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    Slip distribution and source parameters of the 20 July 2017 Bodrum-Kos earthquake (Mw6.6) from GPS observations

    Access Status
    Fulltext not available
    Authors
    Tiryakioglu
    Aktug, B.
    Yigit, Cemal Ozer
    Yavasoglu, H.
    Sozbilir, H.
    Özkaymak
    Poyraz, F.
    Taneli, E.
    Bulut, F.
    Dogru, A.
    Özener, H.
    Date
    2018
    Type
    Journal Article
    
    Metadata
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    Citation
    Tiryakioglu and Aktug, B. and Yigit, C.O. and Yavasoglu, H. and Sozbilir, H. and Özkaymak and Poyraz, F. et al. 2018. Slip distribution and source parameters of the 20 July 2017 Bodrum-Kos earthquake (Mw6.6) from GPS observations. Geodinamica Acta. 30 (1): pp. 1-14.
    Source Title
    Geodinamica Acta
    DOI
    10.1080/09853111.2017.1408264
    ISSN
    0985-3111
    School
    School of Earth and Planetary Sciences (EPS)
    URI
    http://hdl.handle.net/20.500.11937/71907
    Collection
    • Curtin Research Publications
    Abstract

    © 2017 The Author(s). Greek-Turkish boundary near the cities Kos and Bodrum has been shaken on July 20, 2017 by a Mw6.6 earthquake. The mainshock is located offshore and did not generate an on-land surface rupture. Analyzing pre- and post-earthquake continuous/survey-type static GPS observations, we investigated co-seismic surface displacements at 20 sites to characterize source parameters and slip-distribution of the mainshock. Fault plane solutions as well as co-seismic slip distribution have been acquired through the inversion of co-seismic GPS displacements modeling the event as elastic dislocations in a half space. Fault plane solution shows a southward dipping normaltype fault segment extending a depth down to ~12 km, which remains within the brittle upper crust. Results from the distributed slip inversion show that the mainshock activated a ~65 km fault section, which has three high slip patches, namely western, central and eastern patches, where the coseismic slips reach up to 13, 26, and 5 cm, respectively. This slip pattern indicates that the pre-earthquake coupling, which is storing the slip deficit, occurred on these three patches.

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