Predicting the Threshold of Earthquake Damage Using K-NET and KiK-NET dta and Damage Reports by Fire and Disaster Management Agency

－An Application for the 2001 Geiyo Earthquake－

Abstract

The present study intended to improve estimation by adopting "threshold''concept. Earthquake damage threshold in the shaking intensity(measured in terms of JMA Scale)produces either building damage or casualties. Based on the data on strong shaking intensity and damage obtained at the 2001 Geiyo Earthquake, it was found that the threshold for minor building damage is 3.1 JMA Scale, half building damage 4.1, minor injury 3.7, and severe injury 4.3．