Coseismic and early postseismic deformation due to the 2021 M7.4 Maduo (China) earthquake

2021 ◽  
Author(s):  
Yuri Fialko ◽  
Zeyu Jin
Keyword(s):  
Postseismic Deformation ◽  
China Earthquake

scholarly journals Mechanisms of Transient Postseismic Deformation Following the 2001 Mw 7.8 Kunlun (China) Earthquake

2010 ◽  
Vol 168 (5) ◽  
pp. 767-779 ◽  
Author(s):  
Faqi Diao ◽  
Xiong Xiong ◽  
Rongjiang Wang
Keyword(s):  
Postseismic Deformation ◽  
China Earthquake

Short-time postseismic deformation of 2001 Ms8.1 Kunlun (China) earthquake

2009 ◽  
Vol 22 (12) ◽  
pp. 1803-1812 ◽  
Author(s):  
Shao Zhi-Gang ◽  
Fu Rong-Shan ◽  
Jiang Changsheng
Keyword(s):  
Postseismic Deformation ◽  
China Earthquake ◽  
Short Time

Postseismic deformation mechanisms of the 1990 Mw 6.4 Gonghe, China earthquake constrained using leveling measurements

2012 ◽  
Vol 532-535 ◽  
pp. 205-214 ◽  
Author(s):  
Ming Hao ◽  
Zheng-Kang Shen ◽  
Qingliang Wang ◽  
Duxin Cui
Keyword(s):  
Deformation Mechanisms ◽  
Postseismic Deformation ◽  
China Earthquake

scholarly journals Adjoint-based direct data assimilation of GNSS time series for optimizing frictional parameters and predicting postseismic deformation following the 2003 Tokachi-oki earthquake

2020 ◽  
Vol 72 (1) ◽  
Author(s):  
Masayuki Kano ◽  
Shin’ichi Miyazaki ◽  
Yoichi Ishikawa ◽  
Kazuro Hirahara
Keyword(s):  
Time Series ◽  
Data Assimilation ◽  
Evaluation Method ◽  
Temporal Evolution ◽  
Recovery Process ◽  
Postseismic Deformation ◽  
Coseismic Slip ◽  
Megathrust Earthquakes ◽  
Spatio Temporal ◽  
Gnss Time Series

Abstract Postseismic Global Navigation Satellite System (GNSS) time series followed by megathrust earthquakes can be interpreted as a result of afterslip on the plate interface, especially in its early phase. Afterslip is a stress release process accumulated by adjacent coseismic slip and can be considered a recovery process for future events during earthquake cycles. Spatio-temporal evolution of afterslip often triggers subsequent earthquakes through stress perturbation. Therefore, it is important to quantitatively capture the spatio-temporal evolution of afterslip and related postseismic crustal deformation and to predict their future evolution with a physics-based simulation. We developed an adjoint data assimilation method, which directly assimilates GNSS time series into a physics-based model to optimize the frictional parameters that control the slip behavior on the fault. The developed method was validated with synthetic data. Through the optimization of frictional parameters, the spatial distributions of afterslip could roughly (but not in detail) be reproduced if the observation noise was included. The optimization of frictional parameters reproduced not only the postseismic displacements used for the assimilation, but also improved the prediction skill of the following time series. Then, we applied the developed method to the observed GNSS time series for the first 15 days following the 2003 Tokachi-oki earthquake. The frictional parameters in the afterslip regions were optimized to A–B ~ O(10 kPa), A ~ O(100 kPa), and L ~ O(10 mm). A large afterslip is inferred on the shallower side of the coseismic slip area. The optimized frictional parameters quantitatively predicted the postseismic GNSS time series for the following 15 days. These characteristics can also be detected if the simulation variables can be simultaneously optimized. The developed data assimilation method, which can be directly applied to GNSS time series following megathrust earthquakes, is an effective quantitative evaluation method for assessing risks of subsequent earthquakes and for monitoring the recovery process of megathrust earthquakes.

The Yecheng, Xinjiang, China, earthquake of February 14, 1980

1992 ◽  
Vol 5 (4) ◽  
pp. 675-682
Author(s):  
Suyun Wang ◽  
Zhenliang Shi ◽  
Wenlin Huan
Keyword(s):  
China Earthquake

Inference of postseismic deformation mechanisms of the 1923 Kanto earthquake

2006 ◽  
Vol 111 (B5) ◽  
pp. n/a-n/a ◽  
Author(s):  
Fred F. Pollitz ◽  
Marleen Nyst ◽  
Takuya Nishimura ◽  
Wayne Thatcher
Keyword(s):  
Deformation Mechanisms ◽  
Postseismic Deformation ◽  
Kanto Earthquake

Effectiveness RCT of a CBT Intervention for Youths Who Lost Parents in the Sichuan, China, Earthquake

2014 ◽  
Vol 65 (2) ◽  
pp. 259-262 ◽  
Author(s):  
Ying Chen ◽  
Wen Wu Shen ◽  
Kamko Gao ◽  
Chow S. Lam ◽  
Weining C. Chang ◽  
...  
Keyword(s):  
China Earthquake

Coseismic and postseismic deformation due to the 2007M5.5 Ghazaband fault earthquake, Balochistan, Pakistan

2015 ◽  
Vol 42 (9) ◽  
pp. 3305-3312 ◽  
Author(s):  
H. Fattahi ◽  
F. Amelung ◽  
E. Chaussard ◽  
S. Wdowinski
Keyword(s):  
Postseismic Deformation
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