Journal of the Japan Society of Erosion Control Engineering, Vol.60,No.2,2007

Slush avalanche,which had attacked gFujisan SkylinehRoad on March 25,2007 at Mt.Fuji

Ryo MOROHASHI, So ANMA and Masaaki HANAOKA



Abstract

A spring storm attacked the central Japan on March 25, 2007 and brought heavy rainfall (total precipitation was excess 200mm/15hour) to Mt. Fuji slopes with snowy and subarctic circumstances. Many slush avalanches, as well as surface avalanches, occurred on the western, southern and eastern slopes above timberline. Some of slush avalanches originated from southern slope slid down 0.8`1.1km and damaged 14 traffic utilities and 2 houses. Fortunately road and houses wore closed and had no casualties. The avalanche chutes almost same as 1976 and 1988 events.


Key wordsFMt. Fuji, slush avalanche, avalanche chute, soil freezing
Japan Society of Erosion Control Engineering
Sabo Kaikan Bekkan 3F, 2-7-5 Hirakawa-cho, Chiyoda-ku, Tokyo
Phone +81-3-3222-0747 Fax +81-3-3230-6759
http://www.jsece.or.jp/
Mail jimu@jsece.or.jp