Results 51 to 60 of about 3,269 (209)

Tsunami Traveling Ionospheric Disturbances Triggered by the 29 July 2025 Mw 8.8 Kamchatka Earthquake Observed in Japan and Taiwan

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The 29 July 2025 Mw 8.8 Kamchatka earthquake generated notable seismic and tsunami waves. The total electron content (TEC) derived by more than 1,400 ground‐based global navigation satellite system (GNSS) receiving stations in Japan and Taiwan is employed to examine the spatiotemporal evolution of seismic‐ and tsunami‐traveling ionospheric ...
Chun‐Yen Huang, Jann‐Yenq Liu, Chi‐Yen Lin, Tatsuhiro Yokoyama, Kenji Satake, Tien‐Chi Liu, Tung‐Yuan Hsiao, Charles Chien‐Hung Lin, Chia‐Hung Chen   +8 more
wiley   +1 more source

Hydrous oceanic crust hosts megathrust creep at low shear stresses [PDF]

, 2020
The rheology of the metamorphosed oceanic crust may be a critical control on megathrust strength and deformation style. However, little is known about the strength and deformation style of metamorphosed basalt.
Ujiie, Kohtaro, Tulley, Christopher J., Fagereng, Åke   +2 more
core   +1 more source

Evolution of Coupled Seismic‐Aseismic Slip During the 2025 Mw 6.8 Sanriku‐Oki, Japan, Megathrust Sequence

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract On 9 November 2025, a Mw 6.8 Sanriku‐Oki earthquake struck a Japan Trench segment with inferred recurrent aseismic slip and Mw ∼7 earthquakes. Using S‐net seafloor data, we examine the preparatory and post‐mainshock evolution of this foreshock–mainshock–aftershock sequence.
Keisuke Yoshida
wiley   +1 more source

Interseismic Coupling and Slow Slip Events on the Cascadia Megathrust

, 2019
In this study, we model geodetic strain accumulation along the Cascadia subduction zone between 2007.0 and 2017.632 using position time series from 352 continuous GPS stations.

core   +1 more source

20^th-century strain accumulation on the Lesser Antilles megathrust based on coral microatolls

, 2022
International audienceThe seismic potential of the Lesser Antilles megathrust remains poorly known, despite the potential hazard it poses to numerous island populations and its proximity to the Americas.
Saurel, Jean-Marie, Guihou, Abel, Anglade, André, Jacques, Eric, Feuillet, Nathalie, Mériaux, Anne-Sophie, Philibosian, Belle, Weil-Accardo, Jennifer, Deroussi, Sébastien   +8 more
core   +1 more source

Does Three‐Dimensional Structure Affect Tsunami Excitation and Stress Drop Estimates?—The Case of the 2011 Tohoku Earthquake

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Reliable calculations of coseismic sea‐surface deformation and stress drop are essential for understanding megathrust earthquake rupture and tsunami behavior. However, the impacts of realistic three‐dimensional (3D) structure, such as seafloor topography and structural heterogeneity, on stress‐change calculations and tsunami excitation during ...
Tatsuya Kubota, Tatsuhiko Saito
wiley   +1 more source

Seismicity and seismic imaging of the Alaska megathrust fault

, 2016
The largest earthquakes and the majority of the seismic energy are released on megathrust faults in subduction zones. The goal of this dissertation is to characterize the seismic behavior, structural and physical properties of the megathrust fault, so ...
Li, Jiyao
core   +2 more sources

20th-century strain accumulation on the Lesser Antilles megathrust based on coral microatolls [PDF]

, 2022
\ua9 2021The seismic potential of the Lesser Antilles megathrust remains poorly known, despite the potential hazard it poses to numerous island populations and its proximity to the Americas.
Weil-Accardo J, Philibosian B, Guihou A, Saurel J-M, Jacques E, Anglade A, Feuillet N, Deroussi S, Meriaux A-S   +8 more
core  

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

Block Kinematics, Interseismic Coupling and Fault Slip Rates in the Aegean Region From GPS and Earthquake Slip Vector Data: 2. Hellenic Subduction System

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract The Hellenic subduction system is the primary locus of Nubia‐Eurasia convergence, yet the distribution of strain accumulation along it is still debated. Here, we invert 832 geodetic velocities and 146 earthquake slip vectors to assess the spatial variability of interseismic locking and provide new constraints on the rate of slip deficit ...
Konstantinos Chousianitis, Volkan Özbey, Sotiris Sboras, Robert McCaffrey, Semih Ergintav   +4 more
wiley   +1 more source