LIQUEFACTION DURING THE NOTO HANTO EARTHQUAKE IN 2007 Atsunori NUMATA, Noboru KAMIAKITO, Shigeru MIWA and Takaaki IKEDA

Abstract

The Noto Hanto Earthquake occurred on 9: 42, March 25, 2007. The magnitude of this earthquake was 6.9 (determined by JMA) and the maximum JMA seismic intensity was upper 6. Liquefaction of soil was observed at many places in Noto peninsula during this earthquake. Liquefaction of soil was also occurred in Noto peninsula during the Noto Hanto-oki earthquake in 1993. Some liquefaction phenomena were observed the same site where liquefaction occurred during the previous earthquake. Characteristics of liquefaction sites, damage due to liquefaction, re-liquefaction, grain size distribution of sand boil and results of liquefaction judgment calculated at three sites are discussed in this paper.