Abstract
Based on the case histories of slope failure triggered by five Japanese earthquakes, a statistical analysis using the theory of quantification II is applied to evaluate the slope failure potential from ground motion intensity and site parameters included in the Digital National Land Information. An empirical equation is derived to estimate the slope failure potential from peak ground velocity, slope gradient, geomorphological unit and sediment type. The predictions are conducted for five earthquakes, and show good agreements with the observations. By adding the proposed method to the existing mapping system for ground motion and liquefaction potential evaluation, the system for integrated seismic hazard mapping is developed.
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