Results 71 to 80 of about 233,194 (206)

Lineaments and earthquake ruptures on the East Japan megathrust [PDF]

Lithosphere, 2018
In this paper we describe the earthquake geology of East Japan, based on a seismotectonic analysis of foreshocks and aftershocks for the 2011 Tohoku-oki Great Earthquake. The earthquake geology is defined by three compressional buttresses that are separated by channels dominated by extensional earthquakes. In the 2011 earthquake sequence, most activity
Gordon Lister, Hrvoje Tkalčić, Babak Hejrani, Achraf Koulali, Eelco Rohling, Marnie Forster, Simon McClusky   +6 more
openaire   +4 more sources

Dimensionality Reduction Techniques for Analyzing Tsunami Simulations in Hazard Assessment and Forecasting Applications

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract A wide selection of linear and non‐linear dimensionality reduction techniques is evaluated on synthetic tsunami data that is the basis for tsunami hazard assessment and computational forecasting. The data were computed from earthquake rupture forecasts (ERFs) supplying initial generation conditions and a linear long‐wave Green's function ...
Eric L. Geist, Tom Parsons
wiley   +1 more source

Earthquake and Tsunami Scenarios as Basic Information to Prepare Next Nankai Megathrust Earthquakes

, 2017
This paper describes earthquake and tsunami scenarios as basic information for preparing for the next Nankai megathrust earthquakes. Models to clarify the size of the Nankai megathrust earthquake and changes in occurrence intervals, simulations using ...
Takane Hori, null null
core   +1 more source

Variability of megathrust earthquakes in the world revealed by the 2011 Tohoku-oki Earthquake [PDF]

Earth, Planets and Space, 2012
The seismicity of the Pacific coast of Tohoku, Japan, has been investigated in detail and characterized into regional seismic segments. The 2011 megathrust earthquake of Mw 9.0 on 11 March ruptured almost all of the segments in that area, causing devastating tsunamis. The prime factor that had not been recognized before is the double segmentation along
Koyama, Junji, Yoshizawa, Kazunori, Yomogida, Kiyoshi, Tsuzuki, Motohiro   +3 more
openaire   +2 more sources

A Multi‐Region Deep Learning Framework for Low‐Frequency Earthquake Detection: Application to the Guerrero Seismic Gap

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Low‐frequency earthquakes (LFEs) provide key constraints on slow earthquake processes but remain difficult to detect because of their low signal‐to‐noise ratios (SNR) and emergent onsets, particularly in offshore environments where seismic networks are sparse.
Yanhan Chen, Yoshihiro Ito
wiley   +1 more source

Quantifying the Role of 3D Fault Geometry Complexities on Slow and Fast Earthquakes

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Traditional models of slow slip events (SSEs) oversimplify fault geometry, although imaging shows subduction faults are segmented and complex. We examine how fault interactions control slip behavior using 3D quasi‐dynamic simulations of two parallel faults with uniform rate‐weakening friction accelerated by hierarchical matrices.
J. Cheng, H. S. Bhat, M. Almakari, B. Lecampion, P. Dubernet   +4 more
wiley   +1 more source

Importance of forearc topography for the triggering of aftershocks of megathrust earthquakes: insights from mechanical models and the Tohoku-Oki and Maule earthquakes [PDF]

Solid Earth
Aftershocks of megathrust earthquakes at subduction zones may be driven by stresses arising from the topography of the forearc. However, the effect of topographic stresses on aftershock triggering is quantitatively not well understood and has been ...
A. Dielforder, A. Dielforder, G. M. Bocchini, A. Hampel   +3 more
doaj   +1 more source

Fault Slip Reversals Preceded the Intraplate 2021 Earthquake Series in the Vienna Basin (Central Europe)

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Fault‐slip reversals indicate transient stress changes and may illuminate earthquake preparation processes. Here we present high‐resolution observations of sub‐millimetric creep and slip reversals on the Altaquelle Fault, a Quaternary normal fault in the southern Vienna Basin, preceding a regionally significant intraplate earthquake sequence ...
I. Baroň, J. Jelének, M. Rowberry, R. Melichar, M. del Puy Papí‐Isaba, R. Schultz, J. Balek, J. Stemberk, Ľ. Sokol, H. Hausmann, L. Plan, G. Winkler, B. Grasemann, R. Bürgmann   +13 more
wiley   +1 more source

Interseismic Coupling Along the Java‐Timor Subduction‐Collision Zone at East Indonesia

Geophysical Research Letters
The Java‐Timor subduction‐collision zone is one of the most tectonically complicated structures along the strike of the Indonesia‐Australia convergence. This complexity makes it difficult to interpret observations of interseismic deformation.
Siyuan Zhao, Phil R. Cummins, Simon McClusky, Meghan S. Miller   +3 more
doaj   +1 more source

Along‐Strike Coupling Heterogeneity in Cascadia's Slow‐Slip Zone Constrained by GNSS and Reduced‐Order Rate‐And‐State Friction Modeling

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Slow slip events (SSEs) in the Cascadia subduction zone exhibit along‐strike segmentation, where the central segment has longer recurrence intervals but smaller moments. We quantify the controls on this variability by combining geodetic inter‐SSE coupling inversion with Bayesian inference of a quasi‐dynamic rate‐and‐state friction SSE‐cycle ...
Yohai Magen, Alice‐Agnes Gabriel, Dave A. May   +2 more
wiley   +1 more source