Results 51 to 60 of about 216 (161)

Fault Geometry Invariance and Differentiable Ensemble Solutions for Simultaneous Fault and Slip Inversion in Heterogeneous Crustal Structures

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Fault slip inversions based on geodetic observations deepen our understanding of earthquake source processes. Previous attempts to simultaneously estimate the fault geometry and slip distribution have typically assumed a homogeneous half‐space owing to the prohibitively high computational costs of conventional numerical approaches.
Tomohisa Okazaki, Ryoichiro Agata, Masayuki Kano, Takeo Ito, Kazuro Hirahara, Naonori Ueda   +5 more
wiley   +1 more source

Tracing fault systems from subsurface to surface in Yogyakarta and its surroundings, Indonesia

Natural Hazards Research
The Yogyakarta area and its surroundings have a reasonably high population density and disaster vulnerability. Appropriate mitigation is essential to reduce the impact of earthquakes in this region caused by co-seismic activity around active faults in ...
Mohamad Ramdhan, Priyobudi Priyobudi, Muhammad Maruf Mukti, Ade Surya Putra, Edi Hidayat, Faiz Muttaqy, Syuhada Syuhada, Muhammad Hanif, Sri Widiyantoro, Virga Librian, Anggie Susilawati, Iktri Madrinovella, Wandono Wandono   +12 more
doaj   +1 more source

Effect of newly refined hypocenter locations on the seismic activity recorded during the 2016 Kumamoto Earthquake sequence

Earth, Planets and Space, 2017
We present the results of relocating 17,544 hypocenters determined from data recorded during the 2016 Kumamoto Earthquake sequence, during the interval between April 14, 2016, and August 31, 2016.
Tomoko Elizabeth Yano, Makoto Matsubara
doaj   +1 more source

High‐Resolution Imaging of a Distant M6 Intermediate‐Depth Earthquake Using Ocean‐Bottom DAS and Seismic Network

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Distributed Acoustic Sensing (DAS) provides dense, wide‐aperture observations potentially ideal for imaging earthquake rupture processes. By combining data from a ∼450 km‐long seafloor DAS array offshore Chile and a conventional seismic network, we image an Mw 6.0 intermediate‐depth earthquake ∼400 km away in Argentina, achieving km‐scale ...
Yuqing Xie, Jean‐Paul Ampuero, Martijn van den Ende, Tong Zhou, Alister Trabattoni, Marie Baillet, Diane Rivet   +6 more
wiley   +1 more source

Double-Difference Method for Relocating the Hypocenter of Aftershock Earthquakes in Seririt Singaraja

Asian Journal of Research and Reviews in Physics
A method that does not require a main earthquake (master event) that can be used simultaneously to relocate a very large number of earthquakes with wide hypocenter separation is called the double-difference method. A method used to relocate the aftershocks in Seririt Singaraja on November 14 2019 with coordinate positions 113.478 – 115.181 East ...
Winardi Baskoro, Gde Kasmawan, Made Yuliara, Ketut Putra, Dan Sismanto   +4 more
openaire   +1 more source

Hypocenter migration and temporal variation in background seismic intensity and indicating fluid intrusion and diffusion: earthquake swarm activity in and around Nara Prefecture

Earth, Planets and Space
At the end of May 2001, a series of earthquake swarms began in the southwestern part of Nara Prefecture, Japan, near the border with Wakayama Prefecture, followed by a series in central Nara Prefecture at the end of July 2002.
Fuyuki Hirose, Masaki Nakamura, Kazuhiro Kimura   +2 more
doaj   +1 more source

The 2025 Mw 7.6 Aomori Megathrust Earthquake in Northeast Japan: Failure of a Structurally and Rheologically Bounded Asperity Beneath a Cold Mantle Wedge

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract To explore mechanisms of rupture segmentation, we invert coseismic GNSS offsets for the 2025 Mw 7.6 Aomori, Japan earthquake. Our preferred curved‐fault solution images a compact thrust rupture at 25–50 km depth with peak slip ∼2.5 m near 35 km.
Xiaolong Zhang, Shaoyang Li, Jinhong Shi, Yuji Itoh, Ji Zhang, Aitaro Kato, Ling Chen   +6 more
wiley   +1 more source

Faulting mechanism of the Campania–Lucania 1980 earthquake, Italy, from high-resolution, 3D velocity structure, aftershock relocation, fault-plane solutions, and post-seismic deformation modeling

Annals of Geophysics, 2011
<p>This study performs a detailed reconstruction of the rupture mechanism of the 1980 Campania–Lucania (southern Italy) earthquake. This is achieved by relocation of the main event through computation of fault-plane solutions of the aftershocks, P ...
Roberto Scarpa, Bellina Di Lieto, Luca Crescentini, Antonella Amoruso   +3 more
doaj   +1 more source

Back‐Propagating Earthquake Rupture Controlled by Fluid‐Modulated Effective Normal Stress

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Back‐propagating earthquake rupture (BPR), where slip migrates opposite to the main rupture direction, is observed in several earthquakes but its origin remains poorly understood, particularly the role of fluids. We use dynamic simulations of frictional sliding coupled with fluids to explore the mechanisms of BPR. Our simulations show that BPR
Jiayi Ye, Luca Dal Zilio, Domenico Giardini   +2 more
wiley   +1 more source

Quasi-real-time earthquake relocation and monitoring in the northeastern Noto Peninsula

Earth, Planets and Space
The seismicity rate markedly increased in the northeastern Noto Peninsula of Ishikawa Prefecture around the end of 2020, with an Mw6.2 event on 5 May, 2023, followed by many aftershocks.
Ryuta Matsumoto, Keisuke Yoshida
doaj   +1 more source