Draft:Icequake

The term icequake refers to a wide variety of rapid deformation processes in glaciers, icebergs, ice shelves, and ice sheets that generate seismic waves. Specific examples include firn collapse events; crevasse growth, iceberg calving or collision, ice shelf rifting, stick-slip motion along the ice-bed interface. . Icequakes are distinct from glacial earthquakes in that the latter are much larger scale and therefore regionally or globally detectable with modern seismic networks. Icequakes, in contrast, are smaller and typically detected with local-scale seismic networks. Icequakes are studied by glaciologists because their occurrence is related to glacier and ice sheet stability, specifically with regard to the physics of glacier sliding and iceberg calving