Results 101 to 110 of about 1,235 (207)

Dual Role of a Subducted Seamount in Megathrust Rupture Initiation and Rupture Barrier

Geophysical Research Letters
Using high‐resolution 3D tomography and a relocated 2010–2022 earthquake catalog, we identify a seamount at 20–25 km depth beneath the Mompiche–Cojimíes region in the coastal forearc of Ecuador.
G. Ponce, A. Meltzer, A. Wickham‐Piotrowski, S. Beck, M. Ruiz, S. Hernández, M. Segovia   +6 more
doaj   +1 more source

Tectonics and Sliver Motion in Costa Rica: Strain Partitioning Constrained by GNSS Velocities Data

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract The tectonic deformation of Costa Rica is controlled by the subduction of the Cocos Plate beneath the Caribbean Plate and the Panama microplate along the Middle America Trench, with oblique convergence in northern Costa Rica to 2024 from 154 permanent stations distributed across Costa Rica to derive for the first time spatially continuous ...
P. Boymond, C. Muller, M. Protti, E. Chaves   +3 more
wiley   +1 more source

Performance of Slab Geometry Constraints on Rapid Geodetic Slip Models, Tsunami Amplitude, and Inundation Estimates in Cascadia

Seismica
Tsunamigenic megathrust earthquakes along the Cascadia subduction zone present a major hazard concern. We can better prepare to model the earthquake source in a rapid manner by imbuing fault geometry constraints based on prior knowledge and by ...
Kevin Kwong, Brendan Crowell, Amy Williamson, Diego Melgar, Yong Wei   +4 more
doaj   +1 more source

How the Transition Region Along the Cascadia Megathrust Influences Coseismic Behavior: Insights From 2‐D Dynamic Rupture Simulations

Geophysical Research Letters, 2019
There is a strong need to model potential rupture behaviors for the next Cascadia megathrust earthquake. However, there exists significant uncertainty regarding the extent of downdip rupture and rupture speed.
Marlon D. Ramos, Yihe Huang
doaj   +1 more source

Progress in modeling the Tohoku-oki megathrust earthquake cycle and associated crustal deformation processes

, 2023
This paper summarizes the results of 10 years of research on models of the megathrust earthquake cycles and crustal deformation associated with the 2011 Tohoku-oki earthquake.
Bunichiro Shibazaki
core   +1 more source

Multi-parameter GNSS analysis reveals atmospheric, ionospheric and crustal precursors seven days before the 2016 Mw 7.8 Ecuador megathrust earthquake

In this study, the atmospheric, ionospheric and crustal precursors of the Mw 7.8 Ecuador megathrust earthquake of April 16, 2016 is examined using comprehensive multiparameter GNSS analysis.
Pırtı, Atınç, Karatay, Secil
core   +1 more source

Monitoring Megathrust-Earthquake-Cycle-Induced Relative Sea-Level Changes near Phuket, South Thailand, Using (Space) Geodetic Techniques

, 2022
Temporal changes in vertical land motion (VLM) in and around Phuket Island in southern Thailand following the great 2004 Sumatra–Andaman megathrust earthquake have impacted the relative sea-level change estimates based on tide-gauge (TG) records ...
Sommart Niemnil, Niemnil, Sommart (author), Thongtham, Nalinee, Nalinee Thongtham, Naeije, M.C. (author), Niemnil, Sommart, Noppradit, Prakrit (author), Noppradit, Prakrit, Simons, W.J.F., Pradit, Siriporn, Wim J. F. Simons, Simons, W.J.F. (author), Bin Mustafar, M.A., Marc C. Naeije, Bin Mustafar, M.A. (author), Naeije, M.C., Mohamad A. Mustafar, Siriporn Pradit, Pradit, Siriporn (author), Prakrit Noppradit, Thongtham, Nalinee (author)   +20 more
core   +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

Generating tsunami risk knowledge at community level as a base for planning and implementation of risk reduction strategies [PDF]

, 2010
More than 4 million Indonesians live in tsunami-prone areas along the southern and western coasts of Sumatra, Java and Bali. Although there now exists a Tsunami Early Warning Center in Jakarta, installed after the devastating 2004 tsunami, it is ...
K. Zosseder, S. Wegscheider, Strunz, Günter, Wegscheider, Stephanie, J. Post, A. Muhari, Post, Joachim, Mück, Matthias, Gebert, Niklas, Riedlinger, Torsten, Muhari, Abdul, H. Z. Anwar, Anwar, Herryal Z., G. Strunz, T. Riedlinger, Zosseder, Kai, M. Mück   +16 more
core   +1 more source

Detection of Shallow Tectonic Tremors in Hyuga‐nada, Nankai Trough, Using the Newly Established N‐Net OBS Network

Geophysical Research Letters
Monitoring tectonic tremors is crucial for understanding stress release in subduction zones and assessing megathrust earthquake risk. The Hyuga‐nada region, at the western edge of the Nankai Trough, Japan, provides a natural laboratory for investigating ...
Kodai Sagae, Masayuki Kano, Suguru Yabe, Takahiko Uchide   +3 more
doaj   +1 more source