Abstract
The West of Kunlun Mountain Pass Ms8.1 earthquake in 2001 on the Qinhai-Tibet plateau is one of largest earthquakes in the permafrost regions on the globe. This earthquake event caused the ground surface rupture zone having the length of 426 km with the ground fissures about 10 cm wide, seismic subsidence up to value of 15 cm. Moreover, the earthquake triggered liquefactions along shores of lakes and banks of rivers, landslides of a dam and collapse of slopes, and avalanches. The characteristics of the earthquake disasters were studied through on-site investigation, geophysical survey laboratory tests of the soil samples and numerical analysis of the dynamic behaviors. Furthermore, the relevant prevention measures for engineering projects were proposed which would provide valuable scientific basis for earthquake disaster mitigation in cold regions.
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