CORNER FREQUENCY CHARACTERISTIC OF TECTONIC
EARTHQUAKES AND COLLAPSED ONES IN THREE
GORGES REGION
1)Key Laboratory of Earthquake Geodesy, Institute of Seismology, CEA, Wuhan 430071
2)Institute of Geophysics, CEA, Beijing 100081
Abstract Statistical analysis on the earthquakes with magnitude greater than 2.0 in the Three Gorges area shows that the tectonic earthquake and collapsed earthquake have different corner frequency. The majority of the former is above 5.0Hz, and that of the latter is comparatively lower, around 2.5~4.5Hz. It can be taken as a identification basis, whereas, in real application, we should make comprehensive analysis of many other parameters. The collapsed earthquakes mainly occurred in the region with many mines and Karst, such as Xietan, Zigui county, Huofeng, Badong and so on. And the tectonic ones are prone to occur along the faults.
Key words :
tectonic earthquake
collapsed earthquake
corner frequency
Three Gorges reservoir
statistical analysis
Received: 25 December 2012
Published: 18 April 2013
Cite this article:
Zhang Lifen,Yao Yunsheng,Li Jinggang et al. CORNER FREQUENCY CHARACTERISTIC OF TECTONIC
EARTHQUAKES AND COLLAPSED ONES IN THREE
GORGES REGION[J]. jgg, 2013, 33(2): 27-30.
Zhang Lifen,Yao Yunsheng,Li Jinggang et al. CORNER FREQUENCY CHARACTERISTIC OF TECTONIC
EARTHQUAKES AND COLLAPSED ONES IN THREE
GORGES REGION[J]. jgg, 2013, 33(2): 27-30.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2013/V33/I2/27
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