Abstract

RAMIREZ GAYTAN, Alejandro  and  AGUIRRE GONZALEZ, Jorge. Modelado de la fuente sísmica del sismo de Tecomán del 21 de enero de 2003 utilizando el método de las funciones de Green empíricas. Ing. sísm [online]. 2008, n.79, pp.49-69. ISSN 0185-092X.

Using the empirical Green functions method, the records of January 21, 2003 (Mw 7.5) and November 19, 2006 (Mw 5.5) earthquakes, source models are generated with different numbers, distribution and size of Strong Motion Generation Area (SMGA) for the Tecomán earthquake. These models are tested using four regional stations and one station close to the source. The models presented in this paper correspond to those that showed the best fittings in acceleration, velocity and displacement, based on the observed and synthetic records. The model that best reproduces the observed records consists of three SMGA and their location appears to be consistent with the dislocation models found by others authors. The application of source models as developed in this study will allow in the future estimating the acceleration histories, the response spectra, Peak Ground Acceleration (PGA) and Modified Mercalli Intensities (I_MM) for Tecomán earthquake in zones where no instrumentation existed at the time of the earthquake. The present work here developed provides powerful and original elements from the seismology that allow us to generate new and useful applications to seismic engineering in our country.

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