Estimating the Geological Strength Index (GSI) in Regional Seismic-Landslide Zonation Using the Empirical Regression Model

Table 1

The slope aspect categories and weight.

N	Slope aspect	Weight
1	North (N)	4
2	Northwest (NW)	4
3	West (W)	3
4	Northwest (NW)	3
5	South (S)	2
6	Northeast (NE)	2
7	South (S)	1
8	Southeast (SE)	1