Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4685950 | Geomorphology | 2010 | 4 Pages |
Abstract
The average shear wave velocity for the top 30 m (Vs30) is one of the simple predictors of earthquake ground motion amplification. We performed a multiple linear regression analysis of the logarithm of observed Vs30 at 1646 locations in Japan with three topographic attributes (slope gradient, surface texture, and the logarithm of elevation) calculated from a 50-m DEM. A Vs30 map was created using the partial regression coefficients. The determination coefficient was 0.318. The development of the estimation method of Vs30 from a DEM will be useful for earthquake vulnerability assessment.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Earth-Surface Processes
Authors
Junko Iwahashi, Izumi Kamiya, Masashi Matsuoka,