Insights into rock-ice avalanche dynamics by combined analysis of seismic recordings and a numerical avalanche model

Schneider, D; Bartelt, P; Caplan-Auerbach, J; Christen, M; Huggel, C; McArdell, B W

doi:10.1029/2010JF001734

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Schneider, D., Bartelt, P., Caplan-Auerbach, J., Christen, M., Huggel, C., & McArdell, B. W. (2010). Insights into rock-ice avalanche dynamics by combined analysis of seismic recordings and a numerical avalanche model. Journal of Geophysical Research, 115(F04026), 1–20. https://doi.org/10.1029/2010JF001734

Abstract

Rock-ice avalanches larger than 1x106 m3 are high magnitude low frequency events that may occur in all ice-covered high mountain areas around the world and can cause extensive damage if they reach populated regions. The temporal and spatial evolution of the seismic signature from two events was analyzed and recordings at selected stations were compared to numerical model results of avalanche propagation. The first event is a rock-ice avalanche from Iliamna volcano in Alaska which serves as a 'natural laboratory' with simple geometric