Results 81 to 90 of about 10,489 (209)

Seismic Velocity Variations, Ground Deformation and the Role of Fluids During a Low‐Energy Seismic Swarm

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract On March 9th $9\mathrm{th}$, 2023, three small earthquakes (3.8≤Mw≤4.5) $(3.8\le {M}_{w}\le 4.5)$ occurred near Umbertide (Central Italy), within 4 hours. Analyzing seismic ambient noise in the frequency band 0.1–1 Hz from six seismometers within 20 km of the Mw 4.5, we detect a significant drop in seismic velocity at the time of occurrence of
Eugenio Mandler, Lucia Zaccarelli, Massimo Nespoli, Maria Elina Belardinelli, Francesco Pintori, Enrico Serpelloni, Adriano Gualandi, Lauro Chiaraluce   +7 more
wiley   +1 more source

Structure-controlled asperities of the 1920 Haiyuan M8.5 and 1927 Gulang M8 earthquakes, NE Tibet, China, revealed by high-resolution seismic tomography

Scientific Reports, 2021
Detailed crustal structure of large earthquake source regions is of great significance for understanding the earthquake generation mechanism. Numerous large earthquakes have occurred in the NE Tibetan Plateau, including the 1920 Haiyuan M8.5 and 1927 ...
Quan Sun, Shunping Pei, Zhongxiong Cui, Yongshun John Chen, Yanbing Liu, Xiaotian Xue, Jiawei Li, Lei Li, Hong Zuo   +8 more
doaj   +1 more source

Constraints on fault and lithosphere rheology from the coseismic slip and postseismic afterslip of the 2006 M_w 7.0 Mozambique earthquake [PDF]

, 2012
The 2006 M_w 7.0 Mozambique (Machaze) normal-faulting earthquake ruptured an unusually steeply dipping fault plane (~75°). The amount of slip in the earthquake decreased from depths of ~10 km toward the surface, and this shallow slip deficit was at least
Bergman, Eric, Copley, Alex, Hollingsworth, James   +2 more
core   +1 more source

Permeability Enhancement by Slow Faulting Under High Pore Fluid Pressure

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract The morphology of fault zones formed by slow faulting is markedly different from that of brittle faulting. In this study, we quantify the three‐dimensional (3D) pore distribution and permeability structures of two rock samples that have been deformed to failure by slow and brittle faulting, respectively.
Tommaso Mandolini, Zachary Zega, Mark Rivers, Wenlu Zhu   +3 more
wiley   +1 more source

Difference in Slip Patterns Between Two Prehistoric Giant Earthquakes Along the Southern Kuril Trench

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract This study reveals different slip patterns of tsunami sources between two prehistoric giant earthquakes along the southern Kuril Trench, based on an integration of geological data and numerical simulations. The most recent giant earthquake occurred in the 17th century and its predecessor was in the 13th–14th century.
Kei Ioki, Yuki Sawai, Yuichi Namegaya, Dan Matsumoto, Koichiro Tanigawa, Yumi Shimada, Toru Tamura, Rina Okada   +7 more
wiley   +1 more source

Spontaneous thermal runaway as an ultimate failure mechanism of materials [PDF]

, 2007
The first theoretical estimate of the shear strength of a perfect crystal was given by Frenkel [Z. Phys. 37, 572 (1926)]. He assumed that as slip occurred, two rigid atomic rows in the crystal would move over each other along a slip plane.
A. Molinari, D. L. Turcotte, D. T. Griggs, L. E. Malvern, M. Ogawa, S. Braeck, Y. Y. Podladchikov   +6 more
core   +1 more source

Rupture Cascade Initiated by Wastewater Disposal: Nucleation and Domino Effect of Canada's Largest Induced Earthquake

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract In 2022–2023, three local‐magnitude (ML) 4.8–5.6 earthquakes shook the Peace River oilsands area of Alberta, Canada. Previous studies statistically linked the seismicity to nearby disposal activities but lacked in‐depth investigation into triggering mechanisms, including subsurface fluid migration and earthquake interaction.
Wenhan Sun, Yu Jeffrey Gu, Yajing Liu, Tianyang Li, Ruijia Wang, Jingchuan Wang, Rebecca Harrington, Marco Roth, Ryan Schultz, Guangyu Xu, Guoyan Jiang   +10 more
wiley   +1 more source

Characteristics and seismogenic structure of the April 2024 Weishan (Yunnan, China) MS4.1 and MS4.3 double-earthquake sequence

Frontiers in Earth Science
According to the China Earthquake Networks Center (CENC), two moderate earthquakes of MS 4.1 and MS 4.3 struck Weishan County, Yunnan Province, at 05:54:10 local time on 19 April 2024 and 13:05:16 local time on 24 April 2024, respectively, constituting a
Hetang Hei, Hetang Hei, Tianyu Zhang, Yuan Zhang, Jun Wang, Wenjian Cha, Chengzhu Zi, Qiong Gao   +7 more
doaj   +1 more source

Imaging 3D seismic velocity along the seismogenic zone of Algarve region (southern Portugal) [PDF]

, 2010
The present seismic tomographic study is focused around Algarve region, in South of Portugal. To locate the seismic events and find the local velocity structure of epicentral area, the P and S arrival times at 38 stations are used.
Bezzeghoud, M, Borges, JF, Caldeira, B, Carrilho, F, Dias, N, Dorbath, L, Rocha, J   +6 more
core  

Geotechnical design with apparent seismic safety factors well-bellow 1 [PDF]

, 2014
The paper demonstrates that whereas often in seismic geotechnical design it is not realistically feasible to design with ample factor of safety against failure as is done in static design, an "engineering" apparent seismic factor of safety less than 1 ...
Anastasopoulos, Apostolou, Chen, Chopra, Cremer, Drosos, Evangelia Garini, Gajan, Garini, Gazetas, Gazetas, Gelagoti, George Gazetas, Gerolymos, Harden, Ioannis Anastasopoulos, Makris, Mergos, Newmark, Panagiotidou, Paolucci, Priestley, Priestley, Sarma, Shirato, Taylor, Villaverde, Zhang   +27 more
core   +3 more sources