| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problems that magnitude of the Meteorological Agency does not become larger than around 8.0 due to a problem of saturation of the magnitude when a giant earthquake of around magnitude 9.0 occurs, thus, tidal wave prediction becomes underestimation, which becomes a cause of expansion of tidal wave damages, in addition, also in earthquake early warning, seismic intensity becomes underestimation since the seismic intensity is predicted by a point source model, and a method for estimating expansion of a hypocentral region of the giant earthquake in real time is not developed in a conventional technology. <P>SOLUTION: Temporal and spatial distribution of a hypocentral region is calculated by calculating fault shortest distance from real time seismic intensity by using an empirical formula regarding relation with real time seismic intensity fault shortest distance, and projecting the fault shortest distance on a map. A problem of saturation of magnitude can be checked from expansion of the hypocentral region, and exact tidal wave forecast is expected. In addition, exact prediction of the seismic intensity of earthquake early warning becomes possible from spatial distribution of the hypocentral region. <P>COPYRIGHT: (C)2013,JPO&INPIT |
