Results 71 to 80 of about 9,060 (222)

Some thoughts on the use of InSAR data to constrain models of surface deformation: Noise structure and data downsampling [PDF]

, 2005
Repeat-pass Interferometric Synthetic Aperture Radar (InSAR) provides spatially dense maps of surface deformation with potentially tens of millions of data points. Here we estimate the actual covariance structure of noise in InSAR data.
Lohman, Rowena B., Simons, Mark
core   +2 more sources

Fault Volume Digital Twin to Reproduce the Full Slip Spectrum, Scaling, and Statistical Laws

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Seismological and geodetic observations of fault zones reveal diverse slip dynamics, scaling, and statistical laws. Existing mechanisms explain some but not all of these behaviors. We show that incorporating an off‐fault damage zone—characterized by distributed fractures surrounding a main fault—can reproduce many key features observed in ...
M. Almakari, N. Kheirdast, C. Villafuerte, M. Y. Thomas, P. Dubernet, J. Cheng, A. Gupta, P. Romanet, S. Chaillat, H. S. Bhat   +9 more
wiley   +1 more source

Vector Angular Continuity in the Fusion of Coseismic Deformations at Multiple Optical Correlation Scales

Sensors, 2023
As one of the common techniques for measuring coseismic deformations, optical image correlation techniques are capable of overcoming the drawbacks of inadequate coherence and phase blurring which can occur in radar interferometry, as well as the problem ...
Rui Guo, Qiming Zeng, Shangzong Lu
doaj   +1 more source

Evidence for postseismic deformation of the lower crust following the 2004 Mw6.0 Parkfield earthquake [PDF]

, 2011
Previous studies have shown that postseismic relaxation following the 2004 Mw6.0 Parkfield, CA, earthquake is dominated by afterslip. However, we show that some fraction of the afterslip inferred from kinematic inversion to have occurred immediately ...
Avouac, Jean-Philippe, Barbot, Sylvain, Bruhat, Lucile   +2 more
core  

Fault Kinematic Controls on the Spatio‐Temporal Proximity of the 2023 Mw 7.8‐7.7 Türkiye Earthquakes

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The mechanism governing the spatio‐temporal proximity of the 2023 Mw 7.8‐7.7 Türkiye earthquakes remains enigmatic. Here, we used dense geodetic observations integrated with dual‐fault screw dislocation, Euler‐vector‐constrained block, and strain‐rate models to investigate the interseismic kinematics and pre‐stress state of the East Anatolian ...
Wenbin Xu, Kai Sun, Qijie Wang, Guojie Meng, Lei Xie, Ali Özkan   +5 more
wiley   +1 more source

Coseismic slip distribution and 3D deformation field simulation of the Menyuan Mw 6.7 earthquake in Qinghai based on InSAR constraint

地质科技通报
On January 8, 2022, a Mw 6.7 earthquake stuck Menyuan Hui Autonomous County, Qinghai Province, resulting in extensive surface ruptures and the closure of the Lanzhou-Xinjiang high-speed railway.
Rui ZENG, Yanan JIANG, Aoxiang YAN, Yan Cheng, Huiyuan LUO   +4 more
doaj   +1 more source

Source parameters of the great Sumatran megathrust earthquakes of 1797 and 1833 inferred from coral microatolls [PDF]

, 2006
Large uplifts and tilts occurred on the Sumatran outer arc islands between 0.5° and 3.3°S during great historical earthquakes in 1797 and 1833, as judged from relative sea level changes recorded by annually banded coral heads.
Abercrombie, Allen, Atwater, Bambang W. Suwargadi, Bock, Briggs, Carver, Cheng, Chhibber, Chlieh, Church, Cobb, Danny Hilman Natawidjaja, Darwin, Deplus, DeShon, du Puy, du Puy, Eberhart-Phillips, Edwards, Edwards, Engdahl, Fitch, Hai Cheng, Hsu, Jacoby, Jean-Philippe Avouac, John Galetzka, Kanamori, Katili, Kerry Sieh, Knutson, Krempf, Lay, McCaffrey, Melbourne, Meriaux, Mohamed Chlieh, Nalbant, Natawidjaja, Netscher, Newcomb, Okada, Prawirodirdjo, Prawirodirdjo, R. Lawrence Edwards, Rivera, Saji, Savage, Sawai, Scoffin, Shen, Sieh, Sieh, Sieh, Sieh, Sieh, Steven N. Ward, Subarya, Taylor, Taylor, Thatcher, Vigny, Ward, Weldon, Zachariasen, Zachariasen   +66 more
core   +3 more sources

Coseismic crustal deformation from microseismicity in the Patras area, western Greece [PDF]

Geophysical Journal International, 1995
SUMMARY The Patras area lies in the western part of central Greece. It is an area characterized by high seismicity and complex neotectonics. Several devastating earthquakes have occurred in the region since 600 BC. Contemporary crustal deformation is examined in this area using microearthquake data recorded over a lengthy period, during 1983–84, by ...
Nikolaos S. Melis, Paul W. Burton, Mike Brooks   +2 more
openaire   +1 more source

DinSAR coseismic deformation measurements of the Mw 8.3 Illapel earthquake (Chile)

Journal of Geodetic Science, 2023
Abstract The beginning of radars goes back to the 1930s where its main boost was related to the second world war. Nowadays, the techniques associated with radars are focused around a vast variety of civil, geodetic, and military applications. The development of the synthetic aperture principle, in the 1950s and 1960s, gave birth to a lot
Agustín Calvet, Sebastián Balbarani, M. Gende   +2 more
openaire   +3 more sources

Characteristics of Seismic Energy Rate Functions of Shallow Tremors

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract We investigated the energy rate functions of shallow tremors southeast of the Kii Peninsula in the Nankai subduction zone. Unimodal functions (triangle or bell‐shaped) explain the characteristics of small (<104 J) shallow tremors. As the seismic radiated energy increases, the energy rate functions become more complex and are better ...
Shunsuke Takemura, Suguru Yabe
wiley   +1 more source