Articles | Volume 16, issue 4/5
https://doi.org/10.5194/se-16-391-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/se-16-391-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
19 May 2025
Research article |
| 19 May 2025
| 19 May 2025
The 3D QP model of the China Seismic Experimental Site (CSES-Q1.0) and its tectonic implications
Mengqiao Duan
Institute of Earthquake Forecasting, China Earthquake Administration, Beijing 100036, China
Institute of Earthquake Forecasting, China Earthquake Administration, Beijing 100036, China
Ying Fu
Sichuan Earthquake Administration, Chengdu, 61004, China
Yanru An
China Earthquake Networks Center, China Earthquake Administration, Beijing 100045, China
Jingqiong Yang
Yunnan Earthquake Administration, Kunming, 650224, China
Xiaodong Zhang
Institute of Earthquake Forecasting, China Earthquake Administration, Beijing 100036, China
Related subject area
Subject area: Crustal structure and composition | Editorial team: Seismics, seismology, paleoseismology, geoelectrics, and electromagnetics | Discipline: Seismology
Understanding seismic anisotropy in the Rotondo granite: investigating stress as a potential source
Seismic noise characterisation for the Buddusò – Ala dei Sardi wind park (Sardinia, Italy) and its impact on the Einstein Telescope candidate site
Earthquakes triggered by the subsurface undrained response to reservoir impoundment at Irapé, Brazil
Accretionary prism deformation and fluid migration caused by slow earthquakes in the Nankai subduction zone
Extraction of pre-earthquake anomalies from borehole strain data using Graph WaveNet: a case study of the 2013 Lushan earthquake in China
Frequency-dependent shear wave attenuation across the Central Anatolia region, Türkiye
Thermal structure of the southern Caribbean and northwestern South America: implications for seismogenesis
Reference seismic crustal model of the Dinarides
The impact of seismic noise produced by wind turbines on seismic borehole measurements
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
Constraints on fracture distribution in the Los Humeros geothermal field from beamforming of ambient seismic noise
Radial anisotropy and S-wave velocity depict the internal to external zone transition within the Variscan orogen (NW Iberia)
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
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
3D crustal structure of the Ligurian Basin revealed by surface wave tomography using ocean bottom seismometer data
Elastic anisotropies of deformed upper crustal rocks in the Alps
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
Relocation of earthquakes in the southern and eastern Alps (Austria, Italy) recorded by the dense, temporary SWATH-D network using a Markov chain Monte Carlo inversion
Seismic noise variability as an indicator of urban mobility during the COVID-19 pandemic in the Santiago metropolitan region, Chile
Transversely isotropic lower crust of Variscan central Europe imaged by ambient noise tomography of the Bohemian Massif
Evaluating seismic beamforming capabilities of distributed acoustic sensing arrays
Crustal structure of southeast Australia from teleseismic receiver functions
Seismic monitoring of the Auckland Volcanic Field during New Zealand's COVID-19 lockdown
Using horizontal-to-vertical spectral ratios to construct shear-wave velocity profiles
Crustal structures beneath the Eastern and Southern Alps from ambient noise tomography
Introducing noisi: a Python tool for ambient noise cross-correlation modeling and noise source inversion
Deep learning for fast simulation of seismic waves in complex media
Fault reactivation by gas injection at an underground gas storage off the east coast of Spain
Lithospheric image of the Central Iberian Zone (Iberian Massif) using global-phase seismic interferometry
Modeling active fault systems and seismic events by using a fiber bundle model – example case: the Northridge aftershock sequence
Visual analytics of aftershock point cloud data in complex fault systems
Passive processing of active nodal seismic data: estimation of VP∕VS ratios to characterize structure and hydrology of an alpine valley infill
Monitoring of induced distributed double-couple sources using Marchenko-based virtual receivers
ER3D: a structural and geophysical 3-D model of central Emilia-Romagna (northern Italy) for numerical simulation of earthquake ground motion
Migration of reflector orientation attributes in deep seismic profiles: evidence for decoupling of the Yilgarn Craton lower crust
The cross-dip correction as a tool to improve imaging of crooked-line seismic data: a case study from the post-glacial Burträsk fault, Sweden
Green's theorem in seismic imaging across the scales
Near-surface structure of the North Anatolian Fault zone from Rayleigh and Love wave tomography using ambient seismic noise
Power spectra of random heterogeneities in the solid earth
A multi-technology analysis of the 2017 North Korean nuclear test
Obtaining reliable source locations with time reverse imaging: limits to array design, velocity models and signal-to-noise ratios
Kathrin Behnen, Marian Hertrich, Hansruedi Maurer, Alexis Shakas, Kai Bröker, Claire Epiney, María Blanch Jover, and Domenico Giardini
Solid Earth, 16, 333–350, https://doi.org/10.5194/se-16-333-2025, https://doi.org/10.5194/se-16-333-2025, 2025
Short summary
Short summary
Several cross-hole seismic surveys in the undisturbed Rotondo granite are used to analyze the seismic anisotropy in the Bedretto Lab, Switzerland. The P and S1 waves show a clear trend of faster velocities in the NE–SW direction and slower velocities perpendicular to it, indicating a tilted transverse isotropic velocity model. The symmetry plane is mostly aligned with the direction of maximum stress, but also the orientation of fractures is expected to influence the velocities.
Giovanni Diaferia, Carlo Giunchi, Marco Olivieri, Irene Molinari, Fabio Di Felice, Andrea Contu, Domenico D'Urso, Luca Naticchioni, Davide Rozza, Jan Harms, Alessandro Cardini, Rosario De Rosa, Matteo Di Giovanni, Valentina Mangano, Fulvio Ricci, Lucia Trozzo, and Carlo Murineddu
EGUsphere, https://doi.org/10.5194/egusphere-2024-3600, https://doi.org/10.5194/egusphere-2024-3600, 2024
Short summary
Short summary
Wind turbines produce strong seismic noise that can disturb nearby sensitive instruments, like seismic sensors. We examines the noise from one of Italy's largest wind farms, near the proposed site for the Einstein Telescope, a future gravitational wave observatory. We find that the turbines generate noticeable noise peaks, detectable up to 13 km. Despite the excellent noise suppression at borehole sensors, small noise disturbances are detectable when the wind park operates at full capacity.
Haris Raza, George Sand França, Eveline Sayão, and Victor Vilarrasa
Solid Earth, 15, 1407–1417, https://doi.org/10.5194/se-15-1407-2024, https://doi.org/10.5194/se-15-1407-2024, 2024
Short summary
Short summary
Hydropower dams associated with a large reservoir, a key renewable, face challenges like reservoir-triggered seismicity (RTS). Here, rock samples show 6.3 %–14.7 % porosity and a maximum permeability of 0.0098 mD. A 136 m reservoir rise causes a 0.61 MPa pore pressure increase. Vertical stress rises by 0.75 MPa, and horizontal stress falls by 0.48 MPa, which leads to fault destabilization, causing RTS. These facts urge the adoption of sustainable energy strategies and future dam development.
Takashi Tonegawa, Takeshi Akuhara, Yusuke Yamashita, Hiroko Sugioka, Masanao Shinohara, Shunsuke Takemura, and Takeshi Tsuji
EGUsphere, https://doi.org/10.5194/egusphere-2024-3405, https://doi.org/10.5194/egusphere-2024-3405, 2024
Short summary
Short summary
This study demonstrates that for slow earthquakes in the shallow Nankai subduction zone, (1) the velocity reductions in the accretionary prism reflect the stress field changes due to the slow earthquakes, and (2) the temporal variations in the heterogeneous structure correspond to upward fluid migrations from the source region of the slow earthquakes.
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
Short summary
Short summary
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.
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
Short summary
Short summary
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.
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
Short summary
Short summary
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.
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
Short summary
Short summary
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.
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
Short summary
Short summary
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.
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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.
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
Short summary
Short summary
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.
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
Short summary
Short summary
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.
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
Short summary
Short summary
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
Short summary
Short summary
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.
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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.
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.
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
Short summary
Short summary
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.
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
Short summary
Short summary
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
Short summary
Short summary
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.
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
Short summary
Short summary
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
Short summary
Short summary
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.
Jiří Kvapil, Jaroslava Plomerová, Hana Kampfová Exnerová, Vladislav Babuška, György Hetényi, and AlpArray Working Group
Solid Earth, 12, 1051–1074, https://doi.org/10.5194/se-12-1051-2021, https://doi.org/10.5194/se-12-1051-2021, 2021
Short summary
Short summary
This paper presents a high-resolution 3-D shear wave velocity (vS) model of the Bohemian Massif crust imaged from high-density data and enhanced depth sensitivity of tomographic inversion. The dominant features of the model are relatively higher vS in the upper crust than in its surrounding, a distinct intra-crustal interface, and a velocity decrease in the lower part of the crust. The low vS in the lower part of the crust is explained by the anisotropic fabric of the lower crust.
Martijn P. A. van den Ende and Jean-Paul Ampuero
Solid Earth, 12, 915–934, https://doi.org/10.5194/se-12-915-2021, https://doi.org/10.5194/se-12-915-2021, 2021
Short summary
Short summary
Distributed acoustic sensing (DAS) is an emerging technology that measures stretching of an optical-fibre cable. This technology can be used to record the ground shaking of earthquakes, which offers a cost-efficient alternative to conventional seismometers. Since DAS is relatively new, we need to verify that existing seismological methods can be applied to this new data type. In this study, we reveal several issues by comparing DAS with conventional seismometer data for earthquake localisation.
Mohammed Bello, David G. Cornwell, Nicholas Rawlinson, Anya M. Reading, and Othaniel K. Likkason
Solid Earth, 12, 463–481, https://doi.org/10.5194/se-12-463-2021, https://doi.org/10.5194/se-12-463-2021, 2021
Short summary
Short summary
In this study, ground motion caused by distant earthquakes recorded in southeast Australia is used to image the structure of the crust and underlying mantle. This part of the Australian continent was assembled over the last 500 million years, but it remains poorly understood. By studying variations in crustal properties and thickness, we find evidence for the presence of an old microcontinent that is embedded in the younger terrane and forms a connection between Victoria and Tasmania.
Kasper van Wijk, Calum J. Chamberlain, Thomas Lecocq, and Koen Van Noten
Solid Earth, 12, 363–373, https://doi.org/10.5194/se-12-363-2021, https://doi.org/10.5194/se-12-363-2021, 2021
Short summary
Short summary
The Auckland Volcanic Field is monitored by a seismic network. The lockdown measures to combat COVID-19 in New Zealand provided an opportunity to evaluate the performance of seismic stations in the network and to search for small(er) local earthquakes, potentially hidden in the noise during "normal" times. Cross-correlation of template events resulted in detection of 30 new events not detected by GeoNet, but there is no evidence of an increase in detections during the quiet period of lockdown.
Janneke van Ginkel, Elmer Ruigrok, and Rien Herber
Solid Earth, 11, 2015–2030, https://doi.org/10.5194/se-11-2015-2020, https://doi.org/10.5194/se-11-2015-2020, 2020
Short summary
Short summary
Knowledge of subsurface velocities is key to understand how earthquake waves travel through the Earth. We present a method to construct velocity profiles for the upper sediment layer on top of the Groningen field, the Netherlands. Here, the soft-sediment layer causes resonance of seismic waves, and this resonance is used to compute velocities from. Recordings from large earthquakes and the background noise signals are used to derive reliable velocities for the deep sedimentary layer.
Ehsan Qorbani, Dimitri Zigone, Mark R. Handy, Götz Bokelmann, and AlpArray-EASI working group
Solid Earth, 11, 1947–1968, https://doi.org/10.5194/se-11-1947-2020, https://doi.org/10.5194/se-11-1947-2020, 2020
Short summary
Short summary
The crustal structure of the Eastern and Southern Alps is complex. Although several seismological studies have targeted the crust, the velocity structure under this area is still not fully understood. Here we study the crustal velocity structure using seismic ambient noise tomography. Our high-resolution models image several velocity anomalies and contrasts and reveal details of the crustal structure. We discuss our new models of the crust with respect to the geologic and tectonic features.
Laura Ermert, Jonas Igel, Korbinian Sager, Eléonore Stutzmann, Tarje Nissen-Meyer, and Andreas Fichtner
Solid Earth, 11, 1597–1615, https://doi.org/10.5194/se-11-1597-2020, https://doi.org/10.5194/se-11-1597-2020, 2020
Short summary
Short summary
We present an open-source tool to model ambient seismic auto- and cross-correlations with spatially varying source spectra. The modeling is based on pre-computed databases of seismic wave propagation, which can be obtained from public data providers. The aim of this tool is to facilitate the modeling of ambient noise correlations, which are an important seismologic observable, with realistic wave propagation physics. We present a description and benchmark along with example use cases.
Ben Moseley, Tarje Nissen-Meyer, and Andrew Markham
Solid Earth, 11, 1527–1549, https://doi.org/10.5194/se-11-1527-2020, https://doi.org/10.5194/se-11-1527-2020, 2020
Short summary
Short summary
Simulations of seismic waves are very important; they allow us to understand how earthquakes spread and how the interior of the Earth is structured. However, whilst powerful, existing simulation methods usually require a large amount of computational power and time to run. In this research, we use modern machine learning techniques to accelerate these calculations inside complex models of the Earth.
Antonio Villaseñor, Robert B. Herrmann, Beatriz Gaite, and Arantza Ugalde
Solid Earth, 11, 63–74, https://doi.org/10.5194/se-11-63-2020, https://doi.org/10.5194/se-11-63-2020, 2020
Short summary
Short summary
We present new earthquake focal depths and fault orientations for earthquakes that occurred in 2013 in the vicinity of an underground gas storage off the east coast of Spain. Our focal depths are in the range of 5–10 km, notably deeper than the depth of the gas injection (2 km). The obtained fault orientations also differ from the predominant faults at shallow depths. This suggests that the faults reactivated are deeper, previously unmapped faults occurring beneath the sedimentary layers.
Juvenal Andrés, Deyan Draganov, Martin Schimmel, Puy Ayarza, Imma Palomeras, Mario Ruiz, and Ramon Carbonell
Solid Earth, 10, 1937–1950, https://doi.org/10.5194/se-10-1937-2019, https://doi.org/10.5194/se-10-1937-2019, 2019
Marisol Monterrubio-Velasco, F. Ramón Zúñiga, José Carlos Carrasco-Jiménez, Víctor Márquez-Ramírez, and Josep de la Puente
Solid Earth, 10, 1519–1540, https://doi.org/10.5194/se-10-1519-2019, https://doi.org/10.5194/se-10-1519-2019, 2019
Short summary
Short summary
Earthquake aftershocks display spatiotemporal correlations arising from their self-organized critical behavior. Stochastical models such as the fiber bundle (FBM) permit the use of an analog of the physical model that produces a statistical behavior with many similarities to real series. In this work, a new model based on FBM that includes geometrical faults systems is proposed. Our analysis focuses on aftershock statistics, and as a study case we modeled the Northridge sequence.
Chisheng Wang, Junzhuo Ke, Jincheng Jiang, Min Lu, Wenqun Xiu, Peng Liu, and Qingquan Li
Solid Earth, 10, 1397–1407, https://doi.org/10.5194/se-10-1397-2019, https://doi.org/10.5194/se-10-1397-2019, 2019
Short summary
Short summary
The point cloud of located aftershocks contains the information which can directly reveal the fault geometry and temporal evolution of an earthquake sequence. However, there is a lack of studies using state-of-the-art visual analytics methods to explore the data to discover hidden information about the earthquake fault. We present a novel interactive approach to illustrate 3-D aftershock point clouds, which can help the seismologist to better understand the complex fault system.
Michael Behm, Feng Cheng, Anna Patterson, and Gerilyn S. Soreghan
Solid Earth, 10, 1337–1354, https://doi.org/10.5194/se-10-1337-2019, https://doi.org/10.5194/se-10-1337-2019, 2019
Short summary
Short summary
New acquisition styles for active seismic source exploration provide a wealth of additional quasi-passive data. We show how these data can be used to gain complementary information about the subsurface. Specifically, we process an active-source dataset from an alpine valley in western Colorado with both active and passive inversion schemes. The results provide new insights on subsurface hydrology based on the ratio of P-wave and S-wave velocity structures.
Joeri Brackenhoff, Jan Thorbecke, and Kees Wapenaar
Solid Earth, 10, 1301–1319, https://doi.org/10.5194/se-10-1301-2019, https://doi.org/10.5194/se-10-1301-2019, 2019
Short summary
Short summary
Earthquakes in the subsurface are hard to monitor due to their complicated signals. We aim to make the monitoring of the subsurface possible by redatuming the sources and the receivers from the surface of the Earth to the subsurface to monitor earthquakes originating from small faults in the subsurface. By using several sources together, we create complex earthquake signals for large-scale faults sources.
Peter Klin, Giovanna Laurenzano, Maria Adelaide Romano, Enrico Priolo, and Luca Martelli
Solid Earth, 10, 931–949, https://doi.org/10.5194/se-10-931-2019, https://doi.org/10.5194/se-10-931-2019, 2019
Short summary
Short summary
Using geological and geophysical data, we set up a 3-D digital description of the underground structure in the central part of the Po alluvial plain. By means of computer-simulated propagation of seismic waves, we were able to identify the structural features that caused the unexpected elongation and amplification of the earthquake ground motion that was observed in the area during the 2012 seismic crisis. The study permits a deeper understanding of the seismic hazard in alluvial basins.
Andrew J. Calvert and Michael P. Doublier
Solid Earth, 10, 637–645, https://doi.org/10.5194/se-10-637-2019, https://doi.org/10.5194/se-10-637-2019, 2019
Short summary
Short summary
Deep (> 40 km) seismic reflection surveys are acquired on land along crooked roads. Using the varying azimuth between source and receiver, the true 3-D orientation of crustal structures can be determined. Applying this method to a survey over the ancient Australian Yilgarn Craton reveals that most reflectors in the lower crust exhibit a systematic dip perpendicular to those in the overlying crust, consistent with lateral flow of a weak lower crust in the hotter early Earth 2.7 billion years ago.
Ruth A. Beckel and Christopher Juhlin
Solid Earth, 10, 581–598, https://doi.org/10.5194/se-10-581-2019, https://doi.org/10.5194/se-10-581-2019, 2019
Short summary
Short summary
Scandinavia is crossed by extensive fault scarps that have likely been caused by huge earthquakes when the ice sheets of the last glacial melted. Due to the inaccessibility of the terrain, reflection seismic data have to be collected along crooked lines, which reduces the imaging quality unless special corrections are applied. We developed a new correction method that is very tolerant to noise and used it to improve the reflection image of such a fault and refine its geological interpretation.
Kees Wapenaar, Joeri Brackenhoff, and Jan Thorbecke
Solid Earth, 10, 517–536, https://doi.org/10.5194/se-10-517-2019, https://doi.org/10.5194/se-10-517-2019, 2019
Short summary
Short summary
The earthquake seismology and seismic exploration communities have developed a variety of seismic imaging methods for passive- and active-source data. Despite the seemingly different approaches and underlying principles, many of these methods are based in some way or another on the same mathematical theorem. Starting with this theorem, we discuss a variety of classical and recent seismic imaging methods in a systematic way and explain their similarities and differences.
George Taylor, Sebastian Rost, Gregory A. Houseman, and Gregor Hillers
Solid Earth, 10, 363–378, https://doi.org/10.5194/se-10-363-2019, https://doi.org/10.5194/se-10-363-2019, 2019
Short summary
Short summary
We constructed a seismic velocity model of the North Anatolian Fault in Turkey. We found that the fault is located within a region of reduced seismic velocity and skirts the edges of a geological unit that displays high seismic velocity, indicating that this unit could be stronger than the surrounding material. Furthermore, we found that seismic waves travel fastest in the NE–SW direction, which is the direction of maximum extension for this part of Turkey and indicates mineral alignment.
Haruo Sato
Solid Earth, 10, 275–292, https://doi.org/10.5194/se-10-275-2019, https://doi.org/10.5194/se-10-275-2019, 2019
Short summary
Short summary
Recent seismological observations clarified that the velocity structure of the crust and upper mantle is randomly heterogeneous. I compile reported power spectral density functions of random velocity fluctuations based on various types of measurements. Their spectral envelope is approximated by the third power of wavenumber. It is interesting to study what kinds of geophysical processes created such a power-law spectral envelope at different scales and in different geological environments.
Peter Gaebler, Lars Ceranna, Nima Nooshiri, Andreas Barth, Simone Cesca, Michaela Frei, Ilona Grünberg, Gernot Hartmann, Karl Koch, Christoph Pilger, J. Ole Ross, and Torsten Dahm
Solid Earth, 10, 59–78, https://doi.org/10.5194/se-10-59-2019, https://doi.org/10.5194/se-10-59-2019, 2019
Short summary
Short summary
On 3 September 2017 official channels of the Democratic People’s Republic of
Korea announced the successful test of a nuclear device. This study provides a
multi-technology analysis of the 2017 North Korean event and its aftermath using a wide array of geophysical methods (seismology, infrasound, remote sensing, radionuclide monitoring, and atmospheric transport modeling). Our results clearly indicate that the September 2017 North Korean event was in fact a nuclear test.
Claudia Werner and Erik H. Saenger
Solid Earth, 9, 1487–1505, https://doi.org/10.5194/se-9-1487-2018, https://doi.org/10.5194/se-9-1487-2018, 2018
Short summary
Short summary
Time reverse imaging is a method for locating quasi-simultaneous or low-amplitude earthquakes. Numerous three-dimensional synthetic simulations were performed to discover the influence of station distributions, complex velocity models and high noise rates on the reliability of localisations. The guidelines obtained enable the estimation of the localisation success rates of an existing station set-up and provide the basis for designing new arrays.
Cited articles
Bai, D., Unsworth, M. J., Meju, M. A., Ma, X., Teng, J., Kong, X., Sun, Y., Sun, J., Wang, L., Jiang, C., Zhao, C., Xiao, P., and Liu, M.: Crustal deformation of the eastern Tibetan plateau revealed by magnetotelluric imaging, Nat. Geosci., 3, 358–362, https://doi.org/10.1038/ngeo830, 2010.
Bao, X., Sun, X., Xu, M., Eaton, D. W., Song, X., Wang, L., Ding, Z., Mi, N., Li, H., Yu, D., Huang, Z., and Wang, P.: Two crustal low-velocity channels beneath SE Tibet revealed by joint inversion of Rayleigh wave dispersion and receiver functions, Earth Planet. Sci. Lett., 415, 16–24, https://doi.org/10.1016/j.epsl.2015.01.020, 2015.
Bao, X., Song, X., Eaton, D. W., Xu, Y., and Chen, H.: Episodic Lithospheric Deformation in Eastern Tibet Inferred From Seismic Anisotropy, Geophys. Res. Lett., 47, e2019GL085721, https://doi.org/10.1029/2019GL085721, 2020.
Brune, J. N.: Tectonic stress and the spectra of seismic shear waves from earthquakes, J. Geophys. Res., 75, 4997–5009, https://doi.org/10.1029/JB075i026p04997, 1970.
CENC: The earthquake catalogues and phase reports. China Earthquake networks center, National Earthquake Data Center, http://data.earthquake.cn (last access: January 2025), 2025.
Chen, Y., Gu, Y. J., Mohammed, F., Wang, J., Sacchi, M. D., Wang, R., and Nguyen, B.: Crustal attenuation beneath western North America: Implications for slab subduction, terrane accretion and arc magmatism of the Cascades, Earth Planet. Sci. Lett., 560, 116783, https://doi.org/10.1016/j.epsl.2021.116783, 2021.
Corel: CorelDRAW Official Website, https://www.corel.com/ (last access: January 2020), 2020.
Dai, A., Tang, C.-C., Liu, L., and Xu, R.: Seismic attenuation tomography in southwestern China: Insight into the evolution of crustal flow in the Tibetan Plateau, Tectonophysics, 792, 228589, https://doi.org/10.1016/j.tecto.2020.228589, 2020.
Deng, Y., Byrnes, J. S., and Bezada, M.: New Insights Into the Heterogeneity of the Lithosphere-Asthenosphere System Beneath South China From Teleseismic Body-Wave Attenuation, Geophys. Res. Lett., 48, e2020GL091654, https://doi.org/10.1029/2020GL091654, 2021.
Diao, F., Wang, R., Wang, Y., Xiong, X., and Walter, T. R.: Fault behavior and lower crustal rheology inferred from the first seven years of postseismic GPS data after the 2008 Wenchuan earthquake, Earth Planet. Sci. Lett., 495, 202–212, https://doi.org/10.1016/j.epsl.2018.05.020, 2018.
Duan, M., Zhou, L., Zhao, C., Liu, Z., and Zhang, X.: High-Resolution 3D QP and QS Models of the Middle Eastern Boundary of the Sichuan–Yunnan Rhombic Block: New Insight into Implication for Seismogenesis, Seismol. Res. Lett., 95, 1759–1775, https://doi.org/10.1785/0220230232, 2024.
Eberhart-Phillips, D.: Three-dimensional velocity structure in northern California Coast Ranges from inversion of local earthquake arrival times, Bull. Seismol. Soc. Am., 76, 1025–1052, 1986.
Eberhart-Phillips, D. and Chadwick, M.: Three-dimensional attenuation model of the shallow Hikurangi subduction zone in the Raukumara Peninsula, New Zealand, J. Geophys. Res., 107, 2033–2050, https://doi.org/10.1029/2000JB000046, 2002.
Eberhart-Phillips, D. and Michael, A. J.: Seismotectonics of the Loma Prieta, California, region determined from three-dimensional Vp,
Eberhart-Phillips, D., Chadwick, M., and Bannister, S.: Three-dimensional attenuation structure of central and southern South Island, New Zealand, from local earthquakes, J. Geophys. Res., 113, B05308–B05308, https://doi.org/10.1029/2007JB005359, 2008.
Evans, J. R., Eberhart-Phillips, D., and Thurber, C.: User's manual for SIMULPS12 for imaging Vp and
Fu, Y. V., Gao, Y., Li, A., Li, L., and Chen, A.: Lithospheric structure of the southeastern margin of the Tibetan Plateau from Rayleigh wave tomography: Lithospheric Velocity Structure of SE Tibet, J. Geophys. Res., 122, 4631–4644, https://doi.org/10.1002/2016JB013096, 2017.
Guo, H. and Thurber, C.: Temporal Changes in Seismic Velocity and Attenuation at The Geysers Geothermal Field, California, From Double-Difference Tomography, J. Geophys. Res., 127, e2021JB022938, https://doi.org/10.1029/2021JB022938, 2022.
Guo, R., Zheng, Y., and Xu, J.: Stress modulation of the seismic gap between the 2008 M8.0 Wenchuan earthquake and the 2013 M7.0 Lushan earthquake and implications for seismic hazard, Geophys. J. Int., 221, 2113–2125, 2020.
Han, S., H. Zhang, H. Xin, W. Shen, and H. Yao: USTClitho2.0: Updated Unified Seismic Tomography Models for Continental China Lithosphere from Joint Inversion of Body-Wave Arrival Times and Surface-Wave Dispersion Data, Seismol. Res. Lett. 93, 201–215, https://doi.org/10.1785/0220210122, 2022.
Hauksson, E. and Shearer, P. M.: Attenuation models (QP and QS) in three dimensions of the southern California crust: Inferred fluid saturation at seismogenic depths, J. Geophys. Res. 111, B05302–B05322, https://doi.org/10.1029/2005JB003947, 2006.
He, H., Chen, Z., Liu, Z., Gao, Z., Hu, L., Lu, C., Shao, J., and Li, Y.: Geochemical features of fluid in Xiaojiang fault zone, Southeastern Tibetan plateau: Implications for fault activity, Appl. Geochem., 148, 105507, https://doi.org/10.1016/j.apgeochem.2022.105507, 2023.
Hu, S., He, L., and Wang, J.: Heat flow in the continental area of China: a new data set, Earth Planet. Sci. Lett., 179, 407–419, 2000.
Huang, J. and Zhao, D.: Crustal heterogeneity and seismotectonics of the region around Beijing, China, Tectonophysics, 385, 159–180, 2004.
Huang, Z., Wang, L., Xu, M., and Zhao, D.: P Wave Anisotropic Tomography of the SE Tibetan Plateau: Evidence for the Crustal and Upper-Mantle Deformations, J. Geophys. Res., 123, 8957–8978, https://doi.org/10.1029/2018JB016048, 2018.
Jiang, G., Hu, S., Shi, Y., Zhang, C., Wang, Z., and Hu, D.: Terrestrial heat flow of continental China: Updated dataset and tectonic implications, Tectonophysics, 753, 36–48, https://doi.org/10.1016/j.tecto.2019.01.006, 2019.
Karato, S. and H. A. Spetzler: Defect microdynamics in minerals and solid-state mechanisms of seismic wave attenuation and velocity dispersion in the mantle, Rev. Geophys., 28, 399–421, 1990.
Lees, J. M. and Lindley, G. T.: Three-dimensional attenuation tomography at Loma Prieta: Inversion of t∗ for Q, J. Geophys. Res. 99, 6843–6863, https://doi.org/10.1029/93JB03460, 1994.
Li, P.: The Xianshuihe-Xiaojiang fault zone: Part I: Regional Tectonic Background, Seismological Press, Beijing, 284 pp., ISBN7-5028-0987-2/P⋅607, 1993 (in Chinese).
Li, X., Bai, D., Ma, X., Chen, Y., Varentsov, I. M., Xue, G., Xue, S., and Lozovsky, I.: Electrical resistivity structure of the Xiaojiang strike-slip fault system (SW China) and its tectonic implications, J. Asian Earth Sci., 176, 57–67, https://doi.org/10.1016/j.jseaes.2019.01.031, 2019.
Li, X., Ma, X., Chen, Y., Xue, S., Varentsov, I. M., and Bai, D.: A plume-modified lithospheric barrier to the southeastward flow of partially molten Tibetan crust inferred from magnetotelluric data, Earth Planet. Sci. Lett., 548, 116493, https://doi.org/10.1016/j.epsl.2020.116493, 2020.
Li, Z., Tian, B., Liu, S., and Yang, J.: Asperity of the 2013 Lushan earthquake in the eastern margin of Tibetan Plateau from seismic tomography and aftershock relocation, Geophys. J. Int., 195, 2016–2022, https://doi.org/10.1093/gji/ggt370, 2013.
Lin, G.: Three-dimensional compressional wave attenuation tomography for the crust and uppermost mantle of Northern and central California, J. Geophys. Res., 119, 3462–3477, https://doi.org/10.1002/2013JB010621, 2014.
Lin, Y., Liu, S., Dinghui, Y., Xiwei, X., Shuxin, Y., and Wenshuai, W.: A multiscale magma system beneath the Tengchong volcano in western Yunnan revealed by ambient noise tomography, Geophys. J. Int., 236, 1828–1839, 2024.
Liu, H., Pei, S., Liu, W., Xue, X., Li, J., Hua, Q., and Li, L.: Crustal and Upper Mantle Attenuation Structure Beneath the Southeastern Tibetan Plateau and Its Implications on Plateau Outgrowth, J. Geophys. Res. 129, e2023JB026977, https://doi.org/10.1029/2023JB026977, 2024.
Liu, X. and Zhao, D.: Seismic attenuation tomography of the Southwest Japan arc: new insight into subduction dynamics, Geophys. J. Int., 201, 135–156, https://doi.org/10.1093/gji/ggv007, 2015.
Liu, Y., Yao, H., Zhang, H., and Fang, H.: The Community Velocity Model V.1.0 of Southwest China, Constructed from Joint Body- and Surface-Wave Travel-Time Tomography, Seismol. Res. Lett., 92, 2972–2987, https://doi.org/10.1785/0220200318, 2021.
Liu, Y., Yu Z., Zhang Z., Yao H., Wang W., Zhang H., Fang H., and Fang L.: The high-resolution community velocity model V2.0 of southwest China, constructed by joint body and surface wave tomography of data recorded at temporary dense arrays, Sci. China Earth Sci., 66, 2368–2385, https://doi.org/10.1007/s11430-022-1161-7, 2023.
McNamara, D. E.: Frequency dependent Lg attenuation in southcentral Alaska, Geophys. Res. Lett., 27, 3949–3952, 2000.
Pei, S., Cui, Z., Sun, Y., Toksoz, M. N., Rowe, C. A., Gao, X., Zhao, J., Liu, H., He, J., and Morgan, F. D.: Structure of the Upper Crust in Japan from S-Wave Attenuation Tomography, Bull. Seismol. Soc. Am., 99, 428–434, https://doi.org/10.1785/0120080029, 2009.
Pei, S., Zhang, H., Su, J., and Cui, Z.: Ductile Gap between the Wenchuan and Lushan Earthquakes Revealed from the Two-dimensional Pg Seismic Tomography, Sci. Rep., 4, 6489, https://doi.org/10.1038/srep06489, 2014.
Qiao, L., Yao, H., Lai, Y.-C., Huang, B.-S., and Zhang, P.: Crustal Structure of Southwest China and Northern Vietnam From Ambient Noise Tomography: Implication for the Large-Scale Material Transport Model in SE Tibet, Tectonics, 37, 1492–1506, https://doi.org/10.1029/2018TC004957, 2018.
Reyners, M., Eberhart-Phillips, D., and Stuart, G.: A three-dimensional image of shallow subduction: crustal structure of the Raukumara Peninsula, New Zealand, Geophys. J. Int. 137, 873–890. https://doi.org/10.1046/j.1365-246x.1999.00842.x, 1999.
Ren, Y., Lu, Z. W., Zhang, X., Xue, S., and Wang, G.: Crustal structure of the Emeishan large igneous province inner zone revealed by deep seismic reflection profile. Chinese J. Geophys., 65, 484–494, https://doi.org/10.6038/cjg2022P0196, 2022 (in Chinese).
Shen, W., Ritzwoller, M. H., Kang, D., Kim, Y., Lin, F.-C., Ning, J., Wang, W., Zheng, Y., and Zhou, L.: A seismic reference model for the crust and uppermost mantle beneath China from surface wave dispersion, Geophys. J. Int., 206, 954–979, https://doi.org/10.1093/gji/ggw175, 2016.
Shen, W., Liu, S., Yang, D., Wang, W., Xu, X., and Yang, S.: The crustal and uppermost mantle dynamics of the Tengchong–Baoshan region revealed by P -wave velocity and azimuthal anisotropic tomography, Geophys. J. Int., 230, 1092–1105, https://doi.org/10.1093/gji/ggac105, 2022.
Shi, Z. and Wang, G.: Evaluation of the permeability properties of the Xiaojiang Fault Zone using hot springs and water wells, Geophys. J. Int., 209, 1526–1533, https://doi.org/10.1093/gji/ggx113, 2017.
Stachnik, J. C., Abers, G. A., and Christensen, D. H.: Seismic attenuation and mantle wedge temperatures in the Alaska subduction zone, J. Geophys. Res. 109, B10304, https://doi.org/10.1029/2004JB003018, 2004.
Sun, Q., Pei, S., Cui, Z., Chen, Y. J., Liu, Y., Xue, X., Li, J., Li, L., and Zuo, H.: Structure-controlled asperities of the 1920 Haiyuan M 8.5 and 1927 Gulang M 8 earthquakes, NE Tibet, China, revealed by high-resolution seismic tomography, Sci. Rep., 11, 5090, https://doi.org/10.1038/s41598-021-84642-7, 2021.
Tang, Z., Yang, D., Pan, W., Dong, X., Wang, N., and Xia, J.: Adjoint Attenuation Tomography of Sichuan–Yunnan Region, Seismol. Res. Lett., 94, 898–912, https://doi.org/10.1785/0220220189, 2023.
Thurber, C. H.: Local earthquake tomography: velocities and
Thurber, C. and Eberhart-Phillips, D.: SIMUL codes for local earthquake tomography, Zenodo [code], https://doi.org/10.5281/zenodo.5547889, 2021.
Toomey, D. R. and Foulger, G. R.: Tomographic inversion of local earthquake data from the Hengill-Grensdalur Central Volcano Complex, Iceland, J. Geophys. Res., 94, 17497–17510, https://doi.org/10.1029/JB094iB12p17497, 1989.
Wang, C., Liang, C., Deng, K., Huang, Y., and Zhou, L.: Spatiotemporal Distribution of Microearthquakes and Implications Around the Seismic Gap Between the Wenchuan and Lushan Earthquakes, Tectonics, 37, 2695–2709, https://doi.org/10.1029/2018TC005000, 2018.
Wang, F., Wang, M., Wang, Y., and Shen, Z.-K.: Earthquake potential of the Sichuan-Yunnan region, western China, J. Asian Earth Sci., 107, 232–243, https://doi.org/10.1016/j.jseaes.2015.04.041, 2015.
Wang, Q. and Gao, Y.: Rayleigh wave phase velocity tomography and strong earthquake activity on the southeastern front of the Tibetan Plateau, Sci. China Earth Sci. 57, 2532–2542, https://doi.org/10.1007/s11430-014-4908-2, 2014.
Wang, Y., Zhang, X., Jiang, C., Wei, H., and Wan, J.: Tectonic controls on the late Miocene–Holocene volcanic eruptions of the Tengchong volcanic field along the southeastern margin of the Tibetan plateau, J. Asian Earth Sci., 30, 375–389, https://doi.org/10.1016/j.jseaes.2006.11.005, 2007.
Wang, Z., Zhao, D., Liu, X., Chen, C., and Li, X.: P and S wave attenuation tomography of the Japan subduction zone, Geochem. Geophys. Geosy., 18, 1688–1710, https://doi.org/10.1002/2017gc006800, 2017.
Wei, Z. and Zhao, L.: Lg-Q model for Sichuan and Yunnan region, Earth Planet. Phys., 3, 526–536, https://doi.org/10.26464/epp2019054, 2019.
Wessel, P., Luis, J., Uieda, L., Scharroo, R., Wobbe, F., Smith, W., and Tian, D.: The Generic Mapping Tools Version 6, Geochem. Geophy. Geosys. 20, 5556–5564, https://doi.org/10.1029/2019GC008515, 2019.
Wu, J., Cai, Y., Wang, wei, Wang, weilai, Wang, C., Fang, L., Liu, Y., and Liu, J.: Three dimensional velocity model and its tectonic implications at China Seismic Experimental Site, eastern margin of the Tibetan Plateau, Sci. China Earth Sci., 54, 2304–2326, 2024.
Wu, J. P., Yang, T., Wang, W. L., Ming, Y. H., and Zhang, T. Z.: Three dimensional P-wave velocity structure around Xiaojiang fault system and its tectonic implications, Chin. J. Geophys. Chin. Engl. Abstr., 56, 2257–2267, 2013.
Xin, H., Zhang, H., Kang, M., He, R., Gao, L., and Gao, J.: High-Resolution Lithospheric Velocity Structure of Continental China by Double-Difference Seismic Travel-Time Tomography, Seismol. Res. Lett. 90, 229–241, https://doi.org/10.1785/0220180209, 2019.
Xu, T., Zhang, Z., Liu, B., Chen, Y., Zhang, M., Tian, X., Xu, Y., and Teng, J.: Crustal velocity structure in the Emeishan large igneous province and evidence of the Permian mantle plume activity, Sci. China Earth Sci., 58, 1133–1147, https://doi.org/10.1007/s11430-015-5094-6, 2015.
Yang, X., Luo, Y., Jiang, C., Yang, Y., Niu, F., and Li, G.: Crustal and Upper Mantle Velocity Structure of SE Tibet From Joint Inversion of Rayleigh Wave Phase Velocity and Teleseismic Body Wave Data, J. Geophys. Res., 128, e2022JB026162, https://doi.org/10.1029/2022JB026162, 2023.
Yang, Y., Forsyth, D. W., and Weeraratne, D. S.: Seismic attenuation near the East Pacific Rise and the origin of the low-velocity zone, Earth Planet. Sci. Lett., 258, 260–268, https://doi.org/10.1016/j.epsl.2007.03.040, 2007.
Yang, Y., Yao, H., Wu, H., Zhang, P., and Wang, M.: A new crustal shear-velocity model in Southwest China from joint seismological inversion and its implications for regional crustal dynamics, Geophys. J. Int., 1379–1393, https://doi.org/10.1093/gji/ggz514, 2020.
Yang, Y. J., Ritzwoller, M. H., Zheng, Y., Shen, W. S., Levshin, A. L., and Xie, Z. J.: A synoptic view of the distribution and connectivity of the mid-crustal low velocity zone beneath Tibet, J. Geophys. Res.-Sol. Ea., 117, B04303, https://doi.org/10.1029/2011JB008810, 2012.
Yao, H., Beghein, C., and van der Hilst, R. D.: Surface wave array tomography in SE Tibet from ambient seismic noise and two-station analysis – II. Crustal and upper-mantle structure, Geophys. J. Int., 173, 205–219, https://doi.org/10.1111/j.1365-246X.2007.03696.x, 2008.
Yu, N., Wang, X., Li, D., Li, X., Wang, E., Kong, W., and Li, T.: The mechanism of deep material transport and seismogenic environment of the Xiaojiang fault system revealed by 3-D magnetotelluric study, Sci. China Earth Sci., 65, 1128–1145, https://doi.org/10.1007/s11430-021-9914-3, 2022.
Yuan, Y., Ma, Y., Hu, S., Guo, T., and Fu, X.: Present day geothermal characteristics in South China, Chinese J. Geophys., 49, 1118–1126, 2006 (in Chinese).
Zhang, M., Guo, Z., Xu, S., Barry, P. H., Sano, Y., Zhang, L., Halldórsson, S. A., Chen, A.-T., Cheng, Z., Liu, C.-Q., Li, S.-L., Lang, Y.-C., Zheng, G., Li, Z., Li, L., and Li, Y.: Linking deeply-sourced volatile emissions to plateau growth dynamics in southeastern Tibetan Plateau, Nat. Commun., 12, 4157, https://doi.org/10.1038/s41467-021-24415-y, 2021.
Zhang, P., Deng, Q., Zhang, G., Ma, J., Gan, W., Min, W., Mao, F., and Wang, Q.: Strong earthquake activity and active blocks in China mainland, Sci. China Earth Sci., 46, 13–24, https://doi.org/10.1360/03dz0002, 2003.
Zhang, Y., Feng, W. P., Xu, L. S., Zhou, C. H., and Chen, Y. T.: Spatio-temporal rupture process of the 2008 great Wenchuan earthquake, Sci. China Earth Sci., 52, 145–154, https://doi.org/10.1007/s11430-008-0148-7, 2009a.
Zhang, Z., Wang, Y., Chen, Y., Houseman, G. A., Tian, X. B., Wang, E., and Teng, J. W.: Crustal structure across Longmenshan fault belt from passive source seismic profiling, Geophys. Res. Lett., 36, L17310, https://doi.org/10.1029/2009GL039580, 2009b.
Zhang, Z., Yao, H., and Yang, Y.: Shear wave velocity structure of the crust and upper mantle in Southeastern Tibet and its geodynamic implications, Sci. China Earth Sci., 63, 1278–1293, https://doi.org/10.1007/s11430-020-9625-3, 2020.
Zhao, C., Ran, H., and Chen, K.: Present-day temperatures of magma chambers in the crust beneath Tengchong volcanic field, southwestern China: Estimation from carbon isotopic fractionation between CO2 and CH4 of free gases escaped from thermal springs, Acta Petrol. Sin., 27, 2883–2897, 2011.
Zhao, C., Ran, H., and Wang, Y.: Present-day mantle-derived helium release in the Tengchong volcanic field, Southwest China: Implications for tectonics and magmatism, Acta Petrol. Sin., 28, 1189–1204, 2012.
Zhao, G., Unsworth, M. J., Zhan, Y., Wang, L., Chen, X., Jones, A. G., Tang, J., Xiao, Q., Wang, J., Cai, J., Li, T., Wang, Y., and Zhang, J.: Crustal structure and rheology of the Longmenshan and Wenchuan Mw 7.9 earthquake epicentral area from magnetotelluric data, Geology, 40, 1139–1142, https://doi.org/10.1130/G33703.1, 2012.
Zhao, L. F., Xie, X. B., He, J. K., Tian, X. B., and Yao, Z. X.: Crustal flow pattern beneath the Tibetan Plateau constrained by regional Lg-wave Q tomography, Earth Planet. Sci. Lett., 383, 113–122, https://doi.org/10.1016/j.epsl.2013.09.038, 2013.
Zhao, Y., Guo, L., Guo, Z., Chen, Y. J., Shi, L., and Li, Y.: High resolution crustal model of SE Tibet from joint inversion of seismic P-wave travel-times and Bouguer gravity anomalies and its implication for the crustal channel flow, Tectonophysics, 792, 228580, https://doi.org/10.1016/j.tecto.2020.228580, 2020.
Zhao, Y., Guo, Z., Wang, K., and Yang, Y. J.: A Large Magma Reservoir Beneath the Tengchong Volcano Revealed by Ambient Noise Adjoint Tomography, J. Geophys. Res., 126, e2021JB022116, https://doi.org/10.1029/2021JB022116, 2021.
Zheng, X., Zhao, C., Zheng, S., and Zhou, L.: Crustal and upper mantle structure beneath the SE Tibetan Plateau from joint inversion of multiple types of seismic data, Geophys. J. Int., 217, 331–345, https://doi.org/10.1093/gji/ggz027, 2019.
Zhou, L.: Attenuation tomography of the earth media, PhD Thesis, Institute of Geophysics, China Earthquake Administration, Beijing, 161–174, 2016 (in Chinese).
Zhou, L. and Duan, M.: The High-resolution 3D QP Model of the China Seismic Experiment Site, Zenodo [data set], https://doi.org/10.5281/zenodo.13994425, 2024.
Zhou, L., Zhao, C., Xiu, J., and Chen, Z.: Tomography of QLg in Sichuan-Yunnan Zone, Chinese J. Geophys., 51, 1745–1752, 2008 (in Chinese).
Zhou, L., Zhao, C., Zheng, X., Chen, Z., and Zheng, S.: Inferring water infiltration in the Longtan reservoir area by three-dimensional attenuation tomography, Geophys. J. Int., 186, 1045–1063, https://doi.org/10.1111/j.1365-246X.2011.05124.x, 2011.
Zhou, L., Zhao, C., Luo, J., and Chen, Z.: A Detailed Insight into Fluid Infiltration in the Three Gorges Reservoir Area, China, from 3D VP,
Zhou, L., Song, X., Yang, X., and Zhao, C.: Rayleigh Wave Attenuation Tomography in the Crust of the Chinese Mainland, Geochem. Geophys. Geosy., 21, e2020GC008971, https://doi.org/10.1029/2020GC008971, 2020.
Zhu, H., Bozdağ, E., Duffy, T. S., and Tromp, J.: Seismic attenuation beneath Europe and the North Atlantic: Implications for water in the mantle, Earth Planet. Sci. Lett., 381, 1–11, https://doi.org/10.1016/j.epsl.2013.08.030, 2013.
Zou, H., Shen, C.-C., Fan, Q., and Lin, K.: U-series disequilibrium in young Tengchong volcanics: Recycling of mature clay sediments or mudstones into the SE Tibetan mantle, Lithos, 192–195, 132–141, https://doi.org/10.1016/j.lithos.2014.01.017, 2014.
Short summary
We obtain the highest-resolution three-dimensional P-wave attenuation model in the China Seismic Experimental Site to date. The P-wave attenuation value anomalies along large fault zones, some basin areas, and the Tengchong volcanic area are low, reflecting the high degree of medium fragmentation in these areas with thick sedimentary layers or rich in fluids.
We obtain the highest-resolution three-dimensional P-wave attenuation model in the China Seismic...
Special issue