Localised thickening and grounding of an Antarctic ice shelf from tidal triggering and sizing of cryoseismicity

• Published in: Earth and Planetary Science Letters
• Main Authors: Pirli, Myrto, Hainzl, Sebastian, Schweitzer, Johannes, Köhler, Andreas, Dahm, Torsten (Prof. Dr.)
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2018
• Subjects: ddc:550; Institut für Umweltwissenschaften und Geographie; Antarctic; Austral; East Antarctica; Fimbul Ice Shelf; Antarc*; Antarctica; Ice Shelf
• Online Access: https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/50983; https://doi.org/10.1016/j.epsl.2018.09.024

We observe remarkably periodic patterns of seismicity rates and magnitudes at the Fimbul Ice Shelf, East Antarctica, correlating with the cycles of the ocean tide. Our analysis covers 19 years of continuous seismic recordings from Antarctic broadband stations. Seismicity commences abruptly during au...