下圖中紅色虛線就是雪崩的區域。 Recent extreme ice-rock avalanches. (a) Mount Steller, Alaska, a few hours after the avalanche in 2005. The failure zone is indicated by the dashed line. (b) The upper part of the Kolka avalanche path. Initial slope failure (dashed line), the former location of the impacted Kolka glacier (transparent blue), and avalanche path (solid line) are indicated. (c) An avalanche on Iliamna volcano in July 2003. The distance traveled by the avalanche was about 8.5 kilo meters. Photos by R. Homberger, I. Galushkin, and R. Wessels, respectively.
造成這樣大規模雪崩的可能原因，或許和2004-2005年間，標高3000公尺地區7-9月份氣溫異常增高有關（如下圖）。 July through September (JAS) temperature record at 3000 meters (approximately at the Mount Steller summit) from the Yakutat radiosonde, showing the large positive temperature anomaly in 2004 and 2005. The bold curve represents the 1994– 2007 JAS average. Values are plotted with date (month/ day) on the x- axis and temperature on the y- axis.
資料來源：
Recent Extreme Avalanches: Triggered by Climate Change?
Using seismic signals coupled with ground-based and remote temperature data, scientists analyzed a remarkable series of large avalanches that recently occurred in Alaska and the Caucasus.
By C. Huggel et al.
EOS VOLUME 89 NUMBER 47 18 November 2008
