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Showing 1–5 of 5 results
Advanced filters: Author: Sridhar Anandakrishnan Clear advanced filters

  • Large earthquakes can trigger seismicity in remote regions. Analysis of seismic data from Antarctica reveals ice quakes coincident with passing seismic waves from the 2010 Chile earthquake, suggesting that the ice sheet is sensitive to such triggers.

    • Zhigang Peng
    • Jacob I. Walter
    • Sridhar Anandakrishnan
    Research
    Nature Geoscience
    Volume: 7, P: 677-681

  • Several volcanoes exist in Marie Byrd Land, a highland range in West Antarctica, but none were thought to be currently active. Analysis of seismic data from the region shows that magma could be moving beneath the West Antarctic Ice Sheet, with potential implications for ice flow.

    • Amanda C. Lough
    • Douglas A. Wiens
    • Terry J. Wilson
    Research
    Nature Geoscience
    Volume: 6, P: 1031-1035

  • This report combines long-period surface-wave observations with simultaneous GPS measurements of ice displacement to study the tidally modulated stick–slip motion of the Whillans Ice Stream in West Antarctica. Such long period seismic waves are useful for detecting and studying sudden ice movement, but are insensitive to the total amount of slip.

    • Douglas A. Wiens
    • Sridhar Anandakrishnan
    • Matt A. King
    Research
    Nature
    Volume: 453, P: 770-774

  • Subglacial seismicity reveals information about glacier behaviour. Analysis of repeated seismic events beneath an Antarctic outlet glacier is consistent with sliding of debris-laden ice over a bedrock asperity with an event frequency that is modulated by the ocean tides.

    • Lucas K. Zoet
    • Sridhar Anandakrishnan
    • Douglas A. Wiens
    Research
    Nature Geoscience
    Volume: 5, P: 623-626

  • Despite observations from a hot-water-drilled access hole showing warm ocean waters beneath Thwaites Glacier Eastern Ice Shelf, the basal melt rate is strongly suppressed due to the low current speeds and strong density stratification.

    • Peter E. D. Davis
    • Keith W. Nicholls
    • Keith Makinson
    ResearchOpen Access
    Nature
    Volume: 614, P: 479-485