Results 41 to 50 of about 1,209 (179)

Seismic Tremor as a Precursor to Hydrothermal Explosions Near Mutnovsky Volcano (Kamchatka)

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Mutnovsky Volcano, ∼70 km SW of Petropavlovsk‐Kamchatsky, exhibits persistent degassing, hosts active hydrothermal springs and the Mutnovsky Geothermal Power Plant (MGPP) on its slopes. Using the network covariance matrix approach, we analyzed seismic data recorded in 2023–2024 by 15 seismic stations operating around Mutnovsky Volcano.
Y. Berezhnev, N. Belovezhets, N. M. Shapiro, S. Abramenkov, I. Abkadyrov, S. Yaskevich, D. Chebrov, I. Koulakov   +7 more
wiley   +1 more source

SUMEDANG EARTHQUAKE RELOCATION PERIOD DECEMBER 31, 2023 – JANUARY 4, 2024 USING DOUBLE DIFFERENCE METHOD

Jurnal Neutrino: Jurnal Fisika dan Aplikasinya
On December 31, 2023, an earthquake occurred in Sumedang with a magnitude of M=4.8. The location of the epicenter is at coordinates 6.85'S and 107.94'E, or precisely on land at a distance of 2 km northeast of the center of Sumedang City, with a ...
Ninda Maftuha, Tati Zera, Mochamad NurFaizi   +2 more
doaj   +1 more source

Comparison of Seismic Performance Assessment Using Observed or Simulated Ground Motions in Seismic Hazard Analysis and Ground Motion Selection

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 10, Page 2449-2465, August 2026.
ABSTRACT This paper illustrates opportunities for the use of simulated ground motions in seismic performance assessment – from seismic hazard, ground‐motion selection, response history analysis, and seismic demand hazard calculation. The illustration is through a comparative analysis with the conventional alternative of observed ground motions.
Vahid Loghman, Brendon A. Bradley, Claudio Schill   +2 more
wiley   +1 more source

Relocation Study of Flores Sea Hypocenter (Mw = 7.3) Based on Single Station Estimation Using ObsPy

JGEET: Journal of Geoscience, Engineering, Environment and Technology
One area in Indonesia that is prone to disasters is the Flores Sea area, which has the potential for earthquakes to trigger tsunamis. This is due to the location of Flores, which is in a subduction zone that originates from the collision of the Indo ...
Azmi Khusnani, Ade Anggraini, Adi Jufriansah, Zulfakriza Zulfakriza, Yudhiakto Pramudya, Margiono, Konsenius Wiran Wae   +6 more
doaj   +1 more source

Micro-seismic source location algorithm based on spatio-temporal distribution of arrival times

Meikuang Anquan, 2023
In order to improve the precision of the micro-seismic hypocenter location and the robustness of algorithms, the objective function construction and spatiotemporal region information use of the location algorithm based on time are studied. The simulation
LI Minghu, CHEN Wei, CAI Xun
doaj   +1 more source

Fault‐controlled uplift segmentation and crust–mantle heterogeneity in the topographic evolution of the Sındırgı Segment (Western Anatolia) ruptured during the 2025 M6.1 earthquake sequence

Earth Surface Processes and Landforms, Volume 51, Issue 8, August 2026.
Swath profile along the Sındırgı Segment. Grey curves show minimum, mean and maximum elevations, and the thick grey line shows elevation‐corrected Moho depth. Coloured circles indicate relative rock uplift from river‐profile inversion while the red curve shows cumulative uplift.
Savaş Topal, Murat Nas, Elif Akgün, Mustafa Softa   +3 more
wiley   +1 more source

Fluid pressures at hypocenters of moderate to large earthquakes [PDF]

Journal of Geophysical Research: Solid Earth, 2001
Many active faults are expected to develop fluid pressures in excess of hydrostatic pressures below 3 to 7 km depth during interseismic periods. Suprahydrostatic fluid pressures are known to reduce the stresses required for brittle failure. Stress differences that trigger moderate to large earthquakes typically range from 40 to 160 MPa, as indicated by
Streit, Jurgen E., Cox, Stephen F.
openaire   +1 more source

Regional Earthquake Ground Motion Simulations for Southern California With EQSIM: Insights From the 2008 Chino Hills, 2024 Highland Park, and 2021 Carson Earthquakes

Earthquake Spectra, Volume 42, Issue 3, August 2026.
This study presents physics‐based, 3D simulations using the EQSIM framework for several earthquakes in the Los Angeles region. The primary objective was to assess the ability of deterministic physics‐based ground motion simulations to reproduce the observed motions from historical events.
Chu‐Han (Clifford) Yen, Arben Pitarka, Houjun Tang, Rie Nakata, David McCallen, Ertugrul Taciroglu   +5 more
wiley   +1 more source

Hypocenter Relocation Aftershock in Seririt on 14 November 2019 with Double Difference Method

Buletin Fisika, 2021
The history of earthquakes records that Bali was once rocked by deadly earthquakes, one of which was the Seririt Earthquake of July 14, 1976 in North Bali.
Ni Luh Putri Rahayu, Ni Komang Trisuandayani, Adityo Mursitantyo   +2 more
doaj   +1 more source

The Influence of Fault Rupture Velocity on Ground Motions and Building Demands in the Near‐Fault Region

Earthquake Spectra, Volume 42, Issue 3, August 2026.
With the recent increases in measured ground motion records for large earthquakes, most notably the 2023 M7.8 Pazarcik earthquake in Türkiye, the potential for pervasive high velocity fault rupture propagation over an extensive fault length has been observed.
David McCallen, Houjun Tang, Junfei Huang, Arben Pitarka   +3 more
wiley   +1 more source