Case histories of relationship between wooden house damage and lateral geologic inhomogeneity

Wooden house damages caused during three of the past earthquake in Japan, the 1923 Kanto, the 1978 Mijagi-Ken-Oki, and the 1987 Chiba-Ken-Toho-Oki earthquakes have already been studied extensively and in detail. Moreover, soil condition surveys were conducted in the areas where structursl danaged were predominant have been investigated. In this paper, in order to study the local site effects pf lateral geologic inhomogeneity on surface ground motion during earthquakes, relationship between wooden house damaged due to resonance of ground motion and the ground condition of the damaged house distributed area surveys.(AU)