Articles | Volume 12, issue 11
https://doi.org/10.5194/se-12-2553-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-12-2553-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
12 Nov 2021
Research article |
| 12 Nov 2021
| 12 Nov 2021
Basin inversion: reactivated rift structures in the central Ligurian Sea revealed using ocean bottom seismometers
Martin Thorwart
CORRESPONDING AUTHOR
CAU, Institute of Geosciences, Christian-Albrechts-Universität zu Kiel, 24105 Kiel, Germany
GEOMAR, Marine Geodynamics, Helmholtz Centre for Ocean Research Kiel, 24148 Kiel, Germany
Ingo Grevemeyer
GEOMAR, Marine Geodynamics, Helmholtz Centre for Ocean Research Kiel, 24148 Kiel, Germany
Dietrich Lange
GEOMAR, Marine Geodynamics, Helmholtz Centre for Ocean Research Kiel, 24148 Kiel, Germany
Heidrun Kopp
CAU, Institute of Geosciences, Christian-Albrechts-Universität zu Kiel, 24105 Kiel, Germany
GEOMAR, Marine Geodynamics, Helmholtz Centre for Ocean Research Kiel, 24148 Kiel, Germany
Florian Petersen
GEOMAR, Marine Geodynamics, Helmholtz Centre for Ocean Research Kiel, 24148 Kiel, Germany
Wayne C. Crawford
IPGP, Laboratoire de Géosciences Marines, Institut de Physique du Globe de Paris, Paris, 75238 Cedex 5, France
Anne Paul
Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, IRD, UGE, ISTerre, 38000 Grenoble, France
For further information regarding the team, please visit the link which appears at the end of the paper.
Related authors
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
Short summary
Short summary
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.
Anke Dannowski, Heidrun Kopp, Ingo Grevemeyer, Dietrich Lange, Martin Thorwart, Jörg Bialas, and Martin Wollatz-Vogt
Solid Earth, 11, 873–887, https://doi.org/10.5194/se-11-873-2020, https://doi.org/10.5194/se-11-873-2020, 2020
Short summary
Short summary
The Ligurian Sea opened ~30–15 Ma during the SE migration of the Calabrian subduction zone. Seismic travel time tomography reveals the absence of oceanic crust, documenting that the extension of continental lithosphere stopped before seafloor spreading initiated. The extension led to extreme crustal thinning and possibly exhumed mantle accompanied by syn-rift sedimentation. Our new interpretation of the crust's nature is important for plate reconstruction modelling related to the Alpine orogen.
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
Short summary
Short summary
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.
Konstantinos Michailos, György Hetényi, Matteo Scarponi, Josip Stipčević, Irene Bianchi, Luciana Bonatto, Wojciech Czuba, Massimo Di Bona, Aladino Govoni, Katrin Hannemann, Tomasz Janik, Dániel Kalmár, Rainer Kind, Frederik Link, Francesco Pio Lucente, Stephen Monna, Caterina Montuori, Stefan Mroczek, Anne Paul, Claudia Piromallo, Jaroslava Plomerová, Julia Rewers, Simone Salimbeni, Frederik Tilmann, Piotr Środa, Jérôme Vergne, and the AlpArray-PACASE Working Group
Earth Syst. Sci. Data, 15, 2117–2138, https://doi.org/10.5194/essd-15-2117-2023, https://doi.org/10.5194/essd-15-2117-2023, 2023
Short summary
Short summary
We examine the spatial variability of the crustal thickness beneath the broader European Alpine region by using teleseismic earthquake information (receiver functions) on a large amount of seismic waveform data. We compile a new Moho depth map of the broader European Alps and make our results freely available. We anticipate that our results can potentially provide helpful hints for interdisciplinary imaging and numerical modeling studies.
Yueyang Xia, Dirk Klaeschen, Heidrun Kopp, and Michael Schnabel
Solid Earth, 13, 367–392, https://doi.org/10.5194/se-13-367-2022, https://doi.org/10.5194/se-13-367-2022, 2022
Short summary
Short summary
Geological interpretations based on seismic depth images depend on an accurate subsurface velocity model. Reflection tomography is one method to iteratively update a velocity model based on depth error analysis. We used a warping method to estimate closely spaced data-driven depth error displacement fields. The application to a multichannel seismic line across the Sunda subduction zone illustrates the approach which leads to more accurate images of complex geological structures.
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
Short summary
Short summary
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.
Yueyang Xia, Jacob Geersen, Dirk Klaeschen, Bo Ma, Dietrich Lange, Michael Riedel, Michael Schnabel, and Heidrun Kopp
Solid Earth, 12, 2467–2477, https://doi.org/10.5194/se-12-2467-2021, https://doi.org/10.5194/se-12-2467-2021, 2021
Short summary
Short summary
The 2 June 1994 Java tsunami earthquake ruptured in a seismically quiet subduction zone and generated a larger-than-expected tsunami. Here, we re-process a seismic line across the rupture area. We show that a subducting seamount is located up-dip of the mainshock in a region that did not rupture during the earthquake. Seamount subduction modulates the topography of the marine forearc and acts as a seismic barrier in the 1994 earthquake rupture.
Anke Dannowski, Heidrun Kopp, Ingo Grevemeyer, Dietrich Lange, Martin Thorwart, Jörg Bialas, and Martin Wollatz-Vogt
Solid Earth, 11, 873–887, https://doi.org/10.5194/se-11-873-2020, https://doi.org/10.5194/se-11-873-2020, 2020
Short summary
Short summary
The Ligurian Sea opened ~30–15 Ma during the SE migration of the Calabrian subduction zone. Seismic travel time tomography reveals the absence of oceanic crust, documenting that the extension of continental lithosphere stopped before seafloor spreading initiated. The extension led to extreme crustal thinning and possibly exhumed mantle accompanied by syn-rift sedimentation. Our new interpretation of the crust's nature is important for plate reconstruction modelling related to the Alpine orogen.
Anke Dannowski, Heidrun Kopp, Frauke Klingelhoefer, Dirk Klaeschen, Marc-André Gutscher, Anne Krabbenhoeft, David Dellong, Marzia Rovere, David Graindorge, Cord Papenberg, and Ingo Klaucke
Solid Earth, 10, 447–462, https://doi.org/10.5194/se-10-447-2019, https://doi.org/10.5194/se-10-447-2019, 2019
Short summary
Short summary
The nature of the Ionian Sea crust has been the subject of scientific debate for more than 30 years. Seismic data, recorded on ocean bottom instruments, have been analysed and support the interpretation of the Ionian Abyssal Plain as a remnant of the Tethys oceanic lithosphere with the Malta Escarpment as a transform margin and a Tethys opening in the NNW–SSE direction.
Dietrich Lange, Frederik Tilmann, Tim Henstock, Andreas Rietbrock, Danny Natawidjaja, and Heidrun Kopp
Solid Earth, 9, 1035–1049, https://doi.org/10.5194/se-9-1035-2018, https://doi.org/10.5194/se-9-1035-2018, 2018
Short summary
S. C. Stähler, K. Sigloch, K. Hosseini, W. C. Crawford, G. Barruol, M. C. Schmidt-Aursch, M. Tsekhmistrenko, J.-R. Scholz, A. Mazzullo, and M. Deen
Adv. Geosci., 41, 43–63, https://doi.org/10.5194/adgeo-41-43-2016, https://doi.org/10.5194/adgeo-41-43-2016, 2016
Short summary
Short summary
RHUM-RUM is a German-French project to record motion of the sea-floor caused by earthquakes around La Réunion. For this, 57 autonomous ocean-bottom seismometers were installed for one year in an area of 2000 × 2000 km around the island. These 57 were of two different types (Kiel-built LOBSTER and LCPO2000 from Scripps), whose performances are reviewed here. It was found that the LCPO2000-type is better suited for low frequencies, at the cost of higher power consumption and more difficult handling.
Related subject area
Subject area: Tectonic plate interactions, magma genesis, and lithosphere deformation at all scales | Editorial team: Seismics, seismology, paleoseismology, geoelectrics, and electromagnetics | Discipline: Seismology
Coda-derived source properties estimated using local earthquakes in the Sea of Marmara, Türkiye
Global seismic energy scaling relationships based on the type of faulting
The 2022 MW 6.0 Gölyaka–Düzce earthquake: an example of a medium-sized earthquake in a fault zone early in its seismic cycle
A new seismicity catalogue of the eastern Alps using the temporary Swath-D network
Two subduction-related heterogeneities beneath the Eastern Alps and the Bohemian Massif imaged by high-resolution P-wave tomography
Moho and uppermost mantle structure in the Alpine area from S-to-P converted waves
COVID-19 lockdown effects on the seismic recordings in Central America
Present-day geodynamics of the Western Alps: new insights from earthquake mechanisms
Seismicity and seismotectonics of the Albstadt Shear Zone in the northern Alpine foreland
Seismicity during and after stimulation of a 6.1 km deep enhanced geothermal system in Helsinki, Finland
Seismic gaps and intraplate seismicity around Rodrigues Ridge (Indian Ocean) from time domain array analysis
Rupture-dependent breakdown energy in fault models with thermo-hydro-mechanical processes
Potential influence of overpressurized gas on the induced seismicity in the St. Gallen deep geothermal project (Switzerland)
Seismicity characterization of oceanic earthquakes in the Mexican territory
Seismic waveform tomography of the central and eastern Mediterranean upper mantle
Influence of reservoir geology on seismic response during decameter-scale hydraulic stimulations in crystalline rock
Lithospheric and sublithospheric deformation under the Borborema Province of northeastern Brazil from receiver function harmonic stripping
Induced seismicity in geologic carbon storage
Moment magnitude estimates for central Anatolian earthquakes using coda waves
Event couple spectral ratio Q method for earthquake clusters: application to northwest Bohemia
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
Short summary
Short summary
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.
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
Short summary
Short summary
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.
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
Short summary
Short summary
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.
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
Short summary
Short summary
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.
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
Short summary
Short summary
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.
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
Short summary
Short summary
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.
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
Short summary
Short summary
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.
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
Short summary
Short summary
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.
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
Short summary
Short summary
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.
Maria Leonhardt, Grzegorz Kwiatek, Patricia Martínez-Garzón, Marco Bohnhoff, Tero Saarno, Pekka Heikkinen, and Georg Dresen
Solid Earth, 12, 581–594, https://doi.org/10.5194/se-12-581-2021, https://doi.org/10.5194/se-12-581-2021, 2021
Manvendra Singh and Georg Rümpker
Solid Earth, 11, 2557–2568, https://doi.org/10.5194/se-11-2557-2020, https://doi.org/10.5194/se-11-2557-2020, 2020
Short summary
Short summary
Using seismic array methods, 63 events were located in the Rodrigues–CIR region, not reported by any global network, most of them being off the ridge axis. The lack of seismicity along this section of the CIR, as observed from global data and this study, can possibly be attributed to the presence of partially molten mantle beneath Rodrigues Ridge. The results will be of interest for a broad range of geoscientists interested in the tectonic evolution of Indian Ocean and plume–crust interaction.
Valère Lambert and Nadia Lapusta
Solid Earth, 11, 2283–2302, https://doi.org/10.5194/se-11-2283-2020, https://doi.org/10.5194/se-11-2283-2020, 2020
Dominik Zbinden, Antonio Pio Rinaldi, Tobias Diehl, and Stefan Wiemer
Solid Earth, 11, 909–933, https://doi.org/10.5194/se-11-909-2020, https://doi.org/10.5194/se-11-909-2020, 2020
Short summary
Short summary
The deep geothermal project in St. Gallen, Switzerland, aimed at generating electricity and heat. The fluid pumped into the underground caused hundreds of small earthquakes and one larger one felt by the local population. Here we use computer simulations to study the physical processes that led to the earthquakes. We find that gas present in the subsurface could have intensified the seismicity, which may have implications for future geothermal projects conducted in similar geological conditions.
Quetzalcoatl Rodríguez-Pérez, Víctor Hugo Márquez-Ramírez, and Francisco Ramón Zúñiga
Solid Earth, 11, 791–806, https://doi.org/10.5194/se-11-791-2020, https://doi.org/10.5194/se-11-791-2020, 2020
Short summary
Short summary
We analyzed reported oceanic earthquakes in Mexico. We used data from different agencies. By analyzing the occurrence of earthquakes, we can extract relevant information such as the level of seismic activity, the size of the earthquakes, hypocenter depths, etc. We also studied the focal mechanisms to classify the different types of earthquakes and calculated the stress in the region. The results will be useful to understand the physics of oceanic earthquakes.
Nienke Blom, Alexey Gokhberg, and Andreas Fichtner
Solid Earth, 11, 669–690, https://doi.org/10.5194/se-11-669-2020, https://doi.org/10.5194/se-11-669-2020, 2020
Short summary
Short summary
We have developed a model of the Earth's structure in the upper 500 km beneath the central and eastern Mediterranean. Within this model, we can see parts of the African tectonic plate that have sunk underneath the European plate over the past tens of millions of years. This model was constructed using seismic waveform tomography by matching the seismograms from many earthquakes recorded at the surface to synthetic seismograms that were generated by simulating earthquake wave propagation.
Linus Villiger, Valentin Samuel Gischig, Joseph Doetsch, Hannes Krietsch, Nathan Oliver Dutler, Mohammadreza Jalali, Benoît Valley, Paul Antony Selvadurai, Arnaud Mignan, Katrin Plenkers, Domenico Giardini, Florian Amann, and Stefan Wiemer
Solid Earth, 11, 627–655, https://doi.org/10.5194/se-11-627-2020, https://doi.org/10.5194/se-11-627-2020, 2020
Short summary
Short summary
Hydraulic stimulation summarizes fracture initiation and reactivation due to high-pressure fluid injection. Several borehole intervals covering intact rock and pre-existing fractures were targets for high-pressure fluid injections within a decameter-scale, crystalline rock volume. The observed induced seismicity strongly depends on the target geology. In addition, the severity of the induced seismicity per experiment counter correlates with the observed transmissivity enhancement.
Gaelle Lamarque and Jordi Julià
Solid Earth, 10, 893–905, https://doi.org/10.5194/se-10-893-2019, https://doi.org/10.5194/se-10-893-2019, 2019
Short summary
Short summary
Our goal is to better understand the evolution of the Earth's outer shell in northeast Brazil. We analyze the propagation properties (anisotropy) of distant seismic waves in order to look for subsurface, large-scale deformation structures. Results show that structures visible at the surface can be traced down to ~100 km depth, that the imprint of the opening of the Atlantic Ocean can be detected along the coast and that the continental interior is anomalous due to a complex deformation history.
Víctor Vilarrasa, Jesus Carrera, Sebastià Olivella, Jonny Rutqvist, and Lyesse Laloui
Solid Earth, 10, 871–892, https://doi.org/10.5194/se-10-871-2019, https://doi.org/10.5194/se-10-871-2019, 2019
Short summary
Short summary
To meet the goal of the Paris Agreement to limit temperature increase below 2 ºC, geologic carbon storage (GCS) will be necessary at the gigatonne scale. But to successfully deploy GCS, seismicity induced by CO2 injection should be controlled and maintained below a threshold that does not generate nuisances to the population. We conclude that felt induced seismicity can be minimized provided that a proper site characterization, monitoring and pressure management are performed.
Tuna Eken
Solid Earth, 10, 713–723, https://doi.org/10.5194/se-10-713-2019, https://doi.org/10.5194/se-10-713-2019, 2019
Short summary
Short summary
Proper magnitude estimates for earthquakes can give insight into the seismic energy released at an earthquake source. This is, in fact, essential for better seismic hazard assessments in tectonically active regions. In the present work, I examine local earthquakes in central Anatolia to estimate their moment magnitudes. The main outcome of this study is an empirical relation that can provide a direct physical quantity of seismic energy in the study region.
Marius Kriegerowski, Simone Cesca, Matthias Ohrnberger, Torsten Dahm, and Frank Krüger
Solid Earth, 10, 317–328, https://doi.org/10.5194/se-10-317-2019, https://doi.org/10.5194/se-10-317-2019, 2019
Short summary
Short summary
We developed a method that allows to estimate the acoustic attenuation of seismic waves within regions with high earthquake source densities. Attenuation is of high interest as it allows to draw conclusions on the origin of seismic activity. We apply our method to north-west Bohemia, which is regularly affected by earthquake swarms during which thousands of earthquakes are registered within a few days. We find reduced attenuation within the active volume, which may indicate high fluid content.
Cited articles
Afilhado, A., Moulin, M., Aslanian, D., Schnürle, P., Klingelhoefer, F., Nouzé, H., Rabineau, M., Leroux, E., and Beslier, M.-O.:
Deep crustal structure across a young passive margin from wide-angle and reflection seismic data (The SARDINIA Experiment) – II. Sardinia's margin,
B. Soc. Geol. Fr.,
186, 331–351, https://doi.org/10.2113/gssgfbull.186.4-5.331, 2015.
AlpArray Seismic Network: AlpArray Seismic Network (AASN) temporary component, AlpArray Working Group, Other/Seismic Network [data set], https://doi.org/10.12686/alparray/z3_2015, 2015.
Alvarez, W., Franks, S. G., and Nairn, A. E. M.:
Palaeomagnetism of Plio-Pleistocene Basalts from North-west Sardinia,
Nature Physical Science,
243, 10–11, https://doi.org/10.1038/physci243010a0, 1973.
Bache, F., Olivet, J. L., Gorini, C., Aslanian, D., Labails, C., and Rabineau, M.:
Evolution of rifted continental margins: The case of the Gulf of Lions (Western Mediterranean Basin),
Earth Planet. Sc. Lett.,
292, 345–356, https://doi.org/10.1016/j.epsl.2010.02.001, 2010.
Baroux, E., Béthoux, N., and Bellier, O.:
Analyses of the stress field in southeastern France from earthquake focal mechanisms,
Geophys. J. Int.,
145, 336–348, https://doi.org/10.1046/j.1365-246x.2001.01362.x, 2001.
Béthoux, N.:
A closing Ligurian Sea?,
Pure Appl. Geophys.,
139, 179–194, https://doi.org/10.1007/BF00876326, 1992.
Béthoux, N., Tric, E., Chery, J., and Beslier, M.-O.:
Why is the Ligurian Basin (Mediterranean Sea) seismogenic? Thermomechanical modeling of a reactivated passive margin,
Tectonics,
27, TC5011, https://doi.org/10.1029/2007TC002232, 2008.
Beyreuther, M., Barsch, R., Krischer, L., Megies, T., Behr, Y., and Wassermann, J.:
ObsPy: A Python Toolbox for Seismology,
Seismol. Res. Lett.,
81, 530–533, https://doi.org/10.1785/gssrl.81.3.530, 2010.
Bigot-Cormier, F., Sage, F., Marc, S., Déverchère, J., Ferrandini, M., Guennoc, P., Popoff, M., and Stéphan, J.-F.:
Déformations pliocènes de la marge nord-Ligure (France): les conséquences d'un chevauchement crustal sud-alpin – Pliocene deformation of the north-Ligurian margin (France): consequences of a south-Alpine crustal thrust,
B. Soc. Geol. Fr.,
175, 197–211, 2004.
Booth-Rea, G., Ranero, C. R., and Grevemeyer, I.:
The Alboran volcanic-arc modulated the Messinian faunal exchange and salinity crisis,
Sci. Rep.-UK,
8, 13015, https://doi.org/10.1038/s41598-018-31307-7, 2018.
Bouyahiaoui, B., Sage, F., Abtout, A., Klingelhoefer, F., Yelles-Chaouche, K., Schnürle, P., Marok, A., Déverchère, J., Arab, M., Galve, A., and Collot, J. Y.:
Crustal structure of the eastern Algerian continental margin and adjacent deep basin: implications for late Cenozoic geodynamic evolution of the western Mediterranean,
Geophys. J. Int.,
201, 1912–1938, https://doi.org/10.1093/gji/ggv102, 2015.
Brune, S., Heine, C., Pérez-Gussinyé, M., and Sobolev, S. V.:
Rift migration explains continental margin asymmetry and crustal hyper-extension,
Nat. Commun.,
5, 4014, https://doi.org/10.1038/ncomms5014, 2014.
Burrus, J.:
Contribution to a geodynamic synthesis of the Provencal Basin (NorthWestern Mediterranean),
Mar. Geol.,
55, 247–269, https://doi.org/10.1016/0025-3227(84)90071-9, 1984.
Comas, M., Platt, J. P., Soto, J., and Watts, A.:
The origin and Tectonic History of the Alboran Basin: Insights from Leg 161 Results,
in: IODP: Preliminary Reports,
Ocean Drilling Program, Texas A&M University, College Station, TX 77845-9547, USA,
555–580, https://doi.org/10.2973/odp.proc.sr.161.262.1999, 1999.
Contrucci, I., Nercessian, A., Béthoux, N., Mauffret, A., and Pascal, G.:
A Ligurian (Western Mediterranean Sea) geophysical transect revisited,
Geophys. J. Int.,
146, 74–97, 2001.
Courboulex, F., Larroque, C., Deschamps, A., Kohrs-Sansorny, C., Gélis, C., Got, J. L., Charreau, J., Stéphan, J. F., Béthoux, N., Virieux, J., Brunel, D., Maron, C., Duval, A. M., Perez, J.-L., and Mondielli, P.:
Seismic hazard on the French Riviera: observations, interpretations and simulations,
Geophys. J. Int.,
170, 387–400, https://doi.org/10.1111/j.1365-246X.2007.03456.x, 2007.
Dannowski, A., Kopp, H., Grevemeyer, I., Lange, D., Thorwart, M., Bialas, J., and Wollatz-Vogt, M.: Seismic evidence for failed rifting in the Ligurian Basin, Western Alpine domain, Solid Earth, 11, 873–887, https://doi.org/10.5194/se-11-873-2020, 2020.
Dercourt, J., Zonenshain, L. P., Ricou, L.-E., Kazmin, V. G., Le Pichon, X., Knipper, A. L., Grandjacquet, C., Sbortshikov, I. M., Geyssant, J., Lepvrier, C., Pechersky, D. H., Boulin, J., Sibuet, J.-C., Savostin, L. A., Sorokhtin, O., Westphal, M., Bazhenov, M. L., Lauer, J. P., and Biju-Duval, B.:
Geological evolution of the tethys belt from the atlantic to the pamirs since the LIAS,
Tectonophysics,
123, 241–315, https://doi.org/10.1016/0040-1951(86)90199-X, 1986.
Dessa, J.-X., Simon, S., Lelievre, M., Beslier, M.-O., Deschamps, A., Béthoux, N., Solarino, S., Sage, F., Eva, E., Ferretti, G., Bellier, O., and Eva, C.:
The GROSMarin experiment: three dimensional crustal structure of the North Ligurian margin from refraction tomography and preliminary analysis of microseismic measurements,
B. Soc. Geol. Fr.,
182, 305–321, https://doi.org/10.2113/gssgfbull.182.4.305, 2011.
Dessa, J.-X., Beslier, M.-O., Schenini, L., Chamot-Rooke, N., Corradi, N., Delescluse, M., Déverchère, J., Larroque, C., Sambolian, S., Canva, A., Operto, S., Ribodetti, A., Agurto-Detzel, H., Bulois, C., Chalumeau, C., and Combe, L.:
Seismic Exploration of the Deep Structure and Seismogenic Faults in the Ligurian Sea by Joint Multi Channel and Ocean Bottom Seismic Acquisitions: Preliminary Results of the SEFASILS Cruise,
MDPI Geosciences,
10, 108, https://doi.org/10.3390/geosciences10030108, 2020.
Eva, E., Solarino, S., and Spallarossa, D.:
Seismicity and crustal structure beneath the western Ligurian Sea derived from local earthquake tomography,
Tectonophysics,
339, 495–510, https://doi.org/10.1016/S0040-1951(01)00106-8, 2001.
Eva, E., Malusà, M. G., and Solarino, S.:
Seismotectonics at the Transition Between Opposite-Dipping Slabs (Western Alpine Region),
Tectonics,
39, e2020TC006086, https://doi.org/10.1029/2020TC006086, 2020.
Faccenna, C., Mattei, M., Funiciello, R., and Jolivet, L.:
Styles of back-arc extension in the Central Mediterranean,
Terra Nova,
9, 126–130, https://doi.org/10.1046/j.1365-3121.1997.d01-12.x, 1997.
Faccenna, C., Funiciello, F., Giardini, D., and Lucente, P.:
Episodic back-arc extension during restricted mantle convection in the Central Mediterranean,
Earth Planet. Sc. Lett.,
187, 105–116, https://doi.org/10.1016/S0012-821X(01)00280-1, 2001.
Faccenna, C., Piromallo, C., Crespo-Blanc, A., Jolivet, L., and Rossetti, F.:
Lateral slab deformation and the origin of the western Mediterranean arcs,
Tectonics,
23, TC1012, https://doi.org/10.1029/2002TC001488, 2004.
Finetti, I. R., Boccaletti, M., Bonini, M., Ben, A., Pipan, M., Prizzon, A., and Sani, F.:
Lithospheric Tectono-Stratigraphic Setting of the Ligurian Sea–Northern Apennines–Adriatic Foreland from Integrated CROP Seismic Data,
in: CROP PROJECT: Deep Seismic Exploration of the Central Mediterranean and Italy, Elsevier B.V., University of Trieste, Trieste, Italy, 119–158, 2005.
Frizon de Lamotte, D., Bezar, B. S., Bracène, R., and Mercier, E.:
The two main steps of the Atlas building and geodynamics of the western Mediterranean, Tectonics, 19, 740–761, https://doi.org/10.1029/2000TC900003, 2000.
Gailler, A., Klingelhoefer, F., Olivet, J.-L., and Aslanian, D.:
Crustal structure of a young margin pair: New results across the Liguro–Provencal Basin from wide-angle seismic tomography,
Earth Planet. Sc. Lett.,
286, 333–345, https://doi.org/10.1016/j.epsl.2009.07.001, 2009.
Gattacceca, J., Deino, A., Rizzo, R, Jones, D. S., Henry, B., Beaudoin, B., Valeboin, F.:
Miocene rotation of Sardinia: new paleomagnetic and geochronological constraints and geodynamic implications,
Earth Planet. Sc. Lett.,
258, 359–377, https://doi.org/10.1016/j.epsl.2007.02.003, 2007.
Gómez de la Peña, L., Grevemeyer, I., Kopp, H., Díaz, J., Gallart, J., Booth-Rea, G., Gràcia, E., and Ranero, C. R.:
The Lithospheric Structure of the Gibraltar Arc System From Wide-Angle Seismic Data,
J. Geophys. Res.-Sol. Ea.,
125, e2020JB019854, https://doi.org/10.1029/2020JB019854, 2020.
Grevemeyer, I., Matias, L., and Silva, S.:
Mantle earthquakes beneath the South Iberia continental margin and Gulf of Cadiz – constraints from an onshore-offshore seismological network,
J. Geodyn.,
99, 39–50, https://doi.org/10.1016/j.jog.2016.06.001, 2016.
Gueguen, E., Doglioni, C., and Fernandez, M.:
On the post-25 Ma geodynamic evolution of the western Mediterranean,
Tectonophysics,
298, 259–269, https://doi.org/10.1016/S0040-1951(98)00189-9, 1998.
Handy, M. R. and Brun, J.-P.:
Seismicity, structure and strength of the continental lithosphere,
Earth Planet. Sc. Lett.,
223, 427–441, https://doi.org/10.1016/j.epsl.2004.04.021, 2004.
Handy, M. R., Schmid, S. M., Bousquet, R., Kissling, E., and Bernoulli, D.:
Reconciling plate-tectonic reconstructions of Alpine Tethys with the geological–geophysical record of spreading and subduction in the Alps,
Earth-Sci. Rev.,
102, 121–158, https://doi.org/10.1016/j.earscirev.2010.06.002, 2010.
Hansen, D. L. and Nielsen, S. B.:
Does thermal weakening explain basin inversion?: Stochastic modelling of the thermal structure beneath sedimentary basins,
Earth Planet. Sc. Lett.,
198, 113–127, https://doi.org/10.1016/S0012-821X(02)00471-5, 2002.
Havskov, J. and Ottemoller, L.:
SeisAn Earthquake Analysis Software,
Seismol. Res. Lett.,
70, 532–534, https://doi.org/10.1785/gssrl.70.5.532, 1999.
Hetényi, G., Molinari, I., Clinton, J., Bokelmann, G., Bondár, I., Crawford, W. C., Dessa, J.-X., Doubre, C., Friederich, W., Fuchs, F., Giardini, D., Gráczer, Z., Handy, M. R., Herak, M., Jia, Y., Kissling, E., Kopp, H., Korn, M., Margheriti, L., Meier, T., Mucciarelli, M., Paul, A., Pesaresi, D., Piromallo, C., Plenefisch, T., Plomerová, J., Ritter, J., Rümpker, G., Šipka, V., Spallarossa, D., Thomas, C., Tilmann, F., Wassermann, J., Weber, M., Wéber, Z., Wesztergom, V., Živčić, M., Abreu, R., Allegretti, I., Apoloner, M.-T., Aubert, C., Besançon, S., Bès de Berc, M., Brunel, D., Capello, M., Čarman, M., Cavaliere, A., Chèze, J., Chiarabba, C., Cougoulat, G., Cristiano, L., Czifra, T., D'Alema, E., Danesi, S., Daniel, R., Dannowski, A., Dasović, I., Deschamps, A., Egdorf, S., Fiket, T., Fischer, K., Funke, S., Govoni, A., Gröschl, G., Heimers, S., Heit, B., Herak, D., Huber, J., Jarić, D., Jedlička, P., Jund, H., Klingen, S., Klotz, B., Kolínský, P., Kotek, J., Kühne, L., Kuk, K., Lange, D., Loos, J., Lovati, S., Malengros, D., Maron, C., Martin, X., Massa, M., Mazzarini, F., Métral, L., Moretti, M., Munzarová, H., Nardi, A., Pahor, J., Péquegnat, C., Petersen, F., Piccinini, D., Pondrelli, S., Prevolnik, S., Racine, R., Régnier, M., Reiss, M., Salimbeni, S., AlpArray Seismic Network Team, AlpArray OBS Cruise Crew, and AlpArray Working Group:
The AlpArray Seismic Network: A Large-Scale European Experiment to Image the Alpine Orogen,
Surv. Geophys.,
39, 1009–1033, https://doi.org/10.1007/s10712-018-9472-4, 2018.
INGV Seismological Data Centre: Rete Sismica Nazionale (RSN), Istituto Nazionale di Geofisica e Vulcanologia (INGV) [data set], Italy, https://doi.org/10.13127/SD/X0FXNH7QFY, 2006.
Inkscape Project: Inkscape [code], available at: https://inkscape.org, 2020.
Jolivet, L. and Faccenna, C.:
Mediterranean extension and the Africa-Eurasia collision,
Tectonics,
19, 1095–1106, https://doi.org/10.1029/2000TC900018, 2000.
Jolivet, L., Gorini, C., Smit, J., and Leroy, S.: Continental breakup
and the dynamics of rifting in back-arc basins: The Gulf of Lion
margin: Backarc rift and lower crust extraction, Tectonics, 34,
662–679, https://doi.org/10.1002/2014TC003570, 2015.
Kato, A., Kurashimo, E., Igarashi, T., Sakai, S., Iidaka, T., Shinohara, M., Kanazawa, T., Yamada, T., Hirata, N., and Iwasaki, T.:
Reactivation of ancient rift systems triggers devastating intraplate earthquakes,
Geophys. Res. Lett.,
36, L05301, https://doi.org/10.1029/2008GL036450, 2009.
Larroque, C., Mercier de Lépinay, B., and Migeon, S.:
Morphotectonic and fault–earthquake relationships along the northern Ligurian margin (western Mediterranean) based on high resolution multibeam bathymetry and multichannel seismic reflection profiles, Mar. Geophys. Res. 32 (1–2), 163–179, https://doi.org/10.1007/s11001-010-9108-7, 2011.
Larroque, C., Scotti, O., and Ioualalen, M.:
Reappraisal of the 1887 Ligurian earthquake (western Mediterranean) from macroseismicity, active tectonics and tsunami modelling: Reappraisal of the 1887 Ligurian earthquake,
Geophys. J. Int.,
190, 87–104, https://doi.org/10.1111/j.1365-246X.2012.05498.x, 2012.
Larroque, C., Delouis, B., Sage, F., Régnier, M., Béthoux, N., Courboulex, F., and Deschamps, A.:
The sequence of moderate-size earthquakes at the junction of the Ligurian basin and the Corsica margin (western Mediterranean): The initiation of an active deformation zone revealed?, Tectonophysics, 676, 135–147, https://doi.org/10.1016/j.tecto.2016.03.027, 2016.
Le Breton, E., Handy, M. R., Molli, G., and Ustaszewski, K.:
Post-20 Ma Motion of the Adriatic Plate: New Constraints From Surrounding Orogens and Implications for Crust-Mantle Decoupling: Post-20 Ma Motion of the Adriatic Plate, Tectonics, 36, 3135–3154, https://doi.org/10.1002/2016TC004443, 2017.
Le Breton, E., Brune, S., Ustaszewski, K., Zahirovic, S., Seton, M., and Müller, R. D.: Kinematics and extent of the Piemont–Liguria Basin – implications for subduction processes in the Alps, Solid Earth, 12, 885–913, https://doi.org/10.5194/se-12-885-2021, 2021.
Le Douaran, S., Burrus, J., and Avedik, F.:
Deep structure of the north-western Mediterranean Basin: Results of a two-ship seismic survey,
Mar. Geol.,
55, 325–345, https://doi.org/10.1016/0025-3227(84)90075-6, 1984.
Maffione, M., Speranza, F., Faccenna, C., Cascella, A., Vignaroli, G., and Sagnotti, L.:
A synchronous Alpine and Corsica–Sardinia rotation,
J. Geophys. Res.-Sol. Ea.,
113, B03104, https://doi.org/10.1029/2007JB005214, 2008.
Maggi, A., Jackson, J. A., McKenzie, D., and Priestley, K.:
Earthquake focal depths, effective elastic thickness, and the strength of the continental lithosphere,
Geology,
28, 495–498, https://doi.org/10.1130/0091-7613(2000)28<495:EFDEET>2.0.CO;2, 2000.
Manchuel, K., Traversa, P., Baumont, D., Cara, M., Nayman, E., and Durouchoux, C.:
The French seismic CATalogue (FCAT-17),
B. Earthq. Eng.,
8, 16. 2227–2251, https://doi.org/10.1007/s10518-017-0236-1, 2017.
Masson, C., Mazzotti, S., Vernant, P., and Doerflinger, E.: Extracting small deformation beyond individual station precision from dense Global Navigation Satellite System (GNSS) networks in France and western Europe, Solid Earth, 10, 1905–1920, https://doi.org/10.5194/se-10-1905-2019, 2019.
Mauffret, A., Frizon de Lamotte, D., Lallemant, S., Gorini, C., and Maillard, A.:
E-W opening of the Algerian Basin (Western Mediterranean),
Terra Nova,
16, 257–264, https://doi.org/10.1111/j.1365-3121.2004.00559.x, 2004.
MedNet Project Partner Institutions: Mediterranean Very Broadband Seismographic Network (MedNet), Istituto Nazionale di Geofisica e Vulcanologia (INGV) [data set], https://doi.org/10.13127/SD/FBBBTDTD6Q, 1990.
McKenzie, D. P. and Parker, R. L.:
The North Pacific: an Example of Tectonics on a Sphere,
Nature,
216, 1276–1280, https://doi.org/10.1038/2161276a0, 1967.
Moulin, M., Klingelhoefer, F., Afilhado, A., Aslanian, D., Schnurle, P., Nouzé, H., Rabineau, M., Beslier, M.-O., and Feld, A.:
Deep crustal structure across a young passive margin from wide-angle and reflection seismic data (The SARDINIA Experiment) – I. Gulf of Lion's margin,
B. Soc. Geol. Fr.,
186, 309–330, https://doi.org/10.2113/gssgfbull.186.4-5.309, 2015.
Nicolosi, I., Speranza, F., and Chiappini, M.:
Ultrafast oceanic spreading of the Marsili Basin, southern Tyrrhenian Sea: Evidence from magnetic anomaly analysis,
Geology,
34, 717–720, https://doi.org/10.1130/G22555.1, 2006.
Nocquet, J.-M.:
Present-day kinematics of the Mediterranean: A comprehensive overview of GPS results,
Tectonophysics,
579, 220–242, https://doi.org/10.1016/j.tecto.2012.03.037, 2012.
Nocquet, J.-M. and Calais, E.:
Geodetic Measurements of Crustal Deformation in the Western Mediterranean and Europe,
Pure Appl. Geophys.,
161, 661–681, https://doi.org/10.1007/s00024-003-2468-z, 2004.
Pascal, G. P., Mauffret, A., and Patriat, P.:
The ocean-continent boundary in the Gulf of Lion from analysis of expanding spread profiles and gravity modelling,
Geophys. J. Int.,
113, 701–726, https://doi.org/10.1111/j.1365-246X.1993.tb04662.x, 1993.
Pasquale, V., Verdoya, M., and Chiozzi, P.:
Types of crust beneath the Ligurian Sea,
Terra Nova,
6, 255–266, https://doi.org/10.1111/j.1365-3121.1994.tb00493.x, 1994.
Pérez-Gussinyé, M. and Reston, T. J.:
Rheological evolution during extension at nonvolcanic rifted margins: Onset of serpentinization and development of detachments leading to continental breakup,
J. Geophys. Res.-Sol. Ea.,
106, 3961–3975, https://doi.org/10.1029/2000JB900325, 2001.
Prada, M., Ranero, C. R., Sallarès, V., Zitellini, N., and Grevemeyer, I.:
Mantle exhumation and sequence of magmatic events in the Magnaghi–Vavilov Basin (Central Tyrrhenian, Italy): New constraints from geological and geophysical observations,
Tectonophysics,
689, 133–142, https://doi.org/10.1016/j.tecto.2016.01.041, 2016.
Rehault, J.-P., Boillot, G., and Mauffret, A.:
The Western Mediterranean Basin geological evolution,
Mar. Geol.,
55, 447–477, https://doi.org/10.1016/0025-3227(84)90081-1, 1984.
RESIF: RESIF-RLBP French Broad-band network, RESIF-RAP strong motion network and other seismic stations in metropolitan France, RESIF – Réseau Sismologique et géodésique Français [data set], https://doi.org/10.15778/resif.fr, 1995.
Rollet, N., Déverchère, J., Beslier, M.-O., Guennoc, P., Réhault, J.-P., Sosson, M., and Truffert, C.:
Back arc extension, tectonic inheritance, and volcanism in the Ligurian Sea, Western Mediterranean,
Tectonics,
21, 6–1-6–23, https://doi.org/10.1029/2001TC900027, 2002.
Rosenbaum, G., Lister, G., and Duboz, C.:
Reconstruction of the tectonic evolution of the Western Mediterranean since the Oligocene,
Journal of the Virtual Explorer,
8, 107–130, https://doi.org/10.3809/jvirtex.2002.00053, 2002.
Rüpke, L. H., Schmid, D. W., Perez-Gussinye, M., and Hartz, E.:
Interrelation between rifting, faulting, sedimentation, and mantle serpentinization during continental margin formation – including examples from the Norwegian Sea,
Geochem. Geophy. Geosy.,
14, 4351–4369, https://doi.org/10.1002/ggge.20268, 2013.
Ryan, W. B. F., Carbotte, S. M., Coplan, J. O., O'Hara, S., Melkonian, A., Arko, R., Weissel, R. A., Ferrini, V., Goodwillie, A., Nitsche, F., Bonczkowski, J., and Zemsky, R.:
Global Multi-Resolution Topography synthesis,
Geochem. Geophy. Geosy.,
10, Q03014, https://doi.org/10.1029/2008GC002332, 2009.
Sage, F., Beslier, M. O., Thinon, I., Larroque, C., Dessa, J. X., Migeon, S., Angelier, J., Guennoc, P., Schreiber, D., Michaud, F., Stéphan, J. F., and Sonnette, L.:
Structure and evolution of a passive margin in a compressive environment: example of the southwestern Alps-Ligurian basin junction during the Cenozoic,
Mar. Petrol. Geol.,
28, 1263–1282, https://doi.org/10.1016/j.marpetgeo.2011.03.012, 2011.
Sandiford, M.:
Mechanics of basin inversion,
Tectonophysics,
305, 109–120, https://doi.org/10.1016/S0040-1951(99)00023-2, 1999.
Schettino, A. and Turco, E.:
Plate kinematics of the Western Mediterranean region during the Oligocene and Early Miocene,
Geophys. J. Int.,
166, 1398–1423, https://doi.org/10.1111/j.1365-246X.2006.02997.x, 2006.
Schmidt-Aursch, M. C. and Haberland, C.:
DEPAS (Deutscher Geräte-Pool für amphibische Seismologie): German Instrument Pool for Amphibian Seismology,
Journal of large-scale research facilities,
3, 122, https://doi.org/10.17815/jlsrf-3-165, 2017.
Serpelloni, E., Vannucci, G., Pondrelli, S., Argnani, A., Casula, G., Anzidei, M., Baldi, P., and Gasperini, P.:
Kinematics of the Western Africa–Eurasia plate boundary from focal mechanisms and GPS data,
Geophys. J. Int.,
169, 1180–1200, https://doi.org/10.1111/j.1365246X.2007.03367.x, 2007.
Shearer, P. M.:
Global seismic event detection using a matched filter on long-period seismograms,
J. Geophys. Res.,
99, 13713–13725, https://doi.org/10.1029/94JB00498, 1994.
Snoke, J. A.:
85.12 FOCMEC: FOCal MEChanism determinations,
in: International Geophysics, Vol. 81,
edited by: Lee, W. H. K., Kanamori, H., Jennings, P. C., and Kisslinger, C.,
Academic Press, 1629–1630,
https://doi.org/10.1016/S0074-6142(03)80291-7, 2003.
Speranza, F., Villa, I. M., Sagnotti, L., Florindo, F., Cosentino, D., Cipollari, P., and Mattei, M.:
Age of the Corsica–Sardinia rotation and Liguro–Provençal Basin spreading: new paleomagnetic and Ar/Ar evidence,
Tectonophysics,
347, 231–251, https://doi.org/10.1016/S0040-1951(02)00031-8, 2002.
Spooner, C., Scheck-Wenderoth, M., Cacace, M., Götze, H.-J., and Luijendijk, E.:
The 3D thermal field across the Alpine orogen and its forelands and the relation to seismicity,
Glob. Planet. Change,
193, 103288, https://doi.org/10.1016/j.gloplacha.2020.103288, 2020.
Storchak, D. A., Harris, J., Brown, L., Lieser, K., Shumba, B., Verney, R., Di Giacomo, D., and Korger, E. I. M.:
Rebuild of the Bulletin of the International Seismological Centre (ISC), part 1: 1964–1979,
Geoscience Letters,
4, 32, https://doi.org/10.1186/s40562-017-0098-z, 2017.
van Hinsbergen, D. J. J., Vissers, R. L. M., and Spakman, W.:
Origin and consequences of western Mediterranean subduction, rollback, and slab segmentation,
Tectonics,
33, 393–419, https://doi.org/10.1002/2013TC003349, 2014.
Waldhauser, F. and Ellsworth, W. L.:
A Double-Difference Earthquake Location Algorithm: Method and Application to the Northern Hayward Fault, California,
B. Seismol. Soc. Am.,
90, 1353–1368, https://doi.org/10.1785/0120000006, 2000.
Wessel, P., Luis, J. F., Uieda, L., Scharroo, R., Wobbe, F., Smith, W. H. F., and Tian, D.:
The Generic Mapping Tools Version 6,
Geochem. Geophy. Geosy.,
20, 5556–5564, https://doi.org/10.1029/2019GC008515, 2019.
Wiens, D. A. and Stein, S.:
Age dependence of oceanic intraplate seismicity and implications for lithospheric evolution,
J. Geophys. Res.-Sol. Ea.,
88, 6455–6468, https://doi.org/10.1029/JB088iB08p06455, 1983.
Zitellini, N., Ranero, C. R., Loreto, M. F., Ligi, M., Pastore, M., D'Oriano, F., Sallares, V., Grevemeyer, I., Moeller, S., and Prada, M.:
Recent inversion of the Tyrrhenian Basin,
Geology,
48, 123–127, https://doi.org/10.1130/G46774.1, 2020.
Zoback, M. L.:
Stress field constraints on intraplate seismicity in eastern North America,
J. Geophys. Res.-Sol. Ea.,
97, 11761–11782, https://doi.org/10.1029/92JB00221, 1992.
Short summary
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.
We analyse broadband ocean bottom seismometer data of the AlpArray OBS network in the Ligurian...
