The 1999 Izmit Earthquake Sequence in Turkey: Seismological and Tectonic Aspects

Özalaybey, Serdar; Ergin, M.; Aktar, Mustafa; Tapirdamaz, C.; Biçmen, Faruk; Yörük, Ahmet

doi:10.1785/0120000838

Cited by 122 publications

(102 citation statements)

References 29 publications

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“…It adds to the suggestion that this patch in the 150-km-long seismic gap below the Sea of Marmara may be the nucleation point of a future earthquake. The Princes Islands segment may have acted as a barrier to the 1999 Izmit rupture, preventing slip to continue towards Istanbul 34 .…”

Section: Discussionmentioning

confidence: 99%

An earthquake gap south of Istanbul

et al. 2013

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Section: Discussionmentioning

confidence: 99%

An earthquake gap south of Istanbul

et al. 2013

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“…3) verify high seismic activity in the region (Crampin and Ü çer 1975;Dewey 1976;Ayhan et al 1984;Ambraseys and Finkel 1987;Kalafat et al 2000;Ö ncel and Wyss 2000;Ö zalaybey et al 2002).…”

Section: Seismicitymentioning

confidence: 91%

Seismic behaviour of the North Anatolian Fault beneath the Sea of Marmara (NW Turkey): implications for earthquake recurrence times and future seismic hazard

et al. 2008

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Possible long-term seismic behaviour of the Northern strand of the North Anatolian Fault Zone, between western extreme of the 1999 _ Izmit rupture and the Aegean Sea, after 400 AD is studied by examining the historical seismicity, the submarine fault mapping and the paleoseismological studies of the recent scientific efforts. The long-term seismic behaviour is discussed through two possible seismicity models devised from M S C 7.0 historical earthquakes. The estimated return period of years of the fault segments for M1 and M2 seismic models along with their standard deviations are as follows: F4 segment 255 ± 60 and 258 ± 12; F5 segment 258 ± 60 and 258 ± 53; F6 segment 258 ± 60 and 258 ± 53; F7 segment 286 ± 103 and 286 ± 90; F8 segment 286 ± 90 and 286 ± 36. As the latest ruptures on the submarine segments have been reported to be during the 1754-1766 earthquake sequence, and the 1912 mainshock rupture has been evidenced to extend almost all over the western part of the Sea of Marmara, our results imply imminent seismic hazard and, considering the mean recurrence time, a large earthquake to strike the eastern part of the Sea of Marmara in the next two decades.

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“…Should a significant portion of normal faulting be expected this would have a direct impact on the tsunami-potential of the expected major earthquake in the region where historical documents report a non-negligible tsunami hazard (Yalciner et al, 2002). During recent years there has been an increasing effort to improve the PSM of the Marmara region in general and the area south of Istanbul in particular (Özalaybey et al, 2002;Karabulut et al, 2002;Sato et al, 2004;Baris et al, 2007;Bohnhoff et al, 2007). Focusing on the area just south of Istanbul, the Prince Islands represent a prominent location near (2-3 km) the vicinity of the presumed main branch of the NAFZ.…”

Section: The Istanbul/marmara Branch Of the North Anatolian Fault Zonmentioning

confidence: 99%

Passive Seismic Monitoring of Natural and Induced Earthquakes: Case Studies, Future Directions and Socio-Economic Relevance

Bohnhoff

Dresen

Ellsworth

et al. 2009

New Frontiers in Integrated Solid Earth Sciences

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An important discovery in crustal mechanics has been that the Earth's crust is commonly stressed close to failure, even in tectonically quiet areas. As a result, small natural or man-made perturbations to the local stress field may trigger earthquakes. To understand these processes, Passive Seismic Monitoring (PSM) with seismometer arrays is a widely used technique that has been successfully applied to study seismicity at different magnitude levels ranging from acoustic emissions generated in the laboratory under controlled conditions, to seismicity induced by hydraulic stimulations in geological reservoirs, and up to great earthquakes occurring along plate boundaries. In all these environments the appropriate deployment of seismic sensors, i.e., directly on the rock sample, at the earth's surface or in boreholes close to the seismic sources allows for the detection and location of brittle failure processes at sufficiently low magnitudedetection threshold and with adequate spatial resolution for further analysis. One principal aim is to develop an improved understanding of the physical processes occurring at the seismic source and their relationship to the host geologic environment. In this paper we review selected case studies and future directions of PSM efforts across a wide range of scales and environments. These include induced failure within small rock samples, hydrocarbon reservoirs, and natural seismicity at convergent and transform plate boundaries. Each example represents a milestone with regard to bridging the gap between laboratory-scale experi-M. Bohnhoff ( ) Department of Geophysics, Stanford University, Stanford, CA 94305-2215, USA e-mail: marcob@stanford.edu ments under controlled boundary conditions and largescale field studies. The common motivation for all studies is to refine the understanding of how earthquakes nucleate, how they proceed and how they interact in space and time. This is of special relevance at the larger end of the magnitude scale, i.e., for large devastating earthquakes due to their severe socio-economic impact.

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The 1999 Izmit Earthquake Sequence in Turkey: Seismological and Tectonic Aspects

Cited by 122 publications

References 29 publications

An earthquake gap south of Istanbul

An earthquake gap south of Istanbul

Seismic behaviour of the North Anatolian Fault beneath the Sea of Marmara (NW Turkey): implications for earthquake recurrence times and future seismic hazard

Passive Seismic Monitoring of Natural and Induced Earthquakes: Case Studies, Future Directions and Socio-Economic Relevance

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