STUDY ON GRAVITY CHANGE AROUND WENCHUAN Ms8.0 EARTHQUAKE RECORDED IN JI-LU-YU JUNCTION AREA
Xie Ruyi;Li Qinglin;Qin jianzeng;Zhang Ruiming;Xu Shunqiang; and Feng Jianlin
Geophysical Exploration Center, CEA, Zhengzhou 450002
Abstract Gravity changes around the Wenchuan Ms8.0 strong earthquake are probed using the gravity data in many period of time from mobile gravimetric observation network which is located at junction area of Hebei, Shangdong and Henan province(Ji-Lu-Yu). The results revealed that in the period of earthquke preparation in a definited area there was a negative gravity anomaly whose maximum value was 43×10 -8 ms -2, nearly before the earthquake occuring and then gravity should be restored up after the earthquke.
Key words ：
gravity change
Wenchuan Ms8.0 strong earthquake
Ji-Lu-Yu area
gravity data
deepseated materials movement
Received: 01 January 1900
Corresponding Authors:
Xie Ruyi
Cite this article:
Xie Ruyi,Li Qinglin,Qin jianzeng et al. STUDY ON GRAVITY CHANGE AROUND WENCHUAN Ms8.0 EARTHQUAKE RECORDED IN JI-LU-YU JUNCTION AREA[J]. , 2009, 29(1): 27-30.
Xie Ruyi,Li Qinglin,Qin jianzeng et al. STUDY ON GRAVITY CHANGE AROUND WENCHUAN Ms8.0 EARTHQUAKE RECORDED IN JI-LU-YU JUNCTION AREA[J]. jgg, 2009, 29(1): 27-30.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2009/V29/I1/27
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