RESEARCH ON RELATIONSHIP BETWEEN TECTONIC STRESSFIELD AND STRONG SEISMIC ACTIVITY IN YUNNAN AREA
Li Yujiang 1) ;Chen Lianwang 1) ;Li Hong 2) ; and Ye Jiyang 1)
1) Institute of Crustal Dynamics, China Earthquake Administration, Beijing 1000852) Earthquake Administration of Beijing Municiplity, Beijing 100080
Abstract On the basis of the 3D velocity structure, the active tectonic blocks, the seismic activity, etc. in Yunnan area, a 3D finite element model is established. By determining the model’s boundary conditions based on the GPS data, the tectonic stress field in Yunnan area is simulated numerically. Through comparing the tectonic stress field with the M6 earthquake distribution in recent one hundred years, it is found that the stress transitional sections correspond well with the occured strong earthquake and three potential seismic risk regions are given.
Key words ：
Yunnan area
tectonic stress field
the maximum shear stress
strong seismic activity
seismic risk region
Received: 01 January 1900
Corresponding Authors:
Li Yujiang
Cite this article:
Li Yujiang ,Chen Lianwang ,Li Hong et al. RESEARCH ON RELATIONSHIP BETWEEN TECTONIC STRESSFIELD AND STRONG SEISMIC ACTIVITY IN YUNNAN AREA[J]. , 2009, 29(4): 26-29.
Li Yujiang ,Chen Lianwang ,Li Hong et al. RESEARCH ON RELATIONSHIP BETWEEN TECTONIC STRESSFIELD AND STRONG SEISMIC ACTIVITY IN YUNNAN AREA[J]. jgg, 2009, 29(4): 26-29.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2009/V29/I4/26
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