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STUDY OF THE STRAIN ANOMALY ABOUT THE FAR FIELD BEFORE THE EARTHQUAKE WITH M_S8.1 IN WEST KUNLUN MOUNTAIN

Tao Tian

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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.

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What this paper is about

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.

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Available 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.

Key concepts: Geology, Earthquake swarm, Plateau (mathematics), Seismology, Stress field, Anomaly (physics), Borehole, Intraplate earthquake

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STUDY OF THE STRAIN ANOMALY ABOUT THE FAR FIELD BEFORE THE EARTHQUAKE WITH M_S8.1 IN WEST KUNLUN MOUNTAIN — Research Paper | ScholarLens