Seasonality and increasing frequency of Greenland glacial earthquakes |
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| Authors: | Ekström Göran Nettles Meredith Tsai Victor C |
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| Affiliation: | Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, USA. ekstrom@seismology.harvard.edu |
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| 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. |
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