Journal of Glaciology, Vol. 60, No. 221, 2014 doi: 10.3189/2014JoG13J143 409 Physical and societal statistics for a century of snow-avalanche hazards on Sakhalin and the Kuril Islands (1910±2010) 1 2 3 1 Evgeny A. PODOLSKIY, Kaoru IZUMI, Vladimir E. SUCHKOV, Ã Nicolas ECKERT 1IRSTEA (UR ETGR) ± Centre de Grenoble, Saint-Martin-d'HeÁres, France E-mail:
[email protected] 2Research Institute for Natural Hazards and Disaster Recovery, Niigata University, Niigata, Japan 3Sakhalin Hidrometeorological Service (RPLC, Sakhalin UGMS), Yuzhno-Sakhalinsk, Russia ABSTRACT. The analysis of historical avalanche data is important when developing accurate hazard maps. The record of snow-avalanche disasters on Sakhalin and the Kuril Islands is incomplete, due to the historical division into periods of Japanese and Russian rule. Here we combine and analyze data from Japanese and Russian sources to reconstruct a continuous record of avalanche catastrophes in the region from 1910 to 2010. Despite the relatively small scale of the majority of catastrophic avalanches, with a total vertical drop <200 m, we document evidence that places the region among the most avalanche- affected areas in the world. In total, 756 fatalities and >238 injuries have occurred in 275 incidents over a 100 year period (two-thirds of those killed were Japanese). This death toll is higher than that in Canada, New Zealand or Iceland, or non-recreational fatalities in France. A wave of avalanche disasters (1930s±60s) following intense colonization of Sakhalin and the Kuril Islands is evident. Although this `wave' could be considered a local issue of the past, many presently developing countries may face similar situations.