Physics
Scientific paper
Jul 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000georl..27.1969y&link_type=abstract
Geophysical Research Letters, Volume 27, Issue 13, p. 1969-1972
Physics
21
Seismology, Seismology: Earthquake Dynamics And Mechanics, Seismology: Earthquake Parameters
Scientific paper
The rupture process of the 1999 Turkey earthquake is examined using both near-field strong motion data and teleseismic body wave data. The derived source parameters are as follows: (strike,dip,slip)=(268°,86°,180°), nearly pure strike-slip; the seismic moment, Mo=1.7×1020Nm (Mw=7.4); the source duration=20sec the fault length=70km the fault width=15km. The rupture process is characterized by an asymmetric bilateral rupture propagation and smooth slip. It consists of two major fault segments, a rupture propagating to the west and a second rupture propagating to the east. The maximum dislocation and the maximum dislocation velocity are 6.3 m and 2.7 m/s, respectively, both found at the former segment. The average dislocation is about 4 m. The extent of the coseismic rupture suggests that a considerable part of the anticipated seismic gap remains unruptured.
Kikuchi Masayuki
Yagi Yuji
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