Results 31 to 40 of about 319 (157)

Co- and Postseismic Deformation of the 2020 Mw 6.3 Nima (Tibet, China) Earthquake Revealed by InSAR Observations

open access: yesRemote Sensing, 2022
On 22 July 2020, an Mw 6.3 earthquake occurred in Nima County, central Qinghai-Tibet Plateau, China. We used the synthetic aperture radar interferometry (InSAR) technique with Sentinel-1 images to retrieve the line of sight (LOS) coseismic deformation ...
Miaomiao Zhang   +8 more
doaj   +1 more source

Imaging topographic growth by long-lived postseismic afterslip at Sefidabeh, east Iran [PDF]

open access: yesTectonics, 2014
This paper describes observations and models of the postseismic deformation following the 1994 Sefidabeh earthquake sequence in east Iran, which shed light on the nature of the earthquake cycle and the mechanisms of topographic growth in the region. Interferometric synthetic aperture radar observations show creeping fault motion (“postseismic afterslip”
Copley, Alex, Reynolds, Kirsty
openaire   +3 more sources

Dynamics of a fault model with two mechanically different regions

open access: yesEarth, Planets and Space, 2017
We consider a fault containing two regions with different mechanical behaviours: a strong, velocity-weakening region (asperity) and a weak, velocity-strengthening region.
Michele Dragoni, Emanuele Lorenzano
doaj   +1 more source

Coseismic and postseismic fault slip characteristics of the 2020 MW6.3 Nima earthquake

open access: yes地球与行星物理论评, 2023
The 2020 MW6.3 Nima earthquake occurred in the northern Yibug Caka graben on the Qiangtang Block of the Tibetan Plateau. The epicentral area has complex geological structures, topography, and geomorphology, and there are few near-field ground observation
Yang Liu   +3 more
doaj   +1 more source

Co-Seismic and Post-Seismic Slip Properties Associated with the 2024 M 7.5 Noto Peninsula, Japan Earthquake Determined by GNSS Observations

open access: yesRemote Sensing
Based on GNSS observations, the co-seismic and post-seismic slip of the 2024 Noto Peninsula earthquake and the spatio-temporal pattern of afterslip are investigated in this paper. The co-seismic slip is mainly distributed in the depth range of 2 to 15 km
Yunfei Xiang   +4 more
doaj   +1 more source

Time‐dependent triggered afterslip following the 1989 Loma Prieta earthquake [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2000
We employ a modified version of the Network Inversion Filter to investigate time‐dependent slip following the 1989 Loma Prieta earthquake. Previous analysis of Global Positioning System (GPS) and leveling data suggests afterslip on the Loma Prieta rupture as well as aseismic slip on a thrust fault northeast of the San Andreas fault which we identify ...
Paul Segall   +2 more
openaire   +1 more source

Slow Slip Events Following the 2002 Mw 7.1 Hualien Offshore Earthquake Afterslip [PDF]

open access: yes, 2021
Abstract The recurrence intervals of slow slip events may increase gradually after a large earthquake during the afterslip. Stress perturbations during coseismic and postseismic periods may result in such an increase of intervals. However, the increasing recurrence intervals of slow slip events are rarely observed during an afterslip.
Sean Kuanhsiang Chen   +2 more
openaire   +1 more source

2001年MW7.8昆仑山地震震后形变观测、机制与青藏高原中北部岩石圈流变:认识与挑战

open access: yesDizhen xuebao, 2021
2001年MW7.8昆仑山地震是近半个世纪以来青藏高原发生的最大震级地震。同震破裂产生的巨大应力扰动驱动控制着显著震后形变。二十年尺度的大地测量数据记录了地震后长时间、大范围、时空依赖的震后形变演化过程及差异,揭示了昆仑山地震破裂段复杂的断层分段震后运动学特征、分段摩擦性质差异和青藏高原中北部岩石圈流变性质/结构横向各向异性。本文简要回顾昆仑山地震后基于二十年尺度时序InSAR和GPS的震后形变观测方法和时空特征,特别是时空密集的InSAR观测,是该构造区震后GPS观测的重要补充及其不可替代的观测手段 ...
Dezheng Zhao   +6 more
doaj   +1 more source

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

open access: yesGeophysical 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   +3 more
wiley   +1 more source

Co-existing fast and slow afterslip processes following the 2015 Gorkha (MW7.8) earthquake resolved by full time-series inversionKey points

open access: yesEarthquake Science
The 2015 Gorkha (MW=7.8) earthquake ruptured the downdip portion of the Main Himalayan Thrust. Afterslip following this event provides valuable insights into the frictional properties on the thrust interface, yet its amplitude and distribution remain ...
Zeyan Zhao   +6 more
doaj   +1 more source

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