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Extended nucleation of the 1999 Mw 7.6 Izmit Earthquake

Recurso electrónico / electronic resource
Registro MARC
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24502‎$a‎Extended nucleation of the 1999 Mw 7.6 Izmit Earthquake‎$c‎Michel Bouchon... [et al.]
520  ‎$a‎Laboratory and theoretical studies suggest that earthquakes are preceded by a phase of developing slip instability in which the fault slips slowly before accelerating to dynamic rupture. We report here that one of the best-recorded large earthquakes to date, the 1999 moment magnitude (Mw) 7.6 Izmit (Turkey) earthquake, was preceded by a seismic signal of long duration that originated from the hypocenter. The signal consisted of a succession of repetitive seismic bursts, accelerating with time, and increased low-frequency seismic noise. These observations show that the earthquake was preceded for 44 minutes by a phase of slow slip occurring at the base of the brittle crust. This slip accelerated slowly initially, and then rapidly accelerated in the 2 minutes preceding the earthquake
650 1‎$0‎MAPA20080600204‎$a‎Catástrofes naturales
650 1‎$0‎MAPA20080563790‎$a‎Predicciones
650 1‎$0‎MAPA20080556501‎$a‎Sismicidad
650 1‎$0‎MAPA20080556792‎$a‎Terremotos
651 1‎$0‎MAPA20080637972‎$a‎Turquía
7001 ‎$0‎MAPA20110007218‎$a‎Bouchon, Michel
7730 ‎$t‎Science‎$g‎18/03/2011; Vol. 331; p. 877-880