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Title: Source
and Coulomb



Authors: Borges, JF
Caldeira, B
Bezzeghoud, M
Santos, Ruben
Keywords: Source
rupture process
Haiti Earthquake
Issue Date: 2010
Publisher: Geophysical Research Abstracts, Vol. 12, EGU2010-¬14548-¬1, 2010, European Geosciences Union General Assembly 2010, Vienna, Austria, 02-¬07 May 2010
Citation: Borges José F., Bento Caldeira, Mourad Bezzeghoud, Rúben Santos, 2010. Source rupture process of the 12 January 2010 Port-¬au-¬Prince (Haiti, Mw7.0) earthquake. Geophysical Research Abstracts, Vol. 12, EGU2010-14548-1, 2010, European Geosciences Union General Assembly 2010, Vienna, Austria, 02-07 May 2010.
Abstract: In order to obtain the spatiotemporal slip distribution of a finite rupture model we have used teleseismic body wave and the Kikuchi and Kanamori's method [1]. Rupture velocity was constrained by using the directivity effect determined from waveforms recorded at regional and teleseismic distances [2]. The spatiotemporal slip estimated points to a unilateral rupture that propagates from WNW to ESE with a rupture velocity of 2.5 km/s. Finally, we compared a map of aftershocks with the Coulomb stress changes caused by the event in the region [3]. [1]- Kikuchi, M., and Kanamori, H., 1982, Inversion of complex body waves: Bull. Seismol. Soc. Am., v. 72, p. 491-506. [2] Caldeira B., Bezzeghoud M, Borges JF, 2009; DIRDOP: a directivity approach to determining the seismic rupture velocity vector. J Seismology, DOI 10.1007/s10950-009-9183-x [3] -King, G. C. P., Stein, R. S. y Lin, J, 1994, Static stress changes and the triggering of earthquakes. Bull. Seismol. Soc. Am. 84,935-953.
Type: lecture
Appears in Collections:CGE - Comunicações - Em Congressos Científicos Internacionais

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