297 earthquake-induced mountain hazards of Mianzhu county were obtained with field investigation and interpretation of remote-sensing images,GIS technique was used to finish the statistical data which were about the relationship between distribution of hazards and environmental factors, including distance from seismogenic faults, lithology, altitude, river, slope and aspect of slope. And research on the responsive mechanism between the distribution of hazards and factors. The main results of the study can be summarized as follows. 1)The distance from seismogenic faults was the leading factor for the distribution of earthquake induced mountain hazards. The high density of earthquake induced mountain hazards was distributed within 8 km from seismogenic faults, and the density in hangingwall of seismogenic faults was obviously higher than that in footwall. The density of hazards in the footwall of seismogenic faults decreased within 10 km and increased from 10 km to 14 km and decreased again from 14 km to 16 km, which was affected by secondary seismogenic faults. 2)Hard rocks were well developed with the highest density of earthquake-induced mountain hazards, and the density increased with the slope of mountain. 3)The release of seismic energy was restricted by landform and river. The high density of earthquake induced mountain hazards was in the high altitude, steep slope, intense incision and high drainage density. 4)The earthquake-induced mountain hazards occurred in higher probability if the ruptured direction of faults was consistent with the gradient direction of topography and the aspect of slope, which was convenient for seismic energy transmitting.
