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| 昆仑山口西Ms8.1地震前远场应变异常研究 | |
| 引用本文： | 田韬,卢永,杨军.昆仑山口西Ms8.1地震前远场应变异常研究[J].内陆地震,2004,18(2):101-105. |
| 作者姓名： | 田韬 卢永 杨军 |
| 作者单位： | 1. 中国地震局兰州地震研究所,甘肃,兰州,730000 2. 中国科学技术大学,安徽,合肥,230026 3. 江苏省地震局,江苏,南京,210014 |
| 摘 要： | 依据6个钻孔应力-应变连续观测资料，研究了区域应力场的变化，结果表明在2000年10月整个青藏高原周边应力场发生了显著的变化．与昆仑山口西8．1级地震前的地震活动时空分布进行了对比，研究发现发生在2000年9月的兴海震群和2000年10—11月的唐古拉山震群是这次8．1级地震在孕震过程中的一次应力积聚释放的结果． |
| 关 键 词： | 昆仑山口西8．1级地震 场兆 前兆异常 应力场 |
| 文章编号： | 1001-8956(2004)02-0101-05 |
| 修稿时间： | 2004年3月7日 |
STUDY OF THE STRAIN ANOMALY ABOUT THE FAR FIELD BEFORE THE EARTHQUAKE WITH Ms8.1 IN WEST KUNLUN MOUNTAIN |
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| TIAN Tao,Lu Yong,YANG Jun.STUDY OF THE STRAIN ANOMALY ABOUT THE FAR FIELD BEFORE THE EARTHQUAKE WITH Ms8.1 IN WEST KUNLUN MOUNTAIN[J].Inland Earthquake,2004,18(2):101-105. | |
| Authors: | TIAN Tao Lu Yong YANG Jun |
| Institution: | TIAN Tao~1,Lu Yong~2,YANG Jun~3 |
| Abstract: | According to the continuous observation data of the borehole stress-strain of 6 stations, we studied the variance of the region stress field. The result showed that the stress field around the Qinghai-Xizang plateau appeared some marked variance in Oct. 2000. By comparing with the time-space distribution of seismic activities before the earthquake with M_S8.1 in the west Kunlun mountain, we discovered that it is the result of stress concentration release about the Xinghai earthquake swarm in Sept. 2000 and the Tanggula swarm from Oct. to Nov. of 2000 in the seismogenic process of the earthquake with M_S8.1 of the west Kunlun mountain. |
| Keywords: | The earthquake with M_S8 1 in west Kunlun mountain The field precursor The prognostic anomaly The stress field |
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