Eurasia-Africa Plate Boundary region yields new seismographic data

Authors

  • Suzan van der Lee,

    1. ETH Hönggerberg, Zürich, Switzerland
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  • Federica Marone,

  • Mark van der Meijde,

  • Domenico Giardini,

  • Anne Deschamps,

  • Lucia Margheriti,

  • Peter Burkett,

  • Sean C. Solomon,

  • Paulo M. Alves,

  • Makis Chouliaras,

  • Abdurazzag Eshwehdi,

  • Abdunnur Suleiman,

  • Hadi Gashut,

  • Marijan Herak,

  • Ramón Ortiz,

  • José Martin Davila,

  • Arantza Ugalde,

  • Josep Vila,

  • Karim Yelles


Abstract

The tectonic plate boundary between Eurasia and Africa is complex, in that it cannot be characterized as a single discrete plate boundary Deformation near this plate boundary varies from trans-tensional in the Azores archipelago, through strike-slip in the eastern Atlantic basin, to overall compressional between the European and African continents, with extensional sub-domains in the Mediterranean Sea. This complex pattern of deformation, related plate motion, and underlying driving forces leads to strong variations in seismic hazard throughout the region. A better understanding of the plate boundary processes requires knowing crust and upper mantle structure in the region, which is best investigated with three-component, broadband seismic data. To investigate the region's three-dimensional crust and upper mantle structure, we are carrying out a multiinstitutional project (MIDSEA) involving seismologists from 10 countries on the northern, southern, and western sides of the plate boundary.

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