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Highly variable recurrence of tsunamis in the 7,400 years before the 2004 Indian Ocean tsunami

Author

Listed:
  • Charles M. Rubin

    (Earth Observatory of Singapore, Nanyang Technological University
    Asian School of the Environment, Nanyang Technological University)

  • Benjamin P. Horton

    (Earth Observatory of Singapore, Nanyang Technological University
    Asian School of the Environment, Nanyang Technological University
    Rutgers University)

  • Kerry Sieh

    (Earth Observatory of Singapore, Nanyang Technological University
    Asian School of the Environment, Nanyang Technological University)

  • Jessica E. Pilarczyk

    (University of Southern Mississippi, Stennis Space Center)

  • Patrick Daly

    (Earth Observatory of Singapore, Nanyang Technological University)

  • Nazli Ismail

    (Faculty of Mathematic and Natural Sciences, Syiah Kuala University)

  • Andrew C. Parnell

    (School of Mathematics and Statistics, Insight Centre for Data Analytics, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland)

Abstract

The devastating 2004 Indian Ocean tsunami caught millions of coastal residents and the scientific community off-guard. Subsequent research in the Indian Ocean basin has identified prehistoric tsunamis, but the timing and recurrence intervals of such events are uncertain. Here we present an extraordinary 7,400 year stratigraphic sequence of prehistoric tsunami deposits from a coastal cave in Aceh, Indonesia. This record demonstrates that at least 11 prehistoric tsunamis struck the Aceh coast between 7,400 and 2,900 years ago. The average time period between tsunamis is about 450 years with intervals ranging from a long, dormant period of over 2,000 years, to multiple tsunamis within the span of a century. Although there is evidence that the likelihood of another tsunamigenic earthquake in Aceh province is high, these variable recurrence intervals suggest that long dormant periods may follow Sunda megathrust ruptures as large as that of the 2004 Indian Ocean tsunami.

Suggested Citation

  • Charles M. Rubin & Benjamin P. Horton & Kerry Sieh & Jessica E. Pilarczyk & Patrick Daly & Nazli Ismail & Andrew C. Parnell, 2017. "Highly variable recurrence of tsunamis in the 7,400 years before the 2004 Indian Ocean tsunami," Nature Communications, Nature, vol. 8(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms16019
    DOI: 10.1038/ncomms16019
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    Cited by:

    1. Muhammad Taufiq Rafie & David P. Sahara & Phil R. Cummins & Wahyu Triyoso & Sri Widiyantoro, 2023. "Stress accumulation and earthquake activity on the Great Sumatran Fault, Indonesia," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 116(3), pages 3401-3425, April.

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