Results 71 to 80 of about 8,342,759 (208)

Comprehensive Study on the 143 A.D. West Gangu Earthquake in the West Qinling Area, Northeastern Margin of Tibetan Plateau

Remote Sensing
The 143 A.D. west Gangu earthquake is documented to have occurred in the West Qinling area, which is located on the northeastern margin of the Tibetan Plateau.
Ruihuan Su, Daoyang Yuan, Hong Xie, Aiguo Wang, Yameng Wen, Jinchao Yu, Yanwen Chen, Hongqiang Li, Hao Sun, Lijun Zhang   +9 more
doaj   +1 more source

The 2 May 2025 Mw 7.4 Drake Passage Earthquake: Insights Into Tectonics at the Shackleton Fracture Zone–Chilean Trench Transition

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract On 2 May 2025, an Mw 7.4 earthquake occurred ∼120 km off the southern tip of Tierra del Fuego, at the transition of the Shackleton Fracture Zone and the Chile Trench. This event exhibits reverse‐faulting mechanisms with relatively steeply dipping planes and is the largest recorded along this complex plate boundary.
A. Vuan, G. Brancatelli, G. Brancolini, L. Gasperini, R. Geletti, E. Lodolo, A. Magrin, M. Menichetti, M. Plasencia, A. Polonia, M. Santulin, A. Tassone   +11 more
wiley   +1 more source

Seismogenic zone structure along the middle America trench: results from the Costa Rica seismogenic zone experiment

, 2003
Summary of the paper Seismogenic zone structure along the middle america trench: Results fromthe costa rica seismogenic zone experimentResumen de la ponencia "Estructura de la zona sismogénica a lo largo de la fosa centroamericana: Resultados del ...
Bilek, Susan, Dorman, LeRoy, Protti, Marino, Schwartz, Susan Y., Deshon, Heather R., Newman, Andrew V.   +5 more
core  

Seismogenic structures along the deformation front from onshore to offshore SW Taiwan

Geoscience Letters
Accurately imaging seismogenic structures is crucial for seismic hazard assessment. This is especially important around the deformation front (DF) region off SW Taiwan, where seismic potential is high but the fault structure and seismic activity are ...
Wen-Nan Wu, Jing-Yi Lin, Wen-Bin Doo, Chung-Liang Lo, Shu-Kun Hsu   +4 more
doaj   +1 more source

Modulation of Slow Slip Event Characteristics Throughout the Costa Rica Subduction Zone Earthquake Cycle

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Slow slip events (SSEs) represent an aseismic transient slip mode that repeats quasi‐periodically, near or partially overlapping with the megathrust earthquake zone. However, the process of stress interaction between SSEs and earthquake zones is not clearly understood.
Luhong Lu, Yajing Liu
wiley   +1 more source

2021年固原震群重定位及发震构造分析

Dizhen xuebao
通过初至P震相定位法测定了2021年固原震群中ML≥3.0地震的震源深度，同时根据多阶段定位和微震匹配定位方法对该震群序列进行了重定位，基于Snoke方法和HASH方法计算了震群序列中ML≥2.8地震的震源机制解，并根据gCAP方法反演了震群中最大的地震即2021年6月22日固原ML3.6地震的震源机制解及矩心深度，确定了ML≥2.8地震基于各种方法所得震源机制的中心解，然后根据重定位结果拟合了断层面，最后初步分析了固原震群的发震构造。结果表明：微震检测到901次ML0.0以上地震事件 ...
Yingcai Xu, Xianwei Zeng, Guofu Luo
doaj   +1 more source

Seismic Imaging of the Crust From Long‐Offset Ocean‐Bottom Seismometer Data Using Time‐Domain Extended‐Source Full‐Waveform Inversion: Application to the Eastern Nankai Trough, Japan

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract High‐resolution crustal‐scale seismic imaging from long‐offset ocean‐bottom seismometer (OBS) data using full‐waveform inversion (FWI) remains challenging because the large number of propagated wavelengths and waveform complexity make the inversion highly sensitive to time‐shift errors (cycle skipping). To mitigate this nonlinearity, we assess
Gaoshan Guo, Stéphane Operto, Jean‐Xavier Dessa   +2 more
wiley   +1 more source

From tomographic images to fault heterogeneities

Annals of Geophysics, 1994
Local Earthquake Tomography (LET) is a useful tool for imaging lateral heterogeneities in the upper crust. The pattern of P- and S-wave velocity anomalies, in relation to the seismicity distribution along active fault zones.
A. Amato, C. Chiarabba
doaj   +1 more source

Seismic Versus Sub‐Seismic Experimental Mirror‐Like Fault Surfaces in Bituminous Dolostones

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract Mirror‐like Surfaces (MSs) are ultra‐polished surfaces frequently found in exhumed seismogenic fault zones in carbonates. They form over a wide range of pressure‐temperature conditions and slip rates, from seismic (≈1 m/s) to sub‐seismic (≈0.1–100 μm/s), reflecting distinct phases of the seismic cycle.
M. Chinello, S. Aretusini, E. Spagnuolo, J. Nava, T. Tesei, M. Fondriest, G. Di Toro   +6 more
wiley   +1 more source

InSAR coseismic deformation field and seismogenic structure of the 2020 Mw6.0 Jiashi earthquake and the implication for the moderate-magnitude seismicity in the southwestern Tian Shan, western China

Frontiers in Earth Science
The Kepingtage fold-and-thrust belt in the southwestern Tian Shan in western China hosted the 2020 Mw 6.0 Jiashi earthquake with no apparent surface ruptures.
Danruo Wu, Zhidan Chen, Mikhail Zimin
doaj   +1 more source