| In this study、 in order to statistically discriminate earthquake-induced landslide occurrence from non-occurrence so as to evaluate the earthquake-induced landslide、 we focused on the marginal differences of landslide topography、 interpreted the occurred landslides and non-occurred within the pre-existing landslide topography by using aerial photographs mainly in the Imo River basin and its surrounding area. The result of interpretation shows、 gullies were moderately or well developed along the margin of landslide mass in the pre-existing landslide topography. On the other hand、 non-occurred landslide site were slightly or not so eroded along margin of landslide. The result may indicate that landslide topography with developed marginal erosion tend to be more susceptibility by earthquake motion compared to that slightly eroded one. |
