Investigation of Tombstones Fall-Down Rates and Damages of Wooden Houses Due to the 2016 Kumamoto Earthquake

- Comparative Examination of Near-Fault Region and Mashiki-machi Miyazono -

Abstract

We investigated tombstone fall-down rates and damages rates of wooden houses from April 27 to 29 in 2016 to estimate the distribution of the ground motion intensity around the near source region of the 2016 Kumamoto Earthquake (MJ7.3), Japan. We investigated 2 regions; Mashiki-machi Miyazono where observed JMA seismic intensity 7 and region where surface earthquake faults appeared. According to the result of tombstone fall-down rates, there is not so different in 2 regions. Almost 100% tombstones fell down in some grave sites. But damages rates of wooden houses differ from each other. In Mashiki-machi Miyazono 61% wooden houses were collapsed. In the region where surface earthquake faults appeared damages rates of wooden houses were 0-33%.