Setsuo HAYASI, Kanji KONDO, Hiroshi KAWABE, Masaaki HANAOKA, Kazuya AKIYAMA, Shinya NUMAMOTO, Keiji MUKAI, Mutsutoshi FUKUDA and Shigeru SUZUKI
Abstract
In this report, characteristics of sediment related disasters triggered by
the Noto]Hantou Earthquake was described. And theyare summarized as follows.
The area where the sediment disasters occurred was almost located within the
range of 500]700 gal of the earthquake acceleration except small]scale slope
failure disasters. Slope failures which occurred around the surface part of
earthquake fault located comparatively high density. As for the slope failures
of the inland, damages occurred mainly in the consolidated or semisolid sedimentary
layer of Miocene by presumed from the house damage and geological features of
the slope failure situation. By the examination of earthquake acceleration and
velocity component, the earthquake movement reached to the mountanious slope
covered with thin topsoil layer and coastal erosion cliff in Wajima]city and
Shika]town estimated at the same level as the earthquake record of Togi observation
point.
Key wordsFearthquake, Noto]Hantou, slope failure, accelaration, damage