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Science. 2006 Mar 24;311(5768):1756-8.

Seasonality and increasing frequency of Greenland glacial earthquakes.

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  • 1Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, USA. ekstrom@seismology.harvard.edu

Abstract

Some glaciers and ice streams periodically lurch forward with sufficient force to generate emissions of elastic waves that are recorded on seismometers worldwide. Such glacial earthquakes on Greenland show a strong seasonality as well as a doubling of their rate of occurrence over the past 5 years. These temporal patterns suggest a link to the hydrological cycle and are indicative of a dynamic glacial response to changing climate conditions.

PMID:
16556839
[PubMed]
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