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.
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.