LITERATURE SURVEY ON DAMAGING EARTHQUAKES IN URAKAWA TOWN, HOKKAIDO

Abstract

In the previous paper, damage of seven earthquakes occurred in the offshore and inland areas of Hokkaido Hidaka province were surveyed and detailed damage were clarifi ed by each municipalities. In this paper, surveyed earthquakes were expanded to those reported grater than 4 in JMA Intensity scale in Urakawa town, the central town of Hidaka province. Totally 70 earthquakes from 1901 to 2006 were picked up and literature surveys were performed through damage reports and newspaper articles. Among them, 22 earthquakes caused damage in Urakawa town were found and detailed damage by local units were listed and mapped. Damage distribution was discussed in relation with historical formation and soil conditions and vulnerable areas can be revealed.