Results 81 to 90 of about 1,574 (206)

Surface ruptures and off-fault deformation of the October 2016 central Italy earthquakes from DInSAR data

Scientific Reports, 2022
Large magnitude earthquakes produce complex surface deformations, which are typically mapped by field geologists within the months following the mainshock. We present detailed maps of the surface deformation pattern produced by the M.
Filippo Carboni, Massimiliano Porreca, Emanuela Valerio, Manzo Mariarosaria, Claudio De Luca, Salvatore Azzaro, Maurizio Ercoli, Massimiliano R. Barchi   +7 more
doaj   +1 more source

Focal Mechanism and Regional Fault Activity Analysis of 2022 Luding Strong Earthquake Constraint by InSAR and Its Inversion

Remote Sensing, 2023
On 5 September 2022, an Ms6.8 magnitude earthquake occurred in Luding County, Sichuan Province, China. Based on Sentinel-1 SAR images, this paper uses the D-InSAR approach to obtain the displacement field of the earthquake, invert the coseismic sliding ...
Wenshu Peng, Xuri Huang, Zegen Wang
doaj   +1 more source

Why blind thrust faults do not propagate to the Earth's surface: Numerical modeling of coseismic deformation associated with thrust‐related anticlines [PDF]

Journal of Geophysical Research: Solid Earth, 1997
High fault‐tip stress concentrations are associated with coseismic slip on blind thrust faults and suggest that these structures should readily propagate to the Earth's surface. Seismic profiles of blind‐thrust‐related earthquakes reveal diffuse zones of aftershocks surrounding the fault tip which are attributed to inelastic deformation, such as ...
Joshua J. Roering, Michele L. Cooke, David D. Pollard   +2 more
openaire   +1 more source

Does Three‐Dimensional Structure Affect Tsunami Excitation and Stress Drop Estimates?—The Case of the 2011 Tohoku Earthquake

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Reliable calculations of coseismic sea‐surface deformation and stress drop are essential for understanding megathrust earthquake rupture and tsunami behavior. However, the impacts of realistic three‐dimensional (3D) structure, such as seafloor topography and structural heterogeneity, on stress‐change calculations and tsunami excitation during ...
Tatsuya Kubota, Tatsuhiko Saito
wiley   +1 more source

Homogeneous vs heterogeneous subduction zone models: Coseismic and postseismic deformation [PDF]

, 2001
A finite-element model (FEM) incorporating geologic properties characteristic of a subduction zone is compared with FEMs approximating homogeneous elastic half-spaces (HEHS)s to investigate the effect of heterogeneity on coseismic and postseismic ...
Masterlark, T., Sánchez, O., Stock, J., DeMets, C., Wang, H. F.   +4 more
core  

The 2010–2011 South Rigan (Baluchestan) earthquake sequence and its implications for distributed deformation and earthquake hazard in southeast Iran [PDF]

We investigate the source processes and tectonic significance of two earthquakes that occurred on 2010 December 20 (Mw 6.5) and 2011 January 27 (Mw 6.2) within a desert region south of the town of Rigan, SE Iran. The two earthquakes, which we refer to as
Fielding, E. J., Oveisi, B., Walker, R. T., Ghods, A.-R., Nazari, H., Jackson, J., Ghoraishi, M., Talebian, M., Walters, R. J., Bergman, E. A., Elliott, J. R., Nemati, M.   +11 more
core   +1 more source

25‐Second Determination of 2019 Mw 7.1 Ridgecrest Earthquake Coseismic Deformation [PDF]

, 2020
We have developed a global earthquake monitoring system based on low‐latency measurements from more than 1000 existing Global Navigational Satellite System (GNSS) receivers, of which nine captured the 2019 Mw 6.4 Ridgecrest, California, foreshock and Mw ...
Santillan, Marcelo, Szeliga, Walter, Scivner, Craig W., Melbourne, Timothy I.   +3 more
core   +1 more source

Coseismic Tectonic Surface Deformation during the 2010 Maule, Chile, M _w 8.8 Earthquake

Earthquake Spectra, 2012
Tectonic deformation from the 2010 Maule (Chile) M w 8.8 earthquake included both uplift and subsidence along about 470 km of the central Chilean coast. In the south, deformation included as much as 3 m of uplift of the Arauco Peninsula, which produced emergent marine platforms and affected ...
Kelson, K., Witter, R.C., Tassara, A., Ryder, I., Ledezma Araya, Christian Alfonso, Montalva, G., Frost, D., Sitar, N., Moss, R., Johnson, L.   +9 more
openaire   +3 more sources

Effects of Pore Fluid Properties on Dynamic Slip in Sandstone‐Derived Fault Gouges From the Groningen Gas Reservoir

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract The dynamic slip behavior of faults is strongly influenced by the thermal and hydraulic properties of pore fluids, which control thermal pressurization (TP) during seismic slip. While previous experiments showed significant TP‐induced weakening in DI‐water‐saturated Groningen sandstone gouges, in situ fluids are brine or brine–gas mixtures ...
Chien‐Cheng Hung, André R. Niemeijer
wiley   +1 more source

Factors influencing the effectiveness of SM-VCE method in solving 3D surface deformation

Geodesy and Geodynamics
The recovery of coseismic 3-dimensional (3D) surface deformation field plays a crucial role in studying seismic source characteristics and earthquake hazards. As of now, there are two main types of methods for recovering coseismic 3D surface deformations:
Xupeng Liu, Guangyu Xu, Mingkai Chen, Tengxu Zhang   +3 more
doaj   +1 more source