Results 11 to 20 of about 5,928,716 (191)

Study on co-seismic deformation wave characteristics of crustal deformation observation records in Ankang area

地震科学进展, 2022
Based on the observation records of deformation stations in Ankang area from 2017 to 2020, we compared and analyzed the earthquake-reflecting capacity of six sets of instruments, and systematically discussed the relationship between the source parameters
Xuejuan Zhang, Chuangjun Zhang, Yueming Wang, Ruotong Shao, Yunhe Gu   +4 more
doaj   +1 more source

InSAR Constrained Downdip and Updip Afterslip Following the 2015 Nepal Earthquake: New Insights into Moment Budget of the Main Himalayan Thrust

Remote Sensing, 2022
We use ALOS-2 and Sentinel-1 data spanning 2015–2020 to obtain the post-seismic deformation of the 2015 Mw 7.8 Nepal earthquake. ALOS-2 observations reveal that the post-seismic deformation was mainly distributed in four areas.
Lei Zhao, Chunyan Qu, Dezheng Zhao, Xinjian Shan, Han Chen, Lian Liu   +5 more
doaj   +1 more source

Analysis on the observation data of DSQ water pipe inclinometer and VP vertical pendulum in Wuzhishan Station, Hainan Province

地震科学进展, 2022
Based on the statistical data, change trend analysis, accuracy, and co-seismic deformation wave analysis of DSQ water pipe inclinometer and VP vertical pendulum of Wuzhishan Station, it is considered that the quality index of continuity, drift, and ...
Yuqin Guo, Guochao Fu, Sanjian Sun, Shuang Wu   +3 more
doaj   +1 more source

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

Geophysical Research Letters
On March 9th, 2023, three small earthquakes (3.8≤Mw≤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 ...
Eugenio Mandler, Lucia Zaccarelli, Massimo Nespoli, Maria Elina Belardinelli, Francesco Pintori, Enrico Serpelloni, Adriano Gualandi, Lauro Chiaraluce   +7 more
doaj   +4 more sources

Spatiotemporal Distribution of Afterslip following the 2014 Yutian Mw 6.9 Earthquake Using COSMO-SkyMed and Sentinel-1 InSAR Data

Remote Sensing, 2023
Spatiotemporal distribution of early afterslip is essential for seismic hazard evaluation and determination of fault friction properties. In this study, we used early post-seismic COSMO-SkyMed (19 February 2014–08 April 2014) and long-term Sentinel-1 (16
Zhanhong Huang, Lei Xie, Lei Zhao, Wenbin Xu   +3 more
doaj   +1 more source

Co- and Post-seismic Deformation Mechanisms of the 2020 Mw6.0 Jiashi Earthquake in Xinjiang (China), Revealed by Sentinel-1 InSAR Observations

Frontiers in Environmental Science, 2022
On 19 January 2020, an Mw6.0 earthquake occurred in Jiashi County, Xinjiang, China. This earthquake is a strong earthquake that occurred in the Kepingtage Belt.
T. Wang, S. N. Zhu, C. S. Yang, Y. J. Wei, C.Y. Zhao, H.C. Hou   +5 more
doaj   +1 more source

Identification of Surface Deformation in InSAR Using Machine Learning

Geochemistry, Geophysics, Geosystems, 2021
The availability and frequency of synthetic aperture radar (SAR) imagery are rapidly increasing. This surge of data presents new opportunities to constrain surface deformation that spans various spatial and temporal scales. This expansion also introduces
Clayton M. J. Brengman, William D. Barnhart   +1 more
doaj   +1 more source

Co-seismic surface dilatation and shear strain fields derived from SPOT-5 displacements

, 2023
Repeated earthquake cycles produce topography, fault damage zones, and other geologic structures along faults. These geomorphic and structural features indicate the presence of co-seismic permanent (inelastic) surface deformation, yet a long-standing ...
Barnhart, William D, Cheng, Guo
core   +1 more source

Recent Crustal Deformation in West-Central South America [PDF]

, 2003
I use interferometric synthetic aperture radar (InSAR) to create maps of crustal deformation along the coast and within the volcanic arc of central South America. I image deformation associated with six subduction zone earthquakes, four volcanic centers,
Pritchard, Matthew Earl
core   +1 more source

Preliminary study on co-seismic deformation steps of digital fixed-point and double earthquakes in Yunnan Province

地震科学进展, 2020
The determination of the subsequent-earthquake trend is a hot topic for people in the disaster area. By analyzing the correlation between amplitudes of co-seismic deformation and subsequent earthquake from double earthquakes during 2008—2018 recorded by ...
Hualiu Wang, Wei Jiang
doaj   +1 more source