Results 81 to 90 of about 233,194 (206)

Long-Term Earthquake Prediction by S. A. Fedotov for the Kuril–Kamchatka Arc and the Kamchatka Megathrust Earthquake of July 29, 2025. Review

Russian Journal of Earth Sciences
On July 29, 2025, an earthquake with a moment magnitude of MW = 8.8 occurred in the Kuril–Kamchatka Trench to the east of Petropavlovsk-Kamchatsky. This earthquake ranks among the ten strongest instrumentally recorded seismic events in the world. For the
Gvishiani Alexei, Gliko Alexander, Dzeboev Boris, Dzeranov B., Kedrov Ernest   +4 more
doaj   +1 more source

Identifying the Greatest Earthquakes of the Past 2000 Years at the Nehalem River Estuary, Northern Oregon Coast, USA

Open Quaternary, 2020
We infer a history of three great megathrust earthquakes during the past 2000 years at the Nehalem River estuary based on the lateral extent of sharp (≤3 mm) peat-mud stratigraphic contacts in cores and outcrops, coseismic subsidence as interpreted from ...
Alan R. Nelson, Andrea D. Hawkes, Yuki Sawai, Simon E. Engelhart, Rob Witter, Wendy C. Grant-Walter, Lee-Ann Bradley, Tina Dura, Niamh Cahill, Ben Horton   +9 more
doaj   +1 more source

Structural Heterogeneity Shapes Segmentation of Megathrust Earthquakes and Volcanism in Central America

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The mechanisms underlying the patchy distribution of forearc megathrust earthquakes and arc volcanoes in subduction zones remain poorly understood. Here we present a high‐resolution seismic tomographic model of the Central American subduction zone, derived from a joint inversion of local body‐wave and teleseismic Rayleigh‐wave data.
Junhao Zhang, Xin Liu, Dapeng Zhao, Yibo Zang   +3 more
wiley   +1 more source

Stress, rigidity and sediment strength control megathrust earthquake and tsunami dynamics

, 2020
Megathrust faults host the largest earthquakes on Earth which can trigger cascading hazards such as devastating tsunamis. Determining characteristics that control subduction zone earthquake and tsunami dynamics is critical to mitigate megathrust hazards,
Elizabeth Madden, Alice-Agnes Gabriel, Madden, Elizabeth, Thomas Ulrich, Gabriel, Alice-Agnes, Ulrich, Thomas   +5 more
core   +1 more source

3D Subduction Interface Model for the Hikurangi Margin, New Zealand: Implications for Slow Slip Events

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract We present a new 3D Hikurangi subduction interface model by using an implicit modeling approach that integrates seismic‐reflection profiles, relocated hypocenters, focal mechanism orientations, and tomographic interpretations. The model reveals along‐strike transitions in slow slip events (SSEs) that correlate with subduction interface ...
Haoran Ma, Maomao Wang, Andreas Plesch, Fuyuan Wang, Renqi Lu   +4 more
wiley   +1 more source

Chilean megathrust earthquake recurrence linked to frictional contrast at depth [PDF]

, 2018
Fundamental processes of the seismic cycle in subduction zones, including those controlling the recurrence and size of great earthquakes, are still poorly understood.
Li, S., J. C. Baez, A. Tassara, S. Li, M. Motagh, S. Metzger, C. Sippl, Melnick, D., Contreras Reyes, Eduardo, Baez, J. C., D. Melnick, B.D. Gutknecht, S. Vajedian, Motagh, M., Sippl, C., Oncken, O., J. R. Bedford, Vajedian, S., Metzger, S., Moreno, M., E. Contreras-Reyes, Z. Deng, O. Oncken, Bedford, J. R., Tassara, A., Gutknecht, B. D., Deng, Z., M. Moreno   +27 more
core   +1 more source

Large fault slip peaking at trench in the 2011 Tohoku-oki earthquake

Nature Communications, 2017
The 2011 Tohoku-oki earthquake slip occurred on the shallowest part of the megathrust, but the nature of the shallow slip has been poorly constrained. Here, the authors model bathymetry differences before and after the earthquake to determine that the ...
Tianhaozhe Sun, Kelin Wang, Toshiya Fujiwara, Shuichi Kodaira, Jiangheng He   +4 more
doaj   +1 more source

The 2025 Kamchatka Earthquake and Tsunami: Cascading Impacts and Risks to Japan

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2837-2854, September 2026.
ABSTRACT On July 29th, 2025, a large earthquake (Mw 8.8) occurred near the Kamchatka Peninsula. This event caused a tsunami that reached Japan's Pacific coast, even though the source was far away. In this study, we analyze the characteristics of earthquakes and tsunamis and discuss how they relate to the recurrence possibility and risk in Japan.
Ampan Laosunthara, An‐Chi Cheng, Yo Fukushima, Yoshinori Shigihara, Natt Leelawat, Anawat Suppasri, Fumihiko Imamura   +6 more
wiley   +1 more source

Multi‐Hazard Shaking‐Tsunami Fatality Risk Estimation for Coastal Communities

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2618-2633, September 2026.
ABSTRACT This study develops a multi‐hazard fatality risk model for a coastal community (Tofino) on Vancouver Island, Canada, subjected to earthquake‐tsunami threats from the Cascadia subduction megathrust events. The model incorporates variable population distributions and uncertain fatality rate models, in addition to other key model components, such
Katsuichiro Goda
wiley   +1 more source

Numerical Modelling of Late Pleistocene to Holocene Earthquake‐Induced Progressive Rock Slope Damage in the Paraglacial Serpentine Valley, Prince William Sound, Alaska

Earth Surface Processes and Landforms, Volume 51, Issue 9, September 2026.
Numerical modelling of earthquake‐induced progressive rock slope damage in the paraglacial Serpentine valley, Prince William Sound, Alaska. Repeated seismicity generates rock mass damage that may have conditioned areas of the slope for failure during present‐day ice retreat.
Molly E. McCreary, Jeffrey R. Moore, Erin K. Jensen, Valentin S. Gischig, Dennis M. Staley, Brian D. Collins   +5 more
wiley   +1 more source