Table 2.

principal component analysis (PCA).

Conditioning factors	Eigen value	Proportion	Eigen value total
Linear density of river	439.846	46.38%	46.38%
Linear density of road	367.880	38.79%	85.18%
Slope	75.437	7.96%	93.13%
Lithology	18.325	1.93%	95.07%
Peak Ground Acceleration	14.236	1.50%	96.57%
Landform	13.091	1.38%	97.95%
Elevation	10.895	1.15%	99.10%
Plan curvature	6.383	0.67%	99.77%
Profile curvature	1.323	0.14%	99.91%
Aspect	0.606	0.06%	99.97%
Seismic Response Spectrum Characteristics	0.250	0.03%	100.00%