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Deformation cycles of subduction earthquakes in a viscoelastic Earth

Author

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  • Kelin Wang

    (Pacific Geoscience Centre, Natural Resources Canada, Geological Survey of Canada, Sidney, British Columbia V8L 4B2, Canada
    School of Earth and Ocean Sciences, University of Victoria, Victoria, British Columbia V8W 3V6, Canada)

  • Yan Hu

    (School of Earth and Ocean Sciences, University of Victoria, Victoria, British Columbia V8W 3V6, Canada
    Present address: Geophysical Institute, University of Alaska, Fairbanks, Alaska 99775, USA.)

  • Jiangheng He

    (Pacific Geoscience Centre, Natural Resources Canada, Geological Survey of Canada, Sidney, British Columbia V8L 4B2, Canada)

Abstract

Subduction zones produce the largest earthquakes. Over the past two decades, space geodesy has revolutionized our view of crustal deformation between consecutive earthquakes. The short time span of modern measurements necessitates comparative studies of subduction zones that are at different stages of the deformation cycle. Piecing together geodetic ‘snapshots’ from different subduction zones leads to a unifying picture in which the deformation is controlled by both the short-term (years) and long-term (decades and centuries) viscous behaviour of the mantle. Traditional views based on elastic models, such as coseismic deformation being a mirror image of interseismic deformation, are being thoroughly revised.

Suggested Citation

  • Kelin Wang & Yan Hu & Jiangheng He, 2012. "Deformation cycles of subduction earthquakes in a viscoelastic Earth," Nature, Nature, vol. 484(7394), pages 327-332, April.
    • Handle: RePEc:nat:nature:v:484:y:2012:i:7394:d:10.1038_nature11032
    DOI: 10.1038/nature11032
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    Cited by:

    1. Xin Wang & Ling Chen & Kelin Wang & Qi-Fu Chen & Zhongwen Zhan & Jianfeng Yang, 2024. "Seismic evidence for melt-rich lithosphere-asthenosphere boundary beneath young slab at Cascadia," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    2. F. Corbi & J. Bedford & P. Poli & F. Funiciello & Z. Deng, 2022. "Probing the seismic cycle timing with coseismic twisting of subduction margins," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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