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Coulomb pre-stress and fault bends are ignored yet vital factors for earthquake triggering and hazard

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Listed:
  • Z. K. Mildon

    (University of Plymouth
    University College London)

  • G. P. Roberts

    (Birkbeck, University of London)

  • J. P. Faure Walker

    (University College London)

  • S. Toda

    (Tohoku University)

Abstract

Successive locations of individual large earthquakes (Mw > 5.5) over years to centuries can be difficult to explain with simple Coulomb stress transfer (CST) because it is common for seismicity to circumvent nearest-neighbour along-strike faults where coseismic CST is greatest. We demonstrate that Coulomb pre-stress (the cumulative CST from multiple earthquakes and interseismic loading on non-planar faults) may explain this, evidenced by study of a 667-year historical record of earthquakes in central Italy. Heterogeneity in Coulomb pre-stresses across the fault system is >±50 bars, whereas coseismic CST is

Suggested Citation

  • Z. K. Mildon & G. P. Roberts & J. P. Faure Walker & S. Toda, 2019. "Coulomb pre-stress and fault bends are ignored yet vital factors for earthquake triggering and hazard," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10520-6
    DOI: 10.1038/s41467-019-10520-6
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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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