Seismic observations of transient subglacial water-flow beneath MacAyeal Ice Stream, West Antarctica

• Main Authors: Winberry, J. Paul, Anandakrishnan, Sridhar, Alley, Richard B.
• Format: Text
• Language: unknown
• Published: ScholarWorks@CWU 2009
• Subjects: ice stream; Antarctica; tremors; earthquakes; glaciology; Geology; Geophysics and Seismology; MacAyeal Ice Stream; West Antarctica; Antarc*
• Online Access: https://digitalcommons.cwu.edu/cotsfac/204; https://digitalcommons.cwu.edu/cgi/viewcontent.cgi?article=1204&context=cotsfac

New seismic observations of harmonic tremors beneath MacAyeal Ice Stream, West Antarctica are reported. Each of the two tremor events that we recorded during a six week period had sustained arrival of 3 Hz energy for approximately 10 minutes. During that time the source location migrated a few kilom...