Coseismic Faulting Complexity of the 2019 Mw 5.7 Silivri Earthquake in the Central Marmara Seismic Gap, Offshore Istanbul
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10473393" target="_blank" >RIV/00216208:11320/23:10473393 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=A0hS3rNCcT" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=A0hS3rNCcT</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1785/0220220111" target="_blank" >10.1785/0220220111</a>
Alternative languages
Result language
angličtina
Original language name
Coseismic Faulting Complexity of the 2019 Mw 5.7 Silivri Earthquake in the Central Marmara Seismic Gap, Offshore Istanbul
Original language description
The submarine Main Marmara fault is overdue for an M > 7 earthquake in direct vicinity to the Istanbul megacity and the only segment of the right-lateral North Anatolian fault zone that has not been activated since 1766. On 26 September 2019, an Mw 5.7 earth-quake occurred offshore Silivri (west of Istanbul), stimulating the discussions on a future major earthquake. The predominant faulting style for this pending earthquake remains enigmatic. Here, we study the coseismic rupture evolution of the 2019 Silivri earthquake and decipher the multitype-faulting aspects by a nonstandard approach. The event was dominated by a large compensated linear vector dipole component, of about -50%, that we interpret as a consecutive strike-slip and thrust double-couple episode, closely collocated in space and time. Because of local variations of the fault geometry at the eastern boundary of the central basin, crustal shortening and related thrust faulting are expected. A striking observation is the almost synchronous occur-rence of both faulting types during a single earthquake. The earthquake complexity here is reported for the first time in the Sea of Marmara region and has to be considered in future rupture scenarios of an expected M > 7 event, with subsequent consequences for tsunami hazard and risk.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10500 - Earth and related environmental sciences
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Seismological Research Letters
ISSN
0895-0695
e-ISSN
1938-2057
Volume of the periodical
94
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
75-86
UT code for WoS article
000907165300003
EID of the result in the Scopus database
2-s2.0-85145608955