平成30年 (2018年) 6月18日の大阪府北部の地震 (M_[JMA]6.1) の概要とそれによる強震動と被害の特徴

Abstract

In the morning of June 18th 2018, a Japan Meteorological Agency (JMA) magnitude 6.1 earthquake occurred in the region of the northern Osaka Prefecture at a depth of 13km. The highest observed JMA seismic intensity was 6-, and a large population was exposed to JMA-SI 5-, since it occurred beneath a densely populated urban area. Despite the high seismic intensity, the number of collapsed houses were limited. On the contrary, the number of houses that suffered partial damage, mostly damage to roof top tiles, was very high. In this paper, the summary of the earthquake and the characteristics of the resulted strong motion and its consequences are reported.