Which earthquake is less in Chengxian County and Kangxian County, Gansu Province?

1. Geological conditions: The geological conditions in Chengxian County are relatively stable, with no obvious earthquake fault zone and relatively stable crustal structure. Kangxian county is located near the earthquake fault zone, with complex geological structure and relatively high seismic activity frequency.

2. Seismic activity zone: Chengxian county is located at the edge or periphery of the seismic activity zone, with relatively little seismic activity; Kang county is located in the core area of seismic activity zone, and the earthquake frequency is high. Therefore, there are few earthquakes in Chengxian County, Gansu Province.