Statistics – Computation
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30rde10k&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 24, pp. SDE 10-1, CiteID 2277, DOI 10.1029/2003GL018074
Statistics
Computation
Exploration Geophysics: Computational Methods, Seismic, Seismology: Continental Crust (1242), Seismology: Seismicity And Seismotectonics
Scientific paper
We present a 2-D tomographic seismic velocity image in eastern Marmara region along a N-S trending 120-km long seismic refraction profile, which traverses the northern branches of North Anatolian Fault (NAF) and tectonically active Çınarcık Basin, in the Sea of Marmara. The 2-D velocity model, which is constrained down to upper crustal depth of 7 km, shows significant heterogeneities in the upper crust displayed by well-constrained velocity anomalies. The seismicity observed following the 17 August, 1999 İzmit earthquake concentrates in three distinct zones and takes place near the inferred low velocity zones and below high velocity anomalies obtained from tomographic inversion. This correlation is interpreted as a result of intensely sheared zones of deformation imposed by strike-slip motion of the northern branches of the North Anatolian Fault.
Aktar Mustafa
Karabulut Hayrullah
Kocaoğlu Argun
Özalaybey Serdar
Selvi Oğuz
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