Results 51 to 60 of about 7,906 (216)

The 2025 Mw 8.8 Kamchatka Megathrust: A Rapid Recurrence With Complex Heterogeneous Rupture

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract On 29 July 2025, a Mw 8.8 earthquake struck Kamchatka, ∼50 km from the 1952 Mw 9.0 megathrust hypocenter, exhibiting a comparable aftershock zone. We resolve the kinematic rupture process and slip distribution by combining teleseismic waveforms with high‐quality tsunami data.
Junpeng Li, Zhe Jia
wiley   +1 more source

Structural Controls on Splay Fault Rupture Dynamics During Cascadia Megathrust Earthquakes

AGU Advances
Great subduction earthquakes (Mw ≥ 8.0) can generate devastating tsunamis by rapidly displacing the seafloor and overlying water column. These potentially tsunamigenic seafloor offsets result from coseismic fault slip and deformation beneath or within ...
J. Biemiller, A.‐A. Gabriel, L. Staisch, T. Ulrich, A. Dunham, E. Wirth, J. Watt, M. C. Lucas, A. Ledeczi   +8 more
doaj   +1 more source

Deep lithospheric structures along the southern central Chile Margin from wide-angle P-wave modellilng [PDF]

, 2009
Crustal- and upper-mantle structures of the subduction zone in south central Chile, between 42 degrees S and 46 degrees S, are determined from seismic wide-angle reflection and refraction data, using the seismic ray tracing method to calculate minimum ...
A. Krabbenhoeft, Angermann, Bangs, Barrientos, Behrmann, Behrmann, Bialas, Bourgois, Brasse, Bry, C. J. Petersen, C. Papenberg, Cande, Cifuentes, Cisternas, Contreras-Reyes, Contreras-Reyes, Contreras-Reyes, Currie, DeMets, E. Contreras-Reyes, E. R. Flueh, Farr, Fischer, Flueh, Flueh, Gonzalez, Grevemeyer, Grevemeyer, Grevemeyer, Gross, Haberland, Hackney, Heesemann, Hyndman, I. Grevemeyer, Ivandic, Kapinos, Kirby, Krawczyk, Lange, Lefeldt, M. Scherwath, Melnick, Melnick, Mordohovich, Oleskevich, R. W. Weinrebe, Ranero, Ranero, Ranero, Ranero, Rietbrock, Roeser, Scherwath, Scholl, Song, Stein, Takahashi, Tassara, Taylor, Tebbens, Thierer, Tilmann, Voelker, Voelker, von Huene, Wessel, White, Yanez, Zelt, Zelt, Zelt, Zelt   +73 more
core   +1 more source

Stress Field and Megathrust Strength in the Western Hellenic Subduction System: Insights From the 2024 Mw 5.9 Strofades Earthquake Sequence, Greece

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract A M5.9 earthquake occurred on 29 March 2024, offshore near the Strofades Islands, in the western Hellenic Subduction System. Here we present high‐precision earthquake locations and focal mechanisms that suggest the rupture of a NNE‐SSW striking, left‐lateral strike‐slip fault.
G. M. Bocchini, D. Essing, I. Nikolopoulou, A. Dielforder, M. P. Roth, A. Serpetsidaki, E. Sokos, C. P. Evangelidis, R. M. Harrington   +8 more
wiley   +1 more source

Slip inversion along inner fore-arc faults, eastern Tohoku, Japan [PDF]

, 2017
The kinematics of deformation in the overriding plate of convergent margins may vary across timescales ranging from a single seismic cycle to many millions of years.
Fisher, Donald M., Kirby, Eric, Oakley, David, Regalla, Christine, Taylor, Stephanie   +4 more
core   +2 more sources

Evaluation of Earthquake‐Induced Slope Displacements in Greater Vancouver Based on Probabilistic Framework and Using NBCC 2020 and EqDisp Code Platform

Earthquake Spectra, Volume 42, Issue 2, May 2026.
Engineers frequently use simplified seismic slope displacement procedures to evaluate the performance of earth structures and natural slopes. Current practices typically adopt Newmark‐type and semi‐empirical seismic displacement prediction models (SDPMs) to estimate the seismic slope displacements (D) based on ground motion intensity measures at a ...
Ali Fallah Yeznabad, Karen Assatourians, Hesham El Naggar, Sheri Molnar   +3 more
wiley   +1 more source

Seismic Stratigraphy and Tectonic Evolution of the Forearc Georgia Basin (Upper Cretaceous–Miocene), Canada and USA, With Implications for CO2 Sequestration

Basin Research, Volume 38, Issue 3, May–June 2026.
2D seismic and well data reveal multi‐phase basin filling in the Whatcom Sub‐Basin shaped by syn‐depositional tectonism. An Eocene transition from forearc basin to forearc depression corresponds to decreasing normal‐fault density and throw, both upsection and eastward. Paleogene–Neogene strata are the best CO2 storage targets.
Francyne Bochi do Amarante, Shahin E. Dashtgard, Maziyar Nazemi, Andrew J. Calvert, H. Daniel Gibson   +4 more
wiley   +1 more source

The Sanriku-Oki low-seismicity region on the northern margin of the great 2011 Tohoku-Oki earthquake rupture [PDF]

, 2012
We examine a region of the megathrust fault offshore of northeastern Honshu (38.75°–40.25°N, 141.5°–143.25°E) that we designate as the Sanriku-Oki low-seismicity region (SLSR). The SLSR, located near the northern termination of the 2011 Tohoku-Oki (M_w 9.
Kanamori, Hiroo, Lay, Thorne, Ye, Lingling   +2 more
core   +1 more source

Global variations of large megathrust earthquake rupture characteristics [PDF]

Science Advances, 2018
Regional patterns of large earthquake rupture complexity are revealed by a new measure, REEF (radiated energy enhancement factor).
Lingling Ye, Hiroo Kanamori, Thorne Lay
openaire   +4 more sources

Characteristics of Seismic Energy Rate Functions of Shallow Tremors

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract We investigated the energy rate functions of shallow tremors southeast of the Kii Peninsula in the Nankai subduction zone. Unimodal functions (triangle or bell‐shaped) explain the characteristics of small (<104 J) shallow tremors. As the seismic radiated energy increases, the energy rate functions become more complex and are better ...
Shunsuke Takemura, Suguru Yabe
wiley   +1 more source