Articles | Volume 15, issue 2
https://doi.org/10.5194/nhess-15-247-2015
https://doi.org/10.5194/nhess-15-247-2015
Research article
 | 
04 Feb 2015
Research article |  | 04 Feb 2015

Estimation of successive coseismic vertical offsets using coeval sedimentary events – application to the southwestern limit of the Sea of Marmara's Central Basin (North Anatolian Fault)

C. Beck, C. Campos, K. K. Eriş, N. Çağatay, B. Mercier de Lepinay, and F. Jouanne

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Short summary
Deciphering coseismic offsets from creeping is a key point for an active fault behavior. In a subaqueous setting, coseismic offsets of the seafloor may be sealed off by earthquake-triggered sediments. Along the limit of a pull-apart basin in the Sea of Marmara, successive vertical offsets (up to 1.4m) are deduced from the thicknesses of homogenites which seal-off created scarps. During a 2kyr period, coseismic seafloor offsets are dominant, representing potential tsunami hazards.
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