2004 Volume 20 Pages 1-4
Many earthquakes and tsunamis had caused great damages to our country repeatedly. Especially, giant earthquakes had occurred periodically along Suruga-Nankai trough; those intervals are 90 to 150 years, and the average is 110 years. Because 60 years already passed since the last earthquake occurred in this region, we should make a plan of countermeasure for earthquake and tsunami in these 30 years. In this paper, damages by 1983 Nihonkai-Chubu earthquake, 1993 Hokkaido-Nansei-Oki earthquake and 2003 Tokachi-Oki earthquake are shown and the instructions of those hazards are analyzed.
