EARTHQUAKE-TRIGGERED LANDSLIDES IN THE LOESS PLATEAU AND ITS ADJACENT AREAS

The Loess Plateau area of China, with an area 62.46104km2 and characterized by high tectonic activities, is an area with a large number of and prone of landslides and debris flows. It has a rich historical earthquakes and triggered landslides in the area. This study summarizes the earthquakes and triggered landslides in Loess Plateau and its adjacent areas(100-km-buffer zone). The results show that there are 395 earthquake records of magnitude M5 in the Loess Plateau and its adjacent areas. Among them, there were 6 earthquakes of magnitude M8 or larger, 20 earthquakes between M7 and M8, 74 of 6 M 7, and 295 events of 5 M 6. Among the 395 earthquakes, there are 98 earthquakes have coseismic landslide records or detailed information. The information of landslides triggered by these earthquake is briefly introduced. This study also briefly introduces the landslides triggered by four earthquakes, such as the 2013 Minxian M6.7, 1920 Haiyuan M8.5, 1927 Gulang M8, and 1995 Yongdeng M5.8 events. Finally, the research prospects of earthquake-triggered landslide in Loess Plateau and its adjacent areas is proposed. This study can provide important basic information for scientific research and prevention and reduction of earthquakes and associated landslides in the Loess Plateau and adjacent areas.