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    Slip on a mapped normal fault for the 28th December 1908 Messina earthquake (Mw 7.1) in Italy

    Meschis, M. and Roberts, Gerald P. and Mildon, Z.K. and Robertson, Jennifer and Michetti, A.M. and Faure Walker, J.P. (2019) Slip on a mapped normal fault for the 28th December 1908 Messina earthquake (Mw 7.1) in Italy. Scientific Reports 9 , p. 6481. ISSN 2045-2322. (In Press)

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    Abstract

    The 28th December 1908 Messina earthquake (Mw 7.1), Italy, caused >80,000 deaths and transformed earthquake science by triggering the study of earthquake environmental effects worldwide, yet its source is still a matter of debate. To constrain the geometry and kinematics of the earthquake we use elastic half-space modelling on non-planar faults, constrained by the geology and geomorphology of the Messina Strait, to replicate levelling data from 1907 – 1909. The novelty of our approach is that we (a) recognise the similarity between the pattern of vertical motions and that of other normal faulting earthquakes, and (b) for the first time model the levelling data using the location and geometry of a well-known offshore capable fault. Our results indicate slip on the capable fault with a dip to the east of 70o and 5 m dip-slip at depth, with slip propagating to the surface on the sea bed. Our work emphasises that geological and geomorphological observations supporting maps of capable non-planar faults should not be ignored when attempting to identify the sources of major earthquakes.

    Metadata

    Item Type: Article
    School: Birkbeck Schools and Departments > School of Science > Earth and Planetary Sciences
    Depositing User: Gerald Roberts
    Date Deposited: 31 May 2019 13:59
    Last Modified: 28 Jul 2019 02:35
    URI: http://eprints.bbk.ac.uk/id/eprint/27692

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