RECENT CHANGES OF GRAVITY FIELD AND EARTHQUAKE
ACTIVITIES IN DIANXI AREA
1）Surveying Engineering Institute, Earthquake Administration of Sichuan Province, Yaan 62500
2）Deformation Measurement Center, Earthquake Administration of Yunnan Province, Kunming 650300
Abstract The changes of regional gravity field have been obtained by the observation data from 2010 to 2012 in the west area of Sichuan and Yunnan which has been unified processed and analysised. Combined the NinglangYanyuan Ms5.7 earthquake and the Yiliang Ms5.7 earthquake which the both recently took place in the AnningheZemuhe fault area，the activities of the AnningheZemuhe fault were researched. The results showe that the gravity changes of the earthquake region increased rapidly and dramatically before the both earthquakes，and the gravity changes increased about 60×10 nms-2 in a year.
Zheng Bing,Wang Shuanghong,Wang Qinghua et al. RECENT CHANGES OF GRAVITY FIELD AND EARTHQUAKE
ACTIVITIES IN DIANXI AREA[J]. jgg, 2013, 33(Supp.1): 8-10.
Zheng Bing,Wang Shuanghong,Wang Qinghua et al. RECENT CHANGES OF GRAVITY FIELD AND EARTHQUAKE
ACTIVITIES IN DIANXI AREA[J]. jgg, 2013, 33(Supp.1): 8-10.
