Relationship between the 2008 MS 8.0 Wenchuan Earthquake and the 2017 MS 7.0 Jiuzhaigou Earthquake
Abstract We calculate the Coulomb failure stress change caused by the 2008 Wenchuan earthquake by choosing model parameters, such as the 2008 Wenchuan earthquake rupture models, the fault parameters of 2017 Jiuzhaigou earthquake, and the effective friction coefficient. Our results show that the sum of co-seismic and post-seismic Coulomb stress change until 2017 is about 3~7 kPa at the epicenter of the Jiuzhaigou earthquake, which is less than the triggering threshold (10 kPa). The 2008 Wenchuan earthquake might have promoted the 2017 Jiuzhaigou earthquake to some degree. However, the triggering is not the main cause of the occurrence of the 2017 Jiuzhaigou earthquake. By analyzing the stress results from the models with various model parameters, we find that the rupture model of 2008 Wenchuan earthquake has the greatest impact on the results. Using a different rupture model of the 2008 Wenchuan earthquake might be the main reason for the different results from previous studies.
Key words :
Jiuzhaigou earthquake
Wenchuan earthquake
Coulomb stress change
earthquake triggering
Cite this article:
DONG Peiyu,LIU Chang,SHI Yaolin. Relationship between the 2008 MS 8.0 Wenchuan Earthquake and the 2017 MS 7.0 Jiuzhaigou Earthquake[J]. jgg, 2019, 39(8): 777-782.
DONG Peiyu,LIU Chang,SHI Yaolin. Relationship between the 2008 MS 8.0 Wenchuan Earthquake and the 2017 MS 7.0 Jiuzhaigou Earthquake[J]. jgg, 2019, 39(8): 777-782.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2019/V39/I8/777
[1]
LIU Zhijun,TAN Kai,WANG Qi,WANG Lei,ZHANG Jian,ZHAO Bin,QIAO Xuejun. Numerical Simulation Analysis of After-Slip and Viscoelastic Relaxation after the Wenchuan Earthquake [J]. jgg, 2021, 41(6): 577-583.
[2]
ZHAO Zhichuang,ZHANG Yan,ZHAO Ying. Recognition Analysis on Anomalous Characteristics of Imminent Earthquake——Taking Wenchuan Earthquake as an Example [J]. jgg, 2021, 41(5): 544-549.
[3]
YANG Jianbing,HAO Bin,U Ruilin,U Jiansheng,ANG Dongzhen. Study on Rupture Models and Triggering Relationships of the 1923Renda Earthquake and the 1973 Luhuo Earthquake
[J]. jgg, 2020, 40(8): 783-789.
[4]
WANG Lei, TAN Kai. Study on the Reliability of Coulomb Stress Change Induced by the 2008 Wenchuan MW 7.9 Earthquake [J]. jgg, 2020, 40(7): 692-696.
[5]
HUANG Yong, CHEN Wei, LI Qi, WANG Dongzhen, FANG Zhiwei. Coseismic Slip Distribution of the 2017 MS 7.0 Jiuzhaigou Earthquake from Joint Inversion of GPS, InSAR and Strong Motion Data [J]. jgg, 2020, 40(6): 565-570.
[6]
NIU Anfu,ZHANG Lingkong,ZHANG Jing,LI Yuan,ZHAO Jing,YAN Wei,YUE Chong,YUAN Zhengyi. On the Fixed Points in Crust Deformation prior to Wenchuan Earthquake and Dynamic Background [J]. jgg, 2020, 40(1): 1-6.
[7]
JIN Zhitong,WAN Yongge,WANG Fuchang,YANG Fan,LI Yao. Evidence on the Stress Effect of the 2008 Wenchuan Earthquake Rupture to the Northeast [J]. jgg, 2019, 39(8): 783-789.
[8]
XU Kangsheng,LI Ying. The Permutation Entropy Change of Ground Motion before the MS 8.0 Wenchuan Earthquake [J]. jgg, 2019, 39(6): 573-576.
[9]
XIONG Wei,LUO Sanming. InSAR Observation and Fault Rupture Study of the Jiuzhaigou MS 7.0 Earthquake [J]. jgg, 2019, 39(5): 452-457.
[10]
HE Kefeng,ZHAO Bin,DU Ruilin. Post-Seismic Deformation Associated with the 2008 Wenchuan Earthquake by Long-Term GPS Data [J]. jgg, 2019, 39(2): 122-126.
[11]
LIU Jie. Coseismic Slip of Wenchuan Earthquake Inversed by Particle Swarm Optimization Algorithm Using Three-Dimensional Data [J]. jgg, 2019, 39(2): 127-130.
[12]
ZHANG Xi,QIN Shanlan,HAO Ming,LI Ruisha. Discussion on the Correlation between Cross-Fault Abnormality of the Xianshuihe Fracture and the Jiuzhaigou Earthquake [J]. jgg, 2019, 39(10): 991-996.
[13]
LIU Fangbin,QU Junhao. Research on Static Coulomb Stress Changes and Seismicity in Lintan-Tanchang Fault and the Adjacent Area [J]. jgg, 2018, 38(9): 886-890.
[14]
WANG Jiapei,SHEN Chongyang,XUAN Songbai,YANG Guangliang,HAO Hongtao. Density Variation in the Crust before the Jiuzhaigou, Sichuan, MS 7.0 Earthquake of 2017 [J]. jgg, 2018, 38(8): 771-776.
[15]
WEN Yangmao, ZHANG Guobo, XU Caijun. GPS Velocity Field Clustering in the Sichuan-Yunnan Region [J]. jgg, 2018, 38(5): 441-446.