Results 71 to 80 of about 7,906 (216)
Stress transfer and strain rate variations during the seismic cycle [PDF]
, 2004 The balance of forces implies stress transfers during the seismic cycle between the elastobrittle upper crust and the viscoelastic lower crust. This could induce observable time variations of crustal straining in the interseismic period.
Avouac, J.-P., Perfettini, H.
core +2 more sources
Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract The July 2025 Kamchatka earthquake (Mw 8.8) generated Pacific‐wide tsunamis. Inversion of 40 DART bottom pressure records revealed a large (∼9 m) slip at 200–400 km southwest of the epicenter. This model reproduces the local geodetic data, and is similar to other finite fault models based on teleseismic and geodetic data. Inversion of the tide
Yushiro Fujii, Kenji Satake
wiley +1 more source
Geophysical Research LettersWe investigate the relationship between the seismogenic behavior of global megathrusts and various subduction parameters. We performed a parametric approach by implementing three decision tree‐based Machine Learning (ML) algorithms to predict the b‐value
Lucas Crisosto, Andrés Tassara
doaj +1 more source
Nucleation process of the 2011 northern Nagano earthquake from nearby seismic observations
Scientific Reports, 2021 The 2011 magnitude (M) 9.0 Tohoku-oki earthquake was followed by seismicity activation in inland areas throughout Japan. An outstanding case is the M6.2 Northern Nagano earthquake, central Japan, occurred 13-h after the megathrust event, approximately ...
Kengo Shimojo +3 more
doaj +1 more source
Uplift and subsidence associated with the great Aceh-Andaman earthquake of 2004 [PDF]
, 2006 Rupture of the Sunda megathrust on 26 December 2004 produced broad regions of uplift and subsidence. We define the pivot line separating these regions as a first step in defining the lateral extent and the downdip limit of rupture during that great M_w ≈
Abrams, Michael +6 more
core +1 more source
Asthenosphere Flow Modulated by Megathrust Earthquake Cycles [PDF]
Geophysical Research Letters, 2018 Abstract Subduction megathrusts develop the largest earthquakes, often close to large population centers. Understanding the dynamics of deformation at subduction zones is therefore important to better assess seismic hazards. Here I develop consistent earthquake cycle simulations that incorporate localized and distributed deformation ...
openaire +4 more sources
Seamount Subduction and Megathrust Seismicity: The Interplay Between Geometry and Friction
Geophysical Research Letters, 2023 AbstractSubducting seamounts are recognized as one of the key features influencing megathrust earthquakes. However, whether they trigger or arrest ruptures remains debated. Here, we use analog models to study the influence of a single seamount on megathrust earthquakes, separating the effect of topography from that of friction.
Menichelli, I. +5 more
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Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.Abstract Understanding the cause of spatial variations in seismicity is crucial for comprehending the physics governing earthquake activity. Off Iwate, in the northern Japan Trench subduction zone, the plate boundary can be divided into three distinct zones based on depth‐dependent slip regimes: the slow earthquake, asperity, and stable creeping zones.
Yuta Ito +4 more
wiley +1 more source
Volcanic Subsidence Triggered by Megathrust Earthquakes
Journal of Disaster Research, 2014 Studies using spaceborne interferometric synthetic aperture radar (InSAR) analysis showed that two megathrust earthquakes – the 2011Mw9.0 Tohoku-oki earthquake in Japan and the 2010Mw8.8Maule earthquake in Chile – triggered unprecedented subsidence in multiple volcanoes. There are strong similarities in the characteristics of the surface deformation in
Youichiro Takada, Yo Fukushima
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Rupture characteristics of major and great (M_w ≥ 7.0) megathrust earthquakes from 1990 to 2015: 1. Source parameter scaling relationships [PDF]
, 2016 Source parameter scaling for major and great thrust-faulting events on circum-Pacific megathrusts is examined using uniformly processed finite-fault inversions and radiated energy estimates for 114 M_w ≥ 7.0 earthquakes. To address the limited resolution
Kanamori, Hiroo +3 more
core +3 more sources