Lower Haupapa/Tasman Glacier and Tasman Glacier Seismic Network (TG) stations (red triangles showing seismic sensors, red diamonds showing collocated seismic sensors and Global Navigation Satellite System receivers) and seismic event locations (blue circles). Credit: Taylor-Offord et al. (2019)
Rainy days make glaciers move and shake
By Alka Tripathy-Lang and Wendy Bohon
January 6, 2020
It is the growth of cavities at the ice-rock interface that is driving crevasse growth at the glacier’s surface. Lagging behind the zone of cavitation is an increase in seismicity characteristic of crevasse growth—icequakes.
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