Results 61 to 70 of about 9,577 (155)

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

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract 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 links among slow earthquakes, megathrust events, and complex subduction structures.
Kodai Sagae, Masayuki Kano, Suguru Yabe, Takahiko Uchide   +3 more
wiley   +1 more source

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

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract 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. This provides a rare, well‐resolved example of seamount preservation at these depths. The seamount coincides with a low interseismic‐coupling corridor
G. Ponce, A. Meltzer, A. Wickham‐Piotrowski, S. Beck, M. Ruiz, S. Hernández, M. Segovia   +6 more
wiley   +1 more source

Accurate Redetermination of the Focal Depth by Using the Time Intervals between the Inner Core Phases PKIKP and pPKIKP

Applied Sciences, 2022
The hypocenter parameters of an earthquake may give us an insight into the Earth’s structure and tectonic processes. Among the hypocenter parameters, the focal depth is normally more difficult to estimate than the earthquake location (latitude and ...
Chuan Li, Wenqi Gao, Youxue Wang, Songping Yu   +3 more
doaj   +1 more source

Earthquake Hypocenter data base available

Eos, Transactions American Geophysical Union, 1971
A magnetic tape containing hypocenter data for 40,000 earthquakes from January 1961 through August 1970 is now available from NOAA's National Geophysical Data Center. These data were used by the National Ocean Survey (formerly Coast and Geodetic Survey) to produce World and Regional Seismicity Maps.
openaire   +1 more source

Effects of Fault Dip and Slip Rake Angles on Near-Source Ground Motions: Why Rupture Directivity Was Minimal in the 1999 Chi-Chi, Taiwan, Earthquake [PDF]

, 2004
We study how the fault dip and slip rake angles affect near-source ground velocities and displacements as faulting transitions from strike-slip motion on a vertical fault to thrust motion on a shallow-dipping fault.
Aagaard, Brad T., Hall, John F., Heaton, Thomas H.   +2 more
core   +1 more source

Fault Stability Assessment in Tectonically Active Geothermal Fields Through Integrated Stress Analysis

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.
Abstract The Tulu Moye geothermal field in the actively deforming Main Ethiopian Rift presents substantial potential for renewable energy production, where interactions between fault systems, hydrothermal fluids, and tectonic activity require careful management for sustainable development. Here we present a first‐order assessment of fault stability and
Roberto Emanuele Rizzo, Derek Keir, Ameha Muluneh, Snorri Guðbrandsson, David Healy, Federico Sani, Giacomo Corti, Paola Vannucchi   +7 more
wiley   +1 more source

Limiting the effects of earthquakes on gravitational-wave interferometers

, 2017
Ground-based gravitational wave interferometers such as the Laser Interferometer Gravitational-wave Observatory (LIGO) are susceptible to high-magnitude teleseismic events, which can interrupt their operation in science mode and significantly reduce the ...
Biscans, Sebastien, Buchanan, Christopher, Coughlin, Eric, Coughlin, Michael, Donovan, Fred, Earle, Paul, Fee, Jeremy, Gabbard, Hunter, Guy, Michelle, Harms, Jan, Mukund, Nikhil, Perry, Matthew   +11 more
core   +1 more source

Seismotectonic study of the Fergana region (Southern Kyrgyzstan): distribution and kinematics of local seismicity [PDF]

, 2015
We present new seismicity and focal-mechanism data for the Fergana basin and surrounding mountain belts in western Kyrgyzstan from a temporary local seismic network.
Abdybachaev, U., Feld, Christian, Haberland, Christian, Ickrath, Michèle, Orunbaev, Sagynbek, Roessner, Sigrid, Schurr, Bernd, Sippl, Christian, Wetzel, Hans-Ulrich   +8 more
core   +2 more sources

Stress and Strain in Magma‐Mush Reservoirs: Implications for Reservoir Failure and Magma Propagation

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Investigating the mechanical stability and failure of magma reservoirs following magma supply is critical for volcanic hazard assessment. While magma reservoirs were traditionally modeled as melt‐filled cavities, they are now more often described as crystal mushes where melt flows and is stored in porous networks.
L. Mantiloni, J. Hickey, R. Alshembari
wiley   +1 more source

Analysis of Hypocenter Position of Bengkulu Earthquake on April 15, 2023 Using 2D and 3D Grid Search Method Based on USGS Data

Jurnal Fisika Flux
Earthquakes are natural events that can have serious impacts on human life and the environment. This study aims to improve the accuracy of earthquake hypocenter determination by applying the 2D dan 3D Grid Search method to seismic data recorded by three ...
Firdos Bahar Sidik, Savira Zahrul Khumairo, Farizki Budi Pangestu, Triya Illmi Sakinah, Muhamad Raihan Putra Febrian, Risaldi Fauzan Laksono, Jihan Syafina Nasution   +6 more
doaj   +1 more source