GROUND MOTION PREDICTION EQUATIONS FOR ABSOLUTE VELOCITY RESPONSE SPECTRA (1-10 S) IN JAPAN FOR EARTHQUAKE EARLY WARNING

Abstract

We constructed ground motion prediction equation (GMPE) for absolute velocity response spectra in the period range of 1 to 10 s with the primary aim of providing early warning of long-period ground motions in Japan during moderate to large magnitude earthquakes. We found that the spatial variability of the observed long-period intensities can be reproduced in broad areas within a difference of one intensity by using the methodology proposed in this study that requires the magnitude and distance to be determined promptly.