Rupture model of the 1999 Duzce, Turkey, earthquake deduced from high and low frequency strong motion data. Birgoren, G., Sekiguchi, H., & Irikura, K. Geophys. Res. Lett., Mar, 2004. abstract bibtex We investigated the rupture process of the 1999 Duzce Earthquake by applying the multi time-window linear waveform inversion method to low-frequency ground motions (less than or equal to0.5 Hz) in the near source area. Then, we performed the forward modelling of higher frequency ground motions (0.3-10.0 Hz) by the Empirical Green's Function (EGF) method to image the strong motion generation area (SMGA). We also examined the source model to check whether the supershear phenomenon occurred inside the asperities or not. Slip distribution model from the inversion suggests 2 asperities. The maximum slip is obtained as 5 m near the hypocenter. The high first time window front propagation velocity (FTWFPV) and consequently, high apparent rupture velocity found from the investigation of rupture progression indicated that eastern propagation partially showed supershear behaviour. The EGF simulation, which identifies an average rupture velocity (Vr) in SMGA, supports this finding.
@article{birgoren2004,
Abstract = {We investigated the rupture process of the 1999 Duzce
Earthquake by applying the
multi time-window linear waveform inversion method to low-frequency
ground motions (less than or
equal to0.5 Hz) in the near source area. Then, we performed the forward
modelling of higher
frequency ground motions (0.3-10.0 Hz) by the Empirical Green's Function
(EGF) method to image the
strong motion generation area (SMGA). We also examined the source model
to check whether the
supershear phenomenon occurred inside the asperities or not. Slip
distribution model from the
inversion suggests 2 asperities. The maximum slip is obtained as 5 m
near the hypocenter. The high
first time window front propagation velocity (FTWFPV) and consequently,
high apparent rupture
velocity found from the investigation of rupture progression indicated
that eastern propagation
partially showed supershear behaviour. The EGF simulation, which
identifies an average rupture
velocity (Vr) in SMGA, supports this finding.},
Author = {Birgoren, G. and Sekiguchi, H. and Irikura, K.},
Date-Modified = {2010-07-12 11:54:56 -0700},
Issue = {5},
Journal = {Geophys. Res. Lett.},
Month = {Mar},
Title = {Rupture model of the 1999 Duzce, Turkey, earthquake deduced from high and low frequency strong motion data},
Volume = {31},
Year = {2004},
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We also examined the source model to check whether the supershear phenomenon occurred inside the asperities or not. Slip distribution model from the inversion suggests 2 asperities. The maximum slip is obtained as 5 m near the hypocenter. The high first time window front propagation velocity (FTWFPV) and consequently, high apparent rupture velocity found from the investigation of rupture progression indicated that eastern propagation partially showed supershear behaviour. The EGF simulation, which identifies an average rupture velocity (Vr) in SMGA, supports this finding.","author":[{"propositions":[],"lastnames":["Birgoren"],"firstnames":["G."],"suffixes":[]},{"propositions":[],"lastnames":["Sekiguchi"],"firstnames":["H."],"suffixes":[]},{"propositions":[],"lastnames":["Irikura"],"firstnames":["K."],"suffixes":[]}],"date-modified":"2010-07-12 11:54:56 -0700","issue":"5","journal":"Geophys. Res. 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Then, we performed the forward\nmodelling of higher\nfrequency ground motions (0.3-10.0 Hz) by the Empirical Green's Function\n(EGF) method to image the\nstrong motion generation area (SMGA). We also examined the source model\nto check whether the\nsupershear phenomenon occurred inside the asperities or not. Slip\ndistribution model from the\ninversion suggests 2 asperities. The maximum slip is obtained as 5 m\nnear the hypocenter. The high\nfirst time window front propagation velocity (FTWFPV) and consequently,\nhigh apparent rupture\nvelocity found from the investigation of rupture progression indicated\nthat eastern propagation\npartially showed supershear behaviour. The EGF simulation, which\nidentifies an average rupture\nvelocity (Vr) in SMGA, supports this finding.},\n\tAuthor = {Birgoren, G. and Sekiguchi, H. and Irikura, K.},\n\tDate-Modified = {2010-07-12 11:54:56 -0700},\n\tIssue = {5},\n\tJournal = {Geophys. Res. 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