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Long‐lasting seismic repeaters in the Central Basin of the Main Marmara Fault
Author(s) -
Schmittbuhl J.,
Karabulut H.,
Lengliné O.,
Bouchon M.
Publication year - 2016
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1002/2016gl070505
Subject(s) - seismology , induced seismicity , geology , slip (aerodynamics) , structural basin , geodetic datum , asperity (geotechnical engineering) , seismic gap , creep , fault (geology) , geodesy , geotechnical engineering , geomorphology , engineering , materials science , composite material , aerospace engineering
The Main Marmara Fault which crosses the whole Marmara Sea is a significant seismic gap along the North Anatolian Fault. Here we show that nine long‐lasting strike‐slip seismic repeaters exist below the Central Basin within the seismogenic zone, in a 10 km region where deep creep was previously suggested from the analysis of the local seismicity. The typical recurrence time was 8 months during the 2008–2015 period. The cumulative slip of the repeating sequence appears to be compatible with the regional geodetic slip rate if they are assumed to be part of a large single asperity (10 km). The repeaters also exhibit short‐term crises and are possibly related to bursts of creep.