日本9.0级地震前后华北形变场变化特征与地震趋势分析

EARTHQUAKE ›› 2012, Vol. 32 ›› Issue (2): 64-72.

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Changing Characteristics of the Deformation Field before and after the 2011 Japan 9.0 Earthquake and Earthquake Trend in Huabei, China

ZHANG Jing¹, LIU Xia², FANG Ying¹, LIU Qi¹

1. Institute of Earthquake Science, CEA, Beijing 100036, China;
2. First Crust Monitoring and Application Center, CEA, Tianjin 300180, China

Received:2012-01-13 Revised:2012-02-13 Online:2012-04-30 Published:2021-08-20

Abstract

Abstract: Strain changes of the main faults in Huabei region co-deformed from the 2011 Japan 9.0 earthquake are analysed in this paper. Combined with recently deformation anomalies analysed the characteristics of deformation change of the Huabei region before and after Japan 9.0 earthquake, discussed the impact on the earthquake trend in Huabei region and other future concern areas. The results show that EW compressive strain of Huabei region were partly released during Japan 9.0 earthquake, and co-deformation responses differed in different regions. Some deformation trends have turned back after the earthquake. Recent phenomenon near the middle-south segment of the Tanlu Fault should be of concern, where compressive deformation background and fault activity level have increased.

Key words: Deformation field, Trend of Earthquake, Japan 9.0 Earthquake, Huabei region

CLC Number:

P315.7

ZHANG Jing, LIU Xia, FANG Ying, LIU Qi. Changing Characteristics of the Deformation Field before and after the 2011 Japan 9.0 Earthquake and Earthquake Trend in Huabei, China[J]. EARTHQUAKE, 2012, 32(2): 64-72.

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Changing Characteristics of the Deformation Field before and after the 2011 Japan 9.0 Earthquake and Earthquake Trend in Huabei, China

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