Results 71 to 80 of about 5,932 (183)

Dual Role of a Subducted Seamount in Megathrust Rupture Initiation and Rupture Barrier

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Using high‐resolution 3D tomography and a relocated 2010–2022 earthquake catalog, we identify a seamount at 20–25 km depth beneath the Mompiche–Cojimíes region in the coastal forearc of Ecuador. This provides a rare, well‐resolved example of seamount preservation at these depths. The seamount coincides with a low interseismic‐coupling corridor
G. Ponce, A. Meltzer, A. Wickham‐Piotrowski, S. Beck, M. Ruiz, S. Hernández, M. Segovia   +6 more
wiley   +1 more source

Use of the ESI-2007 scale to evaluate the 2003 Boumerdès earthquake (North Algeria)

Annals of Geophysics, 2016
In this study, we applied the environmental seismic intensity (ESI-2007) scale to a major recent Algerian earthquake. The ESI-2007 scale is an effective tool to assess the seismic hazard and has been applied to onshore earthquakes.
Aicha Heddar, Hamoud Beldjoudi, Christine Authemayou, Roza SiBachir, Abdelkrim Yelles-Chaouche, Azzedine Boudiaf   +5 more
doaj   +1 more source

Buried shallow fault slip from the South Napa earthquake revealed by near-field geodesy. [PDF]

, 2017
Earthquake-related fault slip in the upper hundreds of meters of Earths surface has remained largely unstudied because of challenges measuring deformation in the near field of a fault rupture.
Brooks, Benjamin, Dawson, Tim, Ericksen, Todd, Glennie, Craig, Hudnut, Kenneth, Langenheim, Victoria, Lockner, David, Lutz, Andrew, Mareschal, Maxime, Minson, Sarah, Murray, Jessica, Nevitt, Johanna, Rubin, Ron, Schwartz, David, Zaccone, Dana   +14 more
core   +1 more source

Newly Discovered Active Faults in the Wairarapa Valley: Implications for Multi‐Fault Rupture and Kinematics in the Southern North Island, Aotearoa New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
Active fault locations and constraints on the timing and size of earthquakes are important for understanding and mitigating seismic hazard in Aotearoa New Zealand. However, historical and instrumental records are too short to provide these data on most earthquake‐generating faults. Light detection and ranging (lidar) data provide us with the ability to
Genevieve L. Coffey, Nicola J. Litchfield, Regine Morgenstern, Robert M. Langridge, Dougal Townsend   +4 more
wiley   +1 more source

Impact of global seismicity on sea level change assessment

, 2005
We analyze the effect of seismic activity on sealevel variations, by computing the time-dependent vertical crustal movement and geoid change due to coseismic deformations and postseismic relaxation effects.
Melini, D., Piersanti, A.
core   +1 more source

Large‐Scale Deformation, Strain Characteristics, and Locking Distribution of the Qilian‐Haiyuan Fault System

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract The Qilian‐Haiyuan fault system is the main tectonic boundary of the northeastern Tibetan Plateau, controlling the regional tectonic deformation and seismic activity. Extensive Sentinel‐1 SAR data (2014–2021) are used to map the regional tectonic deformation, strain distribution, and locking along primary and secondary faults.
Donglin Wu, Chunyan Qu, Dezheng Zhao, Han Chen, Yilin Rong, Xiaoyi Wang, Xinjian Shan   +6 more
wiley   +1 more source

Asperities and barriers on the seismogenic zone in North Chile: state-of-the-art after the 2007 Mw 7.7 Tocopilla earthquake inferred by GPS and InSAR data [PDF]

, 2010
The Mw 7.7 2007 November 14 earthquake had an epicentre located close to the city of Tocopilla, at the southern end of a known seismic gap in North Chile. Through modelling of Global Positioning System (GPS) and radar interferometry (InSAR) data, we show
A. Delorme, A. Nercessian, A. Socquet, Aki, Allmendinger, Altamimi, ANCORP Working Group, Angermann, Armijo, Baba, Bevis, Bevis, Bilek, Bürgmann, C. Valderas, C. Vigny, Cattin, Cavalié, Chlieh, Chlieh, Cifuentes, Comte, Comte, D. Carrizo, D. Comte, D. Remy, Delouis, Delouis, Delouis, Dorbath, Du, Engdahl, F. Bondoux, F. Ortega, Farr, Fitch, G. Gabalda, Grandin, Gutenberg, Hanssen, Harris, Hayes, Hayes, Heki, Herring, Hsu, Hyndman, I. Ortega, Igarashi, Ihmlé, J. B. de Chabalier, J. C. Ruegg, J. Campos, J. Galetzka, J. Genrich, Jonsson, Kanamori, Kelleher, Khazaradze, King, King, Klotz, Lasserre, Lay, Lohman, Loveless, M. Béjar-Pizarro, M. Olcay, M. Simons, Malgrange, Marone, Massonnet, Melbourne, Menke, Miyazaki, Mogi, Monfret, Nishenko, Norabuena, O. Charade, Okada, Oleskevich, Pacheco, Patzwahl, Perfettini, Peyrat, Pritchard, Pritchard, Pritchard, Pritchard, Puysségur, R. Armijo, Rosen, Rosenbaum, Ruegg, Ruegg, S. Barrientos, S. Bonvalot, Scholz, Scholz, Schwartz, Schwartz, Sella, Song, Suarez, Tarantola, Tichelaar, Vargas, Vigny, Wessel, Árnadóttir, Çakir   +111 more
core   +6 more sources

Application of Singular Spectrum Analysis (SSA) for Delineating Geomagnetic and Lithospheric Signatures Associated With M7.6 Japan Earthquake

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract In this paper, Singular Spectral Analysis (SSA) is applied to the geomagnetic field to delineate signatures from different sources, such as geomagnetic variability and lithospheric processes. We performed SSA on the Y component of the Swarm satellite magnetic field By during the period from September 2023 to January 2024. Eigen values obtained
Amrita Yadav, Jayashree Bulusu, Essam Ghamry, Dedalo Marchetti, A. P. Dimri   +4 more
wiley   +1 more source

Surface-Rupturing Historical Earthquakes in Australia and Their Environmental Effects: New Insights from Re-Analyses of Observational Data

Geosciences, 2019
We digitize surface rupture maps and compile observational data from 67 publications on ten of eleven historical, surface-rupturing earthquakes in Australia in order to analyze the prevailing characteristics of surface ruptures and other environmental ...
Tamarah R. King, Mark Quigley, Dan Clark   +2 more
doaj   +1 more source

Earthquake slip surfaces identified by biomarker thermal maturity within the 2011 Tohoku-Oki earthquake fault zone. [PDF]

, 2020
Extreme slip at shallow depths on subduction zone faults is a primary contributor to tsunami generation by earthquakes. Improving earthquake and tsunami risk assessment requires understanding the material and structural conditions that favor earthquake ...
Kirkpatrick, James D, Polissar, Pratigya J, Rabinowitz, Hannah S, Rowe, Christie D, Savage, Heather M   +4 more
core