TY - JOUR AU - Takayuki Hayashi, AU - Harumi Yashiro, PY - 2020/01/27 Y2 - 2024/03/29 TI - APPLICATION OF DEAGGREGATION OF SPATIAL PROBABILISTIC SEISMIC HAZARD FOR DISASTER PREPAREDNESS JF - GEOMATE Journal JA - INTERNATIONAL JOURNAL OF GEOMATE VL - 18 IS - 65 SE - Articles DO - UR - https://geomatejournal.com/geomate/article/view/419 SP - 164-170 AB - <p><br>For regional disaster prevention, it is important to understand the area of occurrence of strong <br>ground motion and its occurrence probability. The spatial probabilistic seismic hazard analysis (SPSHA) <br>proposed by the authors can provide this information. In SPSHA, the results are expressed as a relation between <br>the area where a given seismic intensity is generated and the exceedance probability. Results obtained from <br>such a probabilistic approach include the effects of various seismic sources. Therefore, to efficiently describe <br>an earthquake scenario for regional earthquake countermeasures, it is necessary to understand the impact of <br>each earthquake source. In this study, we propose a seismic hazard deaggregation for SPSHA, and present a <br>method for quantitatively understanding the earthquakes that affect the target region. As a practical application, <br>SPSHA is conducted for Kanagawa prefecture in Japan. We conducted seismic hazard deaggregation for whole <br>and sub-area, and discussed the differences in dominant earthquakes among areas and the use of such <br>information in disaster prevention.</p> ER -