Draft:Icequake
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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.[1]. Icequakes are distinct from glacial earthquakes in that the latter are much larger scale and therefore regionally or globally detectable with modern seismic networks [2]. Icequakes, in contrast, are smaller and typically detected with local-scale seismic networks[3]. 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 [4][5] and iceberg calving[6]
References[edit]
- ^ Aster, R. C.; Winberry, J. P. (2017). "Glacial seismology". Reports on Progress in Physics. 80 (12). Bibcode:2017RPPh...80l6801A. doi:10.1088/1361-6633/aa8473. PMID 28782729. S2CID 41291603.
- ^ Nettles, Meredith; Ekström, Göran (2010). "Glacial Earthquakes in Greenland and Antarctica". Annual Review of Earth and Planetary Sciences. 38: 467–491. Bibcode:2010AREPS..38..467N. doi:10.1146/annurev-earth-040809-152414.
- ^ Neave, K. G.; Savage, J. C. (1970). "Icequakes on the Athabasca Glacier". Journal of Geophysical Research. 75 (8): 1351–1362. Bibcode:1970JGR....75.1351N. doi:10.1029/JB075i008p01351.
- ^ Anandakrishnan, S.; Alley, R. B. (1994). "Ice Stream C, Antarctica, sticky spots detected by microearthquake monitoring". Annals of Glaciology. 20: 183–186. Bibcode:1994AnGla..20..183A. doi:10.3189/1994AoG20-1-183-186.
- ^ Lipovsky, Bradley Paul; Meyer, Colin R.; Zoet, Lucas K.; McCarthy, Christine; Hansen, Dougal D.; Rempel, Alan W.; Gimbert, Florent (2019). "Glacier sliding, seismicity and sediment entrainment". Annals of Glaciology. 60 (79): 182–192. Bibcode:2019AnGla..60..182L. doi:10.1017/aog.2019.24.
- ^ Amundson, J. M.; Truffer, M.; Lüthi, M. P.; Fahnestock, M.; West, M.; Motyka, R. J. (2008). "Glacier, fjord, and seismic response to recent large calving events, Jakobshavn Isbræ, Greenland". Geophysical Research Letters. 35 (22). Bibcode:2008GeoRL..3522501A. doi:10.1029/2008GL035281.