Articles | Volume 5, issue 2
https://doi.org/10.5194/se-5-1027-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/se-5-1027-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Focal mechanism and depth of the 1956 Amorgos twin earthquakes from waveform matching of analogue seismograms
A. Brüstle
Institute of Geology, Mineralogy and Geophysics, Ruhr University Bochum, Germany
now at: Landesamt für Geologie und Bergbau, Rheinland-Pfalz, Germany
W. Friederich
Institute of Geology, Mineralogy and Geophysics, Ruhr University Bochum, Germany
T. Meier
Institute of Geosciences, Christian Albrechts University, Kiel, Germany
C. Gross
formerly at Institute of Geology, Mineralogy and Geophysics, Ruhr University Bochum, Germany
Related authors
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Mark R. Handy, Stefan M. Schmid, Marcel Paffrath, Wolfgang Friederich, and the AlpArray Working Group
Solid Earth, 12, 2633–2669, https://doi.org/10.5194/se-12-2633-2021, https://doi.org/10.5194/se-12-2633-2021, 2021
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New images from the multi-national AlpArray experiment illuminate the Alps from below. They indicate thick European mantle descending beneath the Alps and forming blobs that are mostly detached from the Alps above. In contrast, the Adriatic mantle in the Alps is much thinner. This difference helps explain the rugged mountains and the abundance of subducted and exhumed units at the core of the Alps. The blobs are stretched remnants of old ocean and its margins that reach down to at least 410 km.
Marcel Paffrath, Wolfgang Friederich, Stefan M. Schmid, Mark R. Handy, and the AlpArray and AlpArray-Swath D Working Group
Solid Earth, 12, 2671–2702, https://doi.org/10.5194/se-12-2671-2021, https://doi.org/10.5194/se-12-2671-2021, 2021
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The Alpine mountain belt was formed by the collision of the Eurasian and African plates in the geological past, during which parts of the colliding plates sank into the earth's mantle. Using seismological data from distant earthquakes recorded by the AlpArray Seismic Network, we have derived an image of the current location of these subducted parts in the earth's mantle. Their quantity and spatial distribution is key information needed to understand how the Alpine orogen was formed.
Rainer Kind, Stefan M. Schmid, Xiaohui Yuan, Benjamin Heit, Thomas Meier, and the AlpArray and AlpArray-SWATH-D Working Groups
Solid Earth, 12, 2503–2521, https://doi.org/10.5194/se-12-2503-2021, https://doi.org/10.5194/se-12-2503-2021, 2021
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A large amount of new seismic data from the greater Alpine area have been obtained within the AlpArray and SWATH-D projects. S-to-P converted seismic phases from the Moho and from the mantle lithosphere have been processed with a newly developed method. Examples of new observations are a rapid change in Moho depth at 13° E below the Tauern Window from 60 km in the west to 40 km in the east and a second Moho trough along the boundary of the Bohemian Massif towards the Western Carpathians.
Marcel Paffrath, Wolfgang Friederich, and the AlpArray and AlpArray-SWATH D Working Groups
Solid Earth, 12, 1635–1660, https://doi.org/10.5194/se-12-1635-2021, https://doi.org/10.5194/se-12-1635-2021, 2021
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Using the AlpArray seismic network, we have determined highly accurate travel times of P waves from over 370 major global earthquakes between 2015 and 2019, which shall be used for a tomography of the mantle beneath the greater Alpine region.
Comparing with theoretical travel times of a standard reference earth model, we receive very stable patterns of travel-time differences across the network which provide evidence of varying subduction behaviour along the strike of the Alpine orogen.
Maximilian Lowe, Jörg Ebbing, Amr El-Sharkawy, and Thomas Meier
Solid Earth, 12, 691–711, https://doi.org/10.5194/se-12-691-2021, https://doi.org/10.5194/se-12-691-2021, 2021
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This study estimates the gravitational contribution from subcrustal density heterogeneities interpreted as subducting lithosphere beneath the Alps to the gravity field. We showed that those heterogeneities contribute up to 40 mGal of gravitational signal. Such density variations are often not accounted for in Alpine lithospheric models. We demonstrate that future studies should account for subcrustal density variations to provide a meaningful representation of the complex geodynamic Alpine area.
Marcel Tesch, Johannes Stampa, Thomas Meier, Edi Kissling, György Hetényi, Wolfgang Friederich, Michael Weber, Ben Heit, and the AlpArray Working Group
Solid Earth Discuss., https://doi.org/10.5194/se-2020-122, https://doi.org/10.5194/se-2020-122, 2020
Publication in SE not foreseen
Emanuel D. Kästle, Claudio Rosenberg, Lapo Boschi, Nicolas Bellahsen, Thomas Meier, and Amr El-Sharkawy
Solid Earth Discuss., https://doi.org/10.5194/se-2019-17, https://doi.org/10.5194/se-2019-17, 2019
Revised manuscript not accepted
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We provide an extensive comparison of high-resolution subsurface models of the Alpine subduction zone. The imaged slab geometries are discussed in relation to the geodynamic evolution of the Alpine region. In the eastern Alps, we compare the models to three scenarios from the literature and propose a fourth one which best fits the tomographic images and the geological constraints. We find that the European slab is broken off below the entire Alpine arc, at variable depth levels.
F. Sodoudi, A. Brüstle, T. Meier, R. Kind, W. Friederich, and EGELADOS working group
Solid Earth, 6, 135–151, https://doi.org/10.5194/se-6-135-2015, https://doi.org/10.5194/se-6-135-2015, 2015
W. Friederich, A. Brüstle, L. Küperkoch, T. Meier, S. Lamara, and Egelados Working Group
Solid Earth, 5, 275–297, https://doi.org/10.5194/se-5-275-2014, https://doi.org/10.5194/se-5-275-2014, 2014
W. Friederich, L. Lambrecht, B. Stöckhert, S. Wassmann, and C. Moos
Solid Earth, 5, 141–159, https://doi.org/10.5194/se-5-141-2014, https://doi.org/10.5194/se-5-141-2014, 2014
S. Wehling-Benatelli, D. Becker, M. Bischoff, W. Friederich, and T. Meier
Solid Earth, 4, 405–422, https://doi.org/10.5194/se-4-405-2013, https://doi.org/10.5194/se-4-405-2013, 2013
C. Weidle, R. A. Soomro, L. Cristiano, and T. Meier
Adv. Geosci., 36, 21–25, https://doi.org/10.5194/adgeo-36-21-2013, https://doi.org/10.5194/adgeo-36-21-2013, 2013
Related subject area
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Highlights on mantle deformation beneath the Western Alps with seismic anisotropy using CIFALPS2 data
Frequency-dependent shear wave attenuation across the Central Anatolia region, Türkiye
Coda-derived source properties estimated using local earthquakes in the Sea of Marmara, Türkiye
Earthquakes triggered by the subsurface undrained response to reservoir-impoundment at Irapé, Brazil
Thermal structure of the southern Caribbean and northwestern South America: implications for seismogenesis
Linked and fully coupled 3D earthquake dynamic rupture and tsunami modeling for the Húsavík–Flatey Fault Zone in North Iceland
Global seismic energy scaling relationships based on the type of faulting
Earthquake monitoring using deep learning with a case study of the Kahramanmaras Turkey earthquake aftershock sequence
Reference seismic crustal model of the Dinarides
The 2022 MW 6.0 Gölyaka–Düzce earthquake: an example of a medium-sized earthquake in a fault zone early in its seismic cycle
Offshore seismicity clusters in the West Iberian Margin illustrated by 2 decades of events
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The impact of seismic noise produced by wind turbines on seismic borehole measurements
A borehole trajectory inversion scheme to adjust the measurement geometry for 3D travel-time tomography on glaciers
Probing environmental and tectonic changes underneath Mexico City with the urban seismic field
Quantifying gender gaps in seismology authorship
Mapping the basement of the Cerdanya Basin (eastern Pyrenees) using seismic ambient noise
Ocean bottom seismometer (OBS) noise reduction from horizontal and vertical components using harmonic–percussive separation algorithms
Towards real-time seismic monitoring of a geothermal plant using Distributed Acoustic Sensing
Constraints on fracture distribution in the Los Humeros geothermal field from beamforming of ambient seismic noise
Upper-lithospheric structure of northeastern Venezuela from joint inversion of surface-wave dispersion and receiver functions
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Multi-array analysis of volcano-seismic signals at Fogo and Brava, Cape Verde
Reflection imaging of complex geology in a crystalline environment using virtual-source seismology: case study from the Kylylahti polymetallic mine, Finland
Radial anisotropy and S-wave velocity depict the internal to external zone transition within the Variscan orogen (NW Iberia)
The damaging character of shallow 20th century earthquakes in the Hainaut coal area (Belgium)
Distributed acoustic sensing as a tool for subsurface mapping and seismic event monitoring: a proof of concept
Seismic monitoring of the STIMTEC hydraulic stimulation experiment in anisotropic metamorphic gneiss
Two subduction-related heterogeneities beneath the Eastern Alps and the Bohemian Massif imaged by high-resolution P-wave tomography
One-dimensional velocity structure modeling of the Earth's crust in the northwestern Dinarides
A functional tool to explore the reliability of micro-earthquake focal mechanism solutions for seismotectonic purposes
Changepoint detection in seismic double-difference data: application of a trans-dimensional algorithm to data-space exploration
Imaging structure and geometry of slabs in the greater Alpine area – a P-wave travel-time tomography using AlpArray Seismic Network data
3D crustal structure of the Ligurian Basin revealed by surface wave tomography using ocean bottom seismometer data
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Moho and uppermost mantle structure in the Alpine area from S-to-P converted waves
The effect of 2020 COVID-19 lockdown measures on seismic noise recorded in Romania
Elastic anisotropies of deformed upper crustal rocks in the Alps
COVID-19 lockdown effects on the seismic recordings in Central America
A revised image of the instrumental seismicity in the Lodi area (Po Plain, Italy)
Seismic radiation from wind turbines: observations and analytical modeling of frequency-dependent amplitude decays
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Present-day geodynamics of the Western Alps: new insights from earthquake mechanisms
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Regional centroid moment tensor inversion of small to moderate earthquakes in the Alps using the dense AlpArray seismic network: challenges and seismotectonic insights
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Chenyang Li, Yu Duan, Ying Han, Zining Yu, Chengquan Chi, and Dewang Zhang
Solid Earth, 15, 877–893, https://doi.org/10.5194/se-15-877-2024, https://doi.org/10.5194/se-15-877-2024, 2024
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This study advances the field of earthquake prediction by introducing an extraction method for pre-seismic anomalies based on the structure of Graph WaveNet networks. We believe that our study makes a significant contribution to the literature as it not only demonstrates the effectiveness of this innovative approach in integrating borehole strain data from multiple stations but also reveals distinct temporal and spatial correlations preceding earthquake events.
Silvia Pondrelli, Simone Salimbeni, Judith M. Confal, Marco G. Malusà, Anne Paul, Stephane Guillot, Stefano Solarino, Elena Eva, Coralie Aubert, and Liang Zhao
Solid Earth, 15, 827–835, https://doi.org/10.5194/se-15-827-2024, https://doi.org/10.5194/se-15-827-2024, 2024
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We analyse and interpret seismic anisotropy from CIFALPS2 data that fill the gaps in the Western Alps and support a new hypothesis. Instead of a continuous mantle flow parallel to the belt, here we find a N–S mantle deformation pattern that merges first with a mantle deformed by slab steepening beneath the Central Alps and then merges with an asthenospheric flow sourced beneath the Massif Central. This new sketch supports the extinction of slab retreat beneath the Western Alps.
Gizem Izgi, Tuna Eken, Peter Gaebler, Tülay Kaya-Eken, and Tuncay Taymaz
Solid Earth, 15, 657–669, https://doi.org/10.5194/se-15-657-2024, https://doi.org/10.5194/se-15-657-2024, 2024
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In this manuscript, we investigate the complexity of the upper-crustal block of the Central Anatolia region, Türkiye. We present the results of seismic attenuation by examining 1509 local earthquakes recorded at 72 broadband stations and deployed within the framework of a passive seismic experiment. We emphasize the detailed 2D maps of intrinsic and scattering attenuation within the area where two devastating earthquakes (M1 7.8 and M1 7.5 Kahramanmaraş Earthquake Sequence) happened in 2023.
Berkan Özkan, Tuna Eken, Peter Gaebler, and Tuncay Taymaz
EGUsphere, https://doi.org/10.5194/egusphere-2024-721, https://doi.org/10.5194/egusphere-2024-721, 2024
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This study estimates source properties by analyzing seismic data of 303 earthquakes (2018–2020) in Marmara Region, Turkey and finds a strong correlation between Mw-coda and ML. Moreover, the scaled energy increases with seismic moment estimates and shows non-self similar scaling in earthquake sources.
Haris Raza, George Sand França, Eveline Sayão, and Victor Vilarrasa
EGUsphere, https://doi.org/10.5194/egusphere-2024-166, https://doi.org/10.5194/egusphere-2024-166, 2024
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To achieve Paris Agreement goals, emissions reduction is prioritized. Hydropower, a key renewable, faces challenges, like reservoir-triggered seismicity (RTS). Core samples show 6.34–14.734 % porosity, max 0.0098 mD permeability. A 136m reservoir rise causes 0.54 MPa pore pressure increase. Vertical stress rises 0.82 MPa, horizontal drops 0.34 MPa. Irapé's RTS links to the undrained response of reservoir loading, These facts urge sustainable energy strategies and future development of dams.
Ángela María Gómez-García, Álvaro González, Mauro Cacace, Magdalena Scheck-Wenderoth, and Gaspar Monsalve
Solid Earth, 15, 281–303, https://doi.org/10.5194/se-15-281-2024, https://doi.org/10.5194/se-15-281-2024, 2024
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We compute a realistic three-dimensional model of the temperatures down to 75 km deep within the Earth, below the Caribbean Sea and northwestern South America. Using this, we estimate at which rock temperatures past earthquakes nucleated in the region and find that they agree with those derived from laboratory experiments of rock friction. We also analyse how the thermal state of the system affects the spatial distribution of seismicity in this region.
Fabian Kutschera, Alice-Agnes Gabriel, Sara Aniko Wirp, Bo Li, Thomas Ulrich, Claudia Abril, and Benedikt Halldórsson
Solid Earth, 15, 251–280, https://doi.org/10.5194/se-15-251-2024, https://doi.org/10.5194/se-15-251-2024, 2024
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We present a suite of realistic 3D dynamic rupture earthquake–tsunami scenarios for the Húsavík–Flatey Fault Zone in North Iceland and compare one-way linked and fully coupled modeling workflows on two fault system geometries. We find that our dynamic rupture simulation on a less segmented strike-slip fault system causes local tsunami wave heights (crest to trough) of up to ~ 0.9 m due to the large shallow fault slip (~ 8 m), rake rotation (± 20°), and coseismic vertical displacements (± 1 m).
Quetzalcoatl Rodríguez-Pérez and F. Ramón Zúñiga
Solid Earth, 15, 229–249, https://doi.org/10.5194/se-15-229-2024, https://doi.org/10.5194/se-15-229-2024, 2024
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The behavior of seismic energy parameters and their possible dependence on the type of fault for globally detected earthquakes were studied. For this purpose, different energy estimation methods were used. Equations were obtained to convert energies obtained in different ways. The dependence of the seismic energy on the focal mechanism was confirmed up to depths close to 180 km. The results will help to explain the seismic rupture of earthquakes generated at greater depth.
Wei Li, Megha Chakraborty, Jonas Köhler, Claudia Quinteros-Cartaya, Georg Rümpker, and Nishtha Srivastava
Solid Earth, 15, 197–213, https://doi.org/10.5194/se-15-197-2024, https://doi.org/10.5194/se-15-197-2024, 2024
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Seismic phase picking and magnitude estimation are crucial components of real-time earthquake monitoring and early warning. Here, we test the potential of deep learning in real-time earthquake monitoring. We introduce DynaPicker, which leverages dynamic convolutional neural networks for event detection and arrival-time picking, and use the deep-learning model CREIME for magnitude estimation. This workflow is tested on the continuous recording of the Turkey earthquake aftershock sequences.
Katarina Zailac, Bojan Matoš, Igor Vlahović, and Josip Stipčević
Solid Earth, 14, 1197–1220, https://doi.org/10.5194/se-14-1197-2023, https://doi.org/10.5194/se-14-1197-2023, 2023
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Presently there is no complete crustal model of the Dinarides. Using the compilations of previous studies, we have created vertically and laterally varying crustal models defined on a regular grid for the wider area of the Dinarides, also covering parts of the Adriatic Sea and the SW part of the Pannonian Basin. In addition to the seismic velocities and density, we also defined three interfaces: sedimentary deposit bottom, carbonate rock thickness and crustal thickness.
Patricia Martínez-Garzón, Dirk Becker, Jorge Jara, Xiang Chen, Grzegorz Kwiatek, and Marco Bohnhoff
Solid Earth, 14, 1103–1121, https://doi.org/10.5194/se-14-1103-2023, https://doi.org/10.5194/se-14-1103-2023, 2023
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We analyze the 2022 MW 6.0 Gölyaka sequence. A high-resolution seismicity catalog revealed no spatiotemporal localization and lack of immediate foreshocks. Aftershock distribution suggests the activation of the Karadere and Düzce faults. The preferential energy propagation suggests that the mainshock propagated eastwards, which is in agreement with predictions from models, where the velocity in the two sides of the fault is different.
Gabriela Fernández-Viejo, Carlos López-Fernández, and Patricia Cadenas
Solid Earth, 14, 1083–1101, https://doi.org/10.5194/se-14-1083-2023, https://doi.org/10.5194/se-14-1083-2023, 2023
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The seismic activity of the last 20 years within the West Iberian Margin away from the plate boundaries has been analyzed through the Spanish and Portuguese seismic network public databases. Previously defined as diffuse, the study reveals two distinct clusters in the NW–SE direction. Based on the characteristics of the events, some hypotheses for this activity are put forward and discussed, indicating the need for ocean-bottom seismometer data and high-resolution fault mapping.
Laurens Jan Hofman, Jörn Kummerow, Simone Cesca, and the AlpArray–Swath-D Working Group
Solid Earth, 14, 1053–1066, https://doi.org/10.5194/se-14-1053-2023, https://doi.org/10.5194/se-14-1053-2023, 2023
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We present an earthquake catalogue for the eastern and southern Alps based on data from a local temporary monitoring network. The methods we developed for the detection and localisation focus especially on very small earthquakes. This provides insight into the local geology and tectonics and provides an important base for future research in this part of the Alps.
Fabian Limberger, Georg Rümpker, Michael Lindenfeld, and Hagen Deckert
Solid Earth, 14, 859–869, https://doi.org/10.5194/se-14-859-2023, https://doi.org/10.5194/se-14-859-2023, 2023
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Wind turbines that are located close to a seismometer produce ground tremors that can increase the noise level at the seismic station. Using numerical models, we analyse the effectivity of borehole installations to reduce this impact. We study effects of geophysical parameters on the borehole effectivity and validate our modelling approach with data from real boreholes. Boreholes are effective in reducing the impact of wind turbines; however, this depends on the wavelength of the seismic wave.
Sebastian Hellmann, Melchior Grab, Cedric Patzer, Andreas Bauder, and Hansruedi Maurer
Solid Earth, 14, 805–821, https://doi.org/10.5194/se-14-805-2023, https://doi.org/10.5194/se-14-805-2023, 2023
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Acoustic waves are suitable to analyse the physical properties of the subsurface. For this purpose, boreholes are quite useful to deploy a source and receivers in the target area to get a comprehensive high-resolution dataset. However, when conducting such experiments in a subsurface such as glaciers that continuously move, the boreholes get deformed. In our study, we therefore developed a method that allows an analysis of the ice while considering deformations.
Laura A. Ermert, Enrique Cabral-Cano, Estelle Chaussard, Darío Solano-Rojas, Luis Quintanar, Diana Morales Padilla, Enrique A. Fernández-Torres, and Marine A. Denolle
Solid Earth, 14, 529–549, https://doi.org/10.5194/se-14-529-2023, https://doi.org/10.5194/se-14-529-2023, 2023
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Mexico City is built on a unique ground containing the clay-rich sediments of the ancient lake Texcoco. Continuous imperceptible shaking of these deposits by city traffic and other sources allows us to monitor changes in the subsurface seismic wave speed. Wave speed varies seasonally, likely due to temperature and rain effects; it temporarily drops after large earthquakes then starts to recover. Throughout the studied period, it increased on average, which may be related to soil compaction.
Laura Anna Ermert, Maria Koroni, and Naiara Korta Martiartu
Solid Earth, 14, 485–498, https://doi.org/10.5194/se-14-485-2023, https://doi.org/10.5194/se-14-485-2023, 2023
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We investigate women's representation in seismology to raise awareness of existing gender disparities.
By analysing the authorship of peer-reviewed articles, we identify lower representation of women among single authors, high-impact authors, and highly productive authors. Seismology continues to be a male-dominated field, and trends suggest that parity is decades away. These gaps are an obstacle to women’s career advancement and, if neglected, may perpetuate the leaky-pipeline problem.
Jordi Díaz, Sergi Ventosa, Martin Schimmel, Mario Ruiz, Albert Macau, Anna Gabàs, David Martí, Özgenç Akin, and Jaume Vergés
Solid Earth, 14, 499–514, https://doi.org/10.5194/se-14-499-2023, https://doi.org/10.5194/se-14-499-2023, 2023
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We assess the capability of multiple methods based on the interpretation of seismic noise to map the basement of the Cerdanya Basin, located in the eastern Pyrenees. Basement depth estimations retrieved from the different approaches are consistent, with maximum depths reaching 700 m close to the Têt fault bounding the basin to the east. Our results prove that seismic noise analysis using high-density networks is an excellent tool to improve the geological characterization of sedimentary basins.
Zahra Zali, Theresa Rein, Frank Krüger, Matthias Ohrnberger, and Frank Scherbaum
Solid Earth, 14, 181–195, https://doi.org/10.5194/se-14-181-2023, https://doi.org/10.5194/se-14-181-2023, 2023
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Investigation of the global Earth's structure benefits from the analysis of ocean bottom seismometer (OBS) data that allow an improved seismic illumination of dark spots of crustal and mantle structures in the oceanic regions of the Earth. However, recordings from the ocean bottom are often highly contaminated by noise. We developed an OBS noise reduction algorithm, which removes much of the oceanic noise while preserving the earthquake signal and does not introduce waveform distortion.
Jerome Azzola, Katja Thiemann, and Emmanuel Gaucher
EGUsphere, https://doi.org/10.5194/egusphere-2022-1417, https://doi.org/10.5194/egusphere-2022-1417, 2022
Preprint archived
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Distributed Acoustic Sensing is applied to the micro-seismic monitoring of a geothermal plant. In this domain, the feasibility of managing the large flow of generated data and their suitability to monitor locally induced seismicity was yet to be assessed. The proposed monitoring system efficiently managed the acquisition, processing and saving of the data over a 6-month period. This testing period proved that the monitoring concept advantageously complements more classical monitoring networks.
Heather Kennedy, Katrin Löer, and Amy Gilligan
Solid Earth, 13, 1843–1858, https://doi.org/10.5194/se-13-1843-2022, https://doi.org/10.5194/se-13-1843-2022, 2022
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The energy transition is an important topic for benefiting the future; thus renewable energy is required to reach net-zero carbon emission goals. Geothermal energy, heat from the ground, can be used in this transition. Therefore, geothermal fields need to be characterized as much as possible to allow for increased productivity within these fields. This study involves and looks at potential fractures within a geothermal field at depth to help increase the overall understanding of this field.
Roberto Cabieces, Mariano S. Arnaiz-Rodríguez, Antonio Villaseñor, Elizabeth Berg, Andrés Olivar-Castaño, Sergi Ventosa, and Ana M. G. Ferreira
Solid Earth, 13, 1781–1801, https://doi.org/10.5194/se-13-1781-2022, https://doi.org/10.5194/se-13-1781-2022, 2022
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This paper presents a new 3D shear-wave velocity model of the lithosphere of northeastern Venezuela, including new Moho and Vp / Vs maps. Data were retrieved from land and broadband ocean bottom seismometers from the BOLIVAR experiment.
Megha Chakraborty, Wei Li, Johannes Faber, Georg Rümpker, Horst Stoecker, and Nishtha Srivastava
Solid Earth, 13, 1721–1729, https://doi.org/10.5194/se-13-1721-2022, https://doi.org/10.5194/se-13-1721-2022, 2022
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Earthquake magnitude is a crucial parameter in defining its damage potential, and hence its speedy determination is essential to issue an early warning in regions close to the epicentre. This study summarises our findings in an attempt to apply deep-learning-based classifiers to earthquake waveforms, particularly with respect to finding an optimum length of input data. We conclude that the input length has no significant effect on the model accuracy, which varies between 90 %–94 %.
Carola Leva, Georg Rümpker, and Ingo Wölbern
Solid Earth, 13, 1243–1258, https://doi.org/10.5194/se-13-1243-2022, https://doi.org/10.5194/se-13-1243-2022, 2022
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The seismicity of Fogo and Brava, Cape Verde, is dominated by volcano-tectonic earthquakes in the area of Brava and volcanic seismic signals, such as hybrid events, on Fogo. We locate these events using a multi-array analysis, which allows the localization of seismic events occurring outside the network and of volcanic signals lacking clear phases. We observe exceptionally high apparent velocities for the hybrid events located on Fogo. These velocities are likely caused by a complex ray path.
Michal Chamarczuk, Michal Malinowski, Deyan Draganov, Emilia Koivisto, Suvi Heinonen, and Sanna Rötsä
Solid Earth, 13, 705–723, https://doi.org/10.5194/se-13-705-2022, https://doi.org/10.5194/se-13-705-2022, 2022
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In passive seismic measurement, all noise sources from the environment, such as traffic, vibrations caused by distant excavation, and explosive work from underground mines, are utilized. In the Kylylahti experiment, receivers recorded ambient noise sources for 30 d. These recordings were subjected to data analysis and processing using novel methodology developed in our study and used for imaging the subsurface geology of the Kylylahti mine area.
Jorge Acevedo, Gabriela Fernández-Viejo, Sergio Llana-Fúnez, Carlos López-Fernández, Javier Olona, and Diego Pérez-Millán
Solid Earth, 13, 659–679, https://doi.org/10.5194/se-13-659-2022, https://doi.org/10.5194/se-13-659-2022, 2022
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The NW Iberian Peninsula provides one of the most complete Variscan sections in Europe, showing the transition between a sedimentary domain with folds and thrust and a metamorphic domain with igneous intrusions. By processing the seismic ambient noise recorded by several seismograph networks in this area, new 3-D S-wave velocity and radial anisotropy models were created. These models reveal the limit between the two domains, delineating the core of the large western European Variscan Belt.
Thierry Camelbeeck, Koen Van Noten, Thomas Lecocq, and Marc Hendrickx
Solid Earth, 13, 469–495, https://doi.org/10.5194/se-13-469-2022, https://doi.org/10.5194/se-13-469-2022, 2022
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Over the 20th century, shallow damaging seismicity occurred in and near the Hainaut coal mining area in Belgium. We provide an overview of earthquake parameters and impacts, combining felt and damage testimonies and instrumental measurements. Shallower earthquakes have a depth and timing compatible with mining activity. The most damaging events occurred deeper than the mines but could still have been triggered by mining-caused crustal changes. Our modelling can be applied to other regions.
Nicola Piana Agostinetti, Alberto Villa, and Gilberto Saccorotti
Solid Earth, 13, 449–468, https://doi.org/10.5194/se-13-449-2022, https://doi.org/10.5194/se-13-449-2022, 2022
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Sensing the Earth is a fundamental operation for the future where georesources, like geothermal energy and CO2 underground storage, will become important tools for addressing societal challenges. The development of networks of optical fibre cables gives the possibility of a sensing grid with an unprecedented spatial coverage. Here, we investigate the potential of using portions of a optical fibre cable as a standard seismometer for exploring the subsurface and monitoring georesources.
Carolin M. Boese, Grzegorz Kwiatek, Thomas Fischer, Katrin Plenkers, Juliane Starke, Felix Blümle, Christoph Janssen, and Georg Dresen
Solid Earth, 13, 323–346, https://doi.org/10.5194/se-13-323-2022, https://doi.org/10.5194/se-13-323-2022, 2022
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Hydraulic stimulation experiments in underground facilities allow for placing monitoring equipment close to and surrounding the stimulated rock under realistic and complex conditions at depth. We evaluate how accurately the direction-dependent velocity must be known for high-resolution seismic monitoring during stimulation. Induced transient deformation in rocks only 2.5–5 m apart may differ significantly in magnitude and style, and monitoring requires sensitive sensors adapted to the frequency.
Jaroslava Plomerová, Helena Žlebčíková, György Hetényi, Luděk Vecsey, Vladislav Babuška, and AlpArray-EASI and AlpArray working
groups
Solid Earth, 13, 251–270, https://doi.org/10.5194/se-13-251-2022, https://doi.org/10.5194/se-13-251-2022, 2022
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We present high-resolution tomography images of upper mantle structure beneath the E Alps and the adjacent Bohemian Massif. The northward-dipping lithosphere, imaged down to ∼200 km beneath the E Alps without signs of delamination, is probably formed by a mixture of a fragment of detached European plate and the Adriatic plate subductions. A detached high-velocity anomaly, sub-parallel to and distinct from the E Alps heterogeneity, is imaged at ∼100–200 km beneath the southern part of the BM.
Gregor Rajh, Josip Stipčević, Mladen Živčić, Marijan Herak, Andrej Gosar, and the AlpArray Working Group
Solid Earth, 13, 177–203, https://doi.org/10.5194/se-13-177-2022, https://doi.org/10.5194/se-13-177-2022, 2022
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We investigated the 1-D velocity structure of the Earth's crust in the NW Dinarides with inversion of arrival times from earthquakes. The obtained velocity models give a better insight into the crustal structure and show velocity variations among different parts of the study area. In addition to general structural implications and a potential for improving further work, the results of our study can also be used for routine earthquake location and for detecting errors in seismological bulletins.
Guido Maria Adinolfi, Raffaella De Matteis, Rita de Nardis, and Aldo Zollo
Solid Earth, 13, 65–83, https://doi.org/10.5194/se-13-65-2022, https://doi.org/10.5194/se-13-65-2022, 2022
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We propose a methodology useful to evaluate (1) the reliability of a focal mechanism solution inferred by the inversion of seismological data and (2) the performance of a seismic network, operated to monitor natural or induced seismicity, to assess focal mechanism solutions. As a test case, we studied the focal mechanism reliability by using synthetic data computed for ISNet, a local seismic network monitoring the Irpinia fault system (southern Italy).
Nicola Piana Agostinetti and Giulia Sgattoni
Solid Earth, 12, 2717–2733, https://doi.org/10.5194/se-12-2717-2021, https://doi.org/10.5194/se-12-2717-2021, 2021
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One of the present-day challenges for geoscientists is tackling the big data revolution. An ever-growing amount of data needs to be processed and data are subjectively handled before using them to make inferences on the Earth’s interior. But imposing subjective decisions on the data might have strong influences on the final outputs. Here we present a totally novel and automatic application for screening the data and for defining data volumes that are consistent with physical hypotheses.
Marcel Paffrath, Wolfgang Friederich, Stefan M. Schmid, Mark R. Handy, and the AlpArray and AlpArray-Swath D Working Group
Solid Earth, 12, 2671–2702, https://doi.org/10.5194/se-12-2671-2021, https://doi.org/10.5194/se-12-2671-2021, 2021
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The Alpine mountain belt was formed by the collision of the Eurasian and African plates in the geological past, during which parts of the colliding plates sank into the earth's mantle. Using seismological data from distant earthquakes recorded by the AlpArray Seismic Network, we have derived an image of the current location of these subducted parts in the earth's mantle. Their quantity and spatial distribution is key information needed to understand how the Alpine orogen was formed.
Felix N. Wolf, Dietrich Lange, Anke Dannowski, Martin Thorwart, Wayne Crawford, Lars Wiesenberg, Ingo Grevemeyer, Heidrun Kopp, and the AlpArray Working Group
Solid Earth, 12, 2597–2613, https://doi.org/10.5194/se-12-2597-2021, https://doi.org/10.5194/se-12-2597-2021, 2021
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The Ligurian Sea opened ~30–15 Ma during SE migration of the Calabrian subduction zone. Using ambient seismic noise from stations on land and at the ocean bottom, we calculated a 3D shear-velocity model of the Ligurian Basin. In keeping with existing 2D studies, we find a shallow crust–mantle transition at the SW basin centre that deepens towards the northeast, Corsica, and the Liguro-Provençal coast. We observe a separation of SW and NE basins. We do not observe high crustal vP/vS ratios.
Martin Thorwart, Anke Dannowski, Ingo Grevemeyer, Dietrich Lange, Heidrun Kopp, Florian Petersen, Wayne C. Crawford, Anne Paul, and the AlpArray Working Group
Solid Earth, 12, 2553–2571, https://doi.org/10.5194/se-12-2553-2021, https://doi.org/10.5194/se-12-2553-2021, 2021
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We analyse broadband ocean bottom seismometer data of the AlpArray OBS network in the Ligurian Basin. Two earthquake clusters with thrust faulting focal mechanisms indicate compression of the rift basin. The locations of seismicity suggest reactivation of pre-existing rift structures and strengthening of crust and uppermost mantle during rifting-related extension. Slightly different striking directions of faults may mimic the anti-clockwise rotation of the Corsica–Sardinia block.
Rainer Kind, Stefan M. Schmid, Xiaohui Yuan, Benjamin Heit, Thomas Meier, and the AlpArray and AlpArray-SWATH-D Working Groups
Solid Earth, 12, 2503–2521, https://doi.org/10.5194/se-12-2503-2021, https://doi.org/10.5194/se-12-2503-2021, 2021
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A large amount of new seismic data from the greater Alpine area have been obtained within the AlpArray and SWATH-D projects. S-to-P converted seismic phases from the Moho and from the mantle lithosphere have been processed with a newly developed method. Examples of new observations are a rapid change in Moho depth at 13° E below the Tauern Window from 60 km in the west to 40 km in the east and a second Moho trough along the boundary of the Bohemian Massif towards the Western Carpathians.
Bogdan Grecu, Felix Borleanu, Alexandru Tiganescu, Natalia Poiata, Raluca Dinescu, and Dragos Tataru
Solid Earth, 12, 2351–2368, https://doi.org/10.5194/se-12-2351-2021, https://doi.org/10.5194/se-12-2351-2021, 2021
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The lockdown imposed in Romania to prevent the spread of COVID-19 has significantly impacted human activity across the country. By analyzing the ground vibrations recorded at seismic stations, we were able to monitor the changes in human activity before and during the lockdown.
The reduced human activity during the lockdown has also provided a good opportunity for stations sited in noisy urban areas to record earthquake signals that would not have been recorded under normal conditions.
Ruth Keppler, Roman Vasin, Michael Stipp, Tomás Lokajícek, Matej Petruzálek, and Nikolaus Froitzheim
Solid Earth, 12, 2303–2326, https://doi.org/10.5194/se-12-2303-2021, https://doi.org/10.5194/se-12-2303-2021, 2021
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Rocks in mountain belts have been deformed during continental collision causing a certain alignment of the minerals referred to as crystallographic preferred orientation (CPO). Minerals have anisotropic properties: the velocity of seismic waves travelling through them is direction dependent. This leads to anisotropy of the rocks. We measured the CPO of common rocks within the Alps. With this data and known anisotropic properties of the minerals we calculated the seismic anisotropy of the rocks.
Mario Arroyo-Solórzano, Diego Castro-Rojas, Frédérick Massin, Lepolt Linkimer, Ivonne Arroyo, and Robin Yani
Solid Earth, 12, 2127–2144, https://doi.org/10.5194/se-12-2127-2021, https://doi.org/10.5194/se-12-2127-2021, 2021
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We present the first seismic noise variation levels during COVID-19 in Central America using 10 seismometers. We study the impact of the seismic noise reduction on the detectability of earthquakes and on the felt reports. Our results show maximum values (~50 % decrease) at seismic stations near airports and densely inhabited cities. The decrease in seismic noise improved earthquake locations and reports. Seismic noise could also be useful to verify compliance with lockdown measures.
Laura Peruzza, Alessandra Schibuola, Maria Adelaide Romano, Marco Garbin, Mariangela Guidarelli, Denis Sandron, and Enrico Priolo
Solid Earth, 12, 2021–2039, https://doi.org/10.5194/se-12-2021-2021, https://doi.org/10.5194/se-12-2021-2021, 2021
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In weakly seismic or poorly monitored areas, the uncritical use of earthquake catalogues can be misleading. This is the case for a central sector in the Po Valley, where the Northern Apennines and Southern Alps collide. We collect and reprocess the available instrumental data of about 300 earthquakes from 1951 to 2019. The seismicity is weak, deeper than expected, and far from some existing human activities carried out underground. The potential tectonic causative sources are still unknown.
Fabian Limberger, Michael Lindenfeld, Hagen Deckert, and Georg Rümpker
Solid Earth, 12, 1851–1864, https://doi.org/10.5194/se-12-1851-2021, https://doi.org/10.5194/se-12-1851-2021, 2021
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Frequency-dependent amplitude decays of seismic signals induced by wind turbines are determined from (up to) 6 months of continuous recordings measured along an 8 km profile located at a wind farm in Bavaria, Germany. The radiation pattern and amplitude decay of the induced signals are accounted for by an analytical approach that includes path and source effects. This approach is generalized to predict the characteristic seismic radiation patterns of arbitrary wind farm configurations.
Alessio Spurio Mancini, Davide Piras, Ana Margarida Godinho Ferreira, Michael Paul Hobson, and Benjamin Joachimi
Solid Earth, 12, 1683–1705, https://doi.org/10.5194/se-12-1683-2021, https://doi.org/10.5194/se-12-1683-2021, 2021
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The localization of an earthquake is affected by many uncertainties. To correctly propagate these uncertainties into an estimate of the earthquake coordinates and their associated errors, many simulations of seismic waves are needed. This operation is computationally very intensive, hindering the feasibility of this approach. In this paper, we present a series of deep-learning methods to produce accurate seismic traces in a fraction of the time needed with standard methods.
Marguerite Mathey, Christian Sue, Colin Pagani, Stéphane Baize, Andrea Walpersdorf, Thomas Bodin, Laurent Husson, Estelle Hannouz, and Bertrand Potin
Solid Earth, 12, 1661–1681, https://doi.org/10.5194/se-12-1661-2021, https://doi.org/10.5194/se-12-1661-2021, 2021
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This work features the highest-resolution seismic stress and strain fields available at the present time for the analysis of the active crustal deformation of the Western Alps. In this paper, we address a large dataset of newly computed focal mechanisms from a statistical standpoint, which allows us to suggest a joint control from far-field forces and from buoyancy forces on the present-day deformation of the Western Alps.
Marcel Paffrath, Wolfgang Friederich, and the AlpArray and AlpArray-SWATH D Working Groups
Solid Earth, 12, 1635–1660, https://doi.org/10.5194/se-12-1635-2021, https://doi.org/10.5194/se-12-1635-2021, 2021
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Using the AlpArray seismic network, we have determined highly accurate travel times of P waves from over 370 major global earthquakes between 2015 and 2019, which shall be used for a tomography of the mantle beneath the greater Alpine region.
Comparing with theoretical travel times of a standard reference earth model, we receive very stable patterns of travel-time differences across the network which provide evidence of varying subduction behaviour along the strike of the Alpine orogen.
Itzhak Lior, Anthony Sladen, Diego Mercerat, Jean-Paul Ampuero, Diane Rivet, and Serge Sambolian
Solid Earth, 12, 1421–1442, https://doi.org/10.5194/se-12-1421-2021, https://doi.org/10.5194/se-12-1421-2021, 2021
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The increasing use of distributed acoustic sensing (DAS) inhibits the transformation of optical fibers into dense arrays of seismo-acoustic sensors. Here, DAS strain records are converted to ground motions using the waves' apparent velocity. An algorithm for velocity determination is presented, accounting for velocity variations between different seismic waves. The conversion allows for robust determination of fundamental source parameters, earthquake magnitude and stress drop.
Sarah Mader, Joachim R. R. Ritter, Klaus Reicherter, and the AlpArray Working Group
Solid Earth, 12, 1389–1409, https://doi.org/10.5194/se-12-1389-2021, https://doi.org/10.5194/se-12-1389-2021, 2021
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The Albstadt Shear Zone, SW Germany, is an active rupture zone with sometimes damaging earthquakes but no visible surface structure. To identify its segmentations, geometry, faulting pattern and extension, we analyze the continuous earthquake activity in 2011–2018. We find a segmented N–S-oriented fault zone with mainly horizontal and minor vertical movement along mostly NNE- and some NNW-oriented rupture planes. The main horizontal stress is oriented NW and due to Alpine-related loading.
Gesa Maria Petersen, Simone Cesca, Sebastian Heimann, Peter Niemz, Torsten Dahm, Daniela Kühn, Jörn Kummerow, Thomas Plenefisch, and the AlpArray and AlpArray-Swath-D working groups
Solid Earth, 12, 1233–1257, https://doi.org/10.5194/se-12-1233-2021, https://doi.org/10.5194/se-12-1233-2021, 2021
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The Alpine mountains are known for a complex tectonic history. We shed light onto ongoing tectonic processes by studying rupture mechanisms of small to moderate earthquakes between 2016 and 2019 observed by the temporary AlpArray seismic network. The rupture processes of 75 earthquakes were analyzed, along with past earthquakes and deformation data. Our observations point at variations in the underlying tectonic processes and stress regimes across the Alps.
Azam Jozi Najafabadi, Christian Haberland, Trond Ryberg, Vincent F. Verwater, Eline Le Breton, Mark R. Handy, Michael Weber, and the AlpArray and AlpArray SWATH-D working groups
Solid Earth, 12, 1087–1109, https://doi.org/10.5194/se-12-1087-2021, https://doi.org/10.5194/se-12-1087-2021, 2021
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This study achieved high-precision hypocenters of 335 earthquakes (1–4.2 ML) and 1D velocity models of the Southern and Eastern Alps. The general pattern of seismicity reflects head-on convergence of the Adriatic Indenter with the Alpine orogenic crust. The relatively deeper seismicity in the eastern Southern Alps and Giudicarie Belt indicates southward propagation of the Southern Alpine deformation front. The derived hypocenters form excellent data for further seismological studies, e.g., LET.
Javier Ojeda and Sergio Ruiz
Solid Earth, 12, 1075–1085, https://doi.org/10.5194/se-12-1075-2021, https://doi.org/10.5194/se-12-1075-2021, 2021
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In Santiago, Chile, the lockdown imposed due to COVID-19 was recorded by seismological instruments. This analysis shows temporal changes in the surface vibrations controlled by lockdown phases, mobility, and epidemiological factors. Our findings suggest that
dynamic lockdownand the early deconfinement in April 2020 caused an increase in mobility and therefore virus transmission. We propose that seismic networks could be used to monitor urban mobility as a new proxy in public policies.
Cited articles
Amante, C. and Eakins, B.: ETOPO 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis, NOAA Technical Memorandum NESDIS, NGDC-24, 19 pp., 2009.
Ambraseys, N.: The seismic sea wave of July 1956 in the Greek Archipelago, J. Geophys. Res., 65, 1257–1265, 1960.
Ambraseys, N.: Reassessment of earthquakes, 1900–1999, in the Eastern Mediterranean and the Middle East, Geophys. J. Int., 145, 471–485, 2001.
Bohnhoff, M., Markis, J., Papanikolaou, D., and Stavrakakis, G.: Crustal investigations of the Hellenic subduction zone using wide aperture seismic data, Tectonophysics, 343, 239–262, 2001.
Bohnhoff, M., Rische, M., Meier, T., Becker, D., Stavrakakis, G., and Harjes, H.-P.: Microseismic activity in the Hellenic Volcanic Arc, Greece, with emphasis on the seismotectonic setting of the Santorini-Amorgos zone, Tectonophysics, 423, 17–33, 2006.
Braunmiller, J., Kradolfer, U., Baer, M., and Giardini, D.: Regional moment tensor determination in the European-Mediterranean area – initial results, Tectonophysics, 356, 5–22, 2002.
Brüstle, A.: Seismicity of the eastern Hellenic Subduction Zone, Ph. D. thesis, Fakultät für Geowissenschaften, Ruhr-Universität Bochum, 2012.
Charlier, C. and Van Gils, J.: Liste des stations seismologiques mondiales, L'association internationale de seismologie, Observatoire Royal de Belgique, 1953.
Chouliaras, G., Drakatos, G., Makropoulos, K., and Melis, N. S.: Recent seismicity detection increase in the Santorini volcanic island complex, Nat. Hazards Earth Syst. Sci., 12, 859–866, https://doi.org/10.5194/nhess-12-859-2012, 2012.
Comninakis, P. and Papazachos, B.: A catalogue of earthquakes in Greece and the surrounding area for the period 1901–1985, Univ. Thessaloniki Geophys. Lab. Publ., 1986.
Dimitriadis, I., Panagiotopoulos, D., Papazachos, C., Hatzidimitrou, P., Karagianni, E., and Kane, I.: Recent seismic activity (1994–2002) of the Santorini volcano using data from local seismological network, Dev. Volcanol., 7, 185–203, 2005.
Dimitriadis, I., Karagianni, E., Panagiotopoulos, D., Papazachos, C., Hatzdimitriou, P., Bohnhoff, M., Rische, M., and Meier, T.: Seismicity and active tectonics at Coloumbo Reef (Aegean Sea, Greece): monitoring an active volcano at Santorini Volcanic Center using a temporary seismic network, Tectonophysics, 465, 136–149, 2009.
Dominey-Howes, D.: Sedimentary deposits associated with the July 9th 1956 Aegean Sea Tsunami, Phys. Chem. Earth, 21, 51–55, 1996.
Dominey-Howes, D., Cundy, A., and Croudace, I.: High energy marine flood deposits on A}stypalea Island, Greece: possible evidence for the AD 1956 southern {Aegean tsunami, Mar. Geol., 163, 303–315, 2000.
Drakatos, G., Karantonis, G., and Stavrakakis, G.: P wave crustal tomography of Greece with use of an accurate two-point ray tracer, Ann. Geofis., XL, 25–36, 1997.
Dziewonski, A., Bloch, S., and Landisman, M.: A technique for the analysis of transient seismic signals, B. Seismol. Soc. Am., 59, 427–444, 1969.
Endrun, B., Meier, T., Lebedev, S., Bohnhoff, M., and Harjes, H.-P.: S velocity structure and radial anisotropy in the Aegean region from surfac wave dispersion, Geophys. J. Int., 174, 593–616, 2008.
Friederich, W. and Dalkolmo, J.: Complete synthetic seismograms for a spherically symmetric earth by a numerical computation of the Green's function in the frequency domain, Geophys. J. Int., 122, 537–550, 1995.
Friederich, W., Brüstle, A., Küperkoch, L., Meier, T., Lamara, S., and Working Group, Egelados: Focal mechanisms in the southern Aegean from temporary seismic networks – implications for the regional stress field and ongoing deformation processes, Solid Earth, 5, 275–297, https://doi.org/10.5194/se-5-275-2014, 2014.
Galanopoulos, A.: Tsunamis observed on the coasts of Greece from antiquity to present time, Ann. Geofis., 13, 369–386, 1960.
Galanopoulos, A.: The damaging shocks and earthquake potential of Greece, Ann. Geol. Pays Hellen., 30, 648–724, 1982.
Galizin, F. B.: Vorlesung über Seismometrie, Verlag B. G. Teubner, Leizig und Berlin, 1914.
Gerecke, F.: Seismische Registrierungen in Jena, 1. Januar 1948 bis 31. Dezember 1949, Deutsche Akademie der Wissenschaften zu Berlin, Veröffentlichungen des Zentralinstitutes für Erdbebenforschung in Jena, 54, Akademie Verlag Berlin, Berlin, 1950.
Gerecke, G. and Güth, D.: Seismische Registrierungen der Nebenstation von Jena, Potsdam, Halle, Plauen und Sonneberg 1957, Deutsche Akademie der Wissenschaften zu Berlin, Veröffentlichungen des Institutes für Bodendynamik und Erdbebenforschung in Jena, 64, Akademie Verlag Berlin, Berlin, 1961.
Hardebeck, J. and Shearer, P.: A new method for determining first-motion focal mechanisms, B. Seismol. Soc. Am., 92, 2264–2276, 2002.
Hensch, M.: On the interrelation of fluid-induced seismicity and crustal deformation at the Coloumbo Submarine Volcano (Aegean Sea, Greece), Ph. D. thesis, Institut für Geophysik, Universität Hamburg, Hamburg, 2009.
Hiller, W.: Seismischer Bericht des Württembergischen Erdbebendienstes, Veröffentlichungen des Landeserdbebendienstes Baden-Württemberg, Stuttgart, 1951.
Hiller, W. and Schneider, G.: Seismischer Jahresbericht 1960, Veröffentlichungen des Landeserdbebendienstes Baden-Württemberg, Stuttgart, 1962.
Jensen, H.: Bulletin of the seismological station København, Geodætisk institut Proviantgården, Copenhagen, Denmark, 66, 1957.
Kanamori, H.: The energy release in great earthquakes, J. Geophys. Res., 82, 2981–2987, 1977.
Karagianni, E. and Papazachos, C.: Shear velocity structure in the Aegean region obtained by joint inversion of Rayleigh and Love waves, in: The Geodynamics of the Aegean and Anatolia, edited by: Taymaz, T., Yilmaz, Y., and Dilek, Y., Geological Society, London, Special Publications, 291, 159–181, 2007.
Karagianni, E., Panagiotopoulos, D., Panza, G., Suhadolc, P., Papazachos, C., Papazachos, B., Kiratzi, A., Hatzfeld, D., Makropoulos, K., Priestley, K., and Vuan, A.: Rayleigh wave group velocity tomography in the Aegean area, Tectonophysics, 358, 187–209, 2002.
Karagianni, E., Papazachos, C., Panagiotopoulos, D., Suhadolc, P., and Vuan, A. Panza, G.: Shear velocity structure in the Aegean area obtained by inversion of Rayleigh waves, Geophys. J. Int., 160, 127–143, 2005.
Kennett, B., Engdahl, E., and Buland, R.: Constraints on seismic velocities in the Earth from traveltimes, Geophys. J. Int., 122, 108–124, 1995.
Knapmeyer, M.: Geometry of the Aegean Benioff zones, Ann. Geofis., 42, 27–38, 1999.
Kolaitis, A., Papadimiriou, P., Kassaras, I., and Makropoulos, K.: Seismic observations with broadband instruments at Santorini volcano, Bulletin of the Geological Society of Greece, Proceedings of the 11th international Congress, Athens, XXXX, 1150–1161, 2007.
Konstantinou, K. I..: Crustal rheology of the SantoriniAmorgos zone: Implications for the nucleation depth and rupture extent of the 9 July 1956 Amorgos earthquake, southern Aegean, J. Geodynam., 50, 400–409, 2010.
Makris, J.: The crust and upper mantle of the Aegean region from deep seismic soundings, Tectonophysics, 46, 269–284, 1978.
Makropoulos, K., Drakopoulos, J., and Latousakis, J.: A revised and extended earthquake catalogue for Greece since 1900, Geophys. J. Int., 98, 391–394, 1989.
McKenzie, D.: Plate Tectonics of the Mediterranean Region, Nature, 226, 239–243, 1970.
McKenzie, D.: Active tectonics of the Mediterranean region, Geophys. J. Roy. Astr. S., 30, 109–185, 1972.
Meier, T., Dietrich, K., Stöckert, B., and Harjes, H.-P.: One-dimensional models of shear-wave velocity for eastern Mediterranean obtained from the inversion of Rayleigh wave phase velocities and tectonic implications, Geophys. J. Int., 156, 45–58, 2004.
Meier, T., Becker, D., Endrun, B., Rische, M., Bohnhoff, M., Stöckert, B., and Harjes, H.-P.: A model for the Hellenic subduction zone in the area of Crete based on seismological investigations, Geological Society, London, Special Publications, 291, 183–199, 2007.
Michelini, A., De Simoni, B., Amato, A., and Boschi, E.: Collecting, Digitizing, and Distributing Historical Seismological Data, EOS T. Am. Geophys. Un., 86, 261–266, 2005.
Newman, A., Stiros, S., Feng, L., Psimoulis, P., Moschas, F., Saltogianni, V., Jiang, Y., Papazachos, C., Panagiotopoulos, F., Karagianni, E., and Vamvakaris, D.: Recent geodetic unrest at Santorini Caldera, Greece, Geophys. J. Int., 39, L063091, https://doi.org/10.1029/2012GL051286, 2012.
Okal, E., Synolakis, C., Uslu, B., Kalligeris, N., and Voukouvalas, E.: The 1956 earthquake and tsunami in Amorgos, Greece, Geophys. J. Int., 178, 1533–1554, 2009.
Papadopoulos, G. and Pavlides, S.: The large 1956 earthquake in the South Aegean: Macroseismic field configuration, faulting, and neotectonics of Amorgos Island, Earth Planet. Sci. Lett., 113, 383–396, 1992.
Papazachos, B.: A lithospheric model to interpret focal properties of intermediate and shallow shocks in Central Greece, Pageoph., 117, 655–666, 1977.
Papazachos, B. and Delibasis, N.: Tectonic stress field and seismic faulting in the area of Greece, Tectonophysics, 7, 231–255, 1969.
Papazachos, C. and Nolet, G.: P and S deep velocity structure of the Hellenic area obtained by robust nonlinear inversion of travel times, J. Geophys. Res., 102, 8349–8367, 1997.
Papazachos, B., Karakostas, V., Papazachos, C., and Scoridilis, E.: The geometry of the Wadati-Benioff zone and lithospheric kinematics in the Hellenic arc, Tectonophysics, 319, 275–300, 2000.
Perissoratis, C. and Papadopoulos, G.: Sediment instability and slumping in the southern Aegean Sea and the case history of the 1956 tsunami, Mar. Geol., 161, 287–305, 1999.
Pintore, S., Quintiliani, M., and Franceschi, D.: Teseo: a vectoriser of historical seismograms, Comput. Geosci., 31, 1277–1285, 2005.
Reilinger, R., McClusky, S., Vernant, P., Lawrence, S., Ergintav, S., Cakmak, R., Ozener, H., Kadirov, F., Guliev, I., Stepanyan, R., Nadyriya, M., Hahubia, G., Mahmoud, S., Sakr, K., ArRajehi, A., Paradissis, D., Al-Aydrus, A., Prilepin, M., Guseva, T., Evren, E., Dmitrotsa, A. Filikov, S., Gomez, F., Al-Ghazzi, R., and Karam, G.: GPS constraints on continental deformation in the African-Arabian-Eurasia continental collision zone and implications for the dynamics of plate interactions, J. Geophys., 111, B05411, https://doi.org/10.1029/2005JB004051, 2006.
Ritsema, A.: Earthquake mechanisms of the Balcan region, R. Neth. Meteorol. Inst., Sci. Rep., 74, 36, 1974.
Schick, R. and Schneider, G.: Physik des Erdkörpers, Ferdinand Enke Verlag Stuttgart, 1973.
Shirokova, E.: Sress pattern and probable motion in the earthquake foci of the Asia-Mediterranean seismic belt, in: Elastic Strain Field of the Earth and Mechanisms of Earthquake Sources, edited by: Balakina, L. M., Vvedenskaya, A. V. , Golubeva, N. V., Misharina, L. A., and Shirokova, E. I., Nauka, Moscow, 1972.
Sodoudi, F., Kind, R., Hatzfeld, D. Priestley, K., Hanka, W., Wylegalla, K., Stavrakakis, G., Vafidis, A., Harjes, H.-P., and Bohnhoff, M.: Lithospheric structure of the A}egean obtained from {P and S receiver functions, J. Geophys. Res., 111, B12307, https://doi.org/10.1029/2005JB003932, 2006.
Sodoudi, F., Bruestle, A., Meier, T., Kind, R., Friederich, W., and EGELADOS working group: New constraints on the geometry of the subducting African plate and the overriding Aegean plate obtained from P receiver functions and seismicity, Solid Earth Discuss., 5, 427–461, https://doi.org/10.5194/sed-5-427-2013, 2013.
Stiros, S., Maraou, L., and Arnold, M.: Quarternary uplift and tilting of Amorgos Island (southern Aegean) and the 1956 earthquake, Earth Planet. Sci. Lett., 128, 65–76, 1994.
Tirel, C., Gueydan, F., Tiberi, C., and Brun, J.-P.: Aegean crustal thickness inferred from gravity inversion, geodynamical implications, Earth Planet. Sci. Lett., 228, 267–280, 2004.
Vallianatos, F., Michas, G., Papadakis, G., and Tzanis, A.: Evidence of non-extensivity in the seismicity observed during the 2011–2012 unrest at the Santorini volcanic complex, Greece, Nat. Hazards Earth Syst. Sci., 13, 177–185, https://doi.org/10.5194/nhess-13-177-2013, 2013.
Villaseñor, A., Bergman, E. A., Boyd, T. M., Engdahl, E. R., Frazier, D. W., Harden, M. M., Orth, J. L., Parkes, R. L., and Shedlock, K. M.: Toward a comprehensive catalog of global historical seismicity, Eos, Transactions American Geophysical Union, 16 December 1997, https://doi.org/10.1029/97EO00346, 78, 581–588, 1997.
Wells, D. and Coppersmith, K.: New Empirical Relationships among Magnitude, Rupture Length, Rupture Width, Rupture Area and Surface Displacement, B. Seismol. Soc. Am., 84, 974–1002, 1994.
Wessel, P. and Smith, W.: New version of the Generic Mapping Tool released, EOS T. Am. Geophys. Un., 76, p. 329, 1995.
Wielandt, E.: Seismographen, in: Wechselwirkungen, Jahrbuch aus Lehre und Forschung der Universität Stuttgart, available at: http://elib.uni-stuttgart.de/opus/volltexte/1999/488 (last access: 5 November 2013), 1996.