Título

Estimation of radiated energy using the EGF technique: what should be the upper limit of integration in the frequency domain?

Autor

Shri Krishna Singh

Nivel de Acceso

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Resumen o descripción

The empirical Green's function (EGF) technique is frequently used to estimate the radiated seismic energy, ER, of an earthquake. An approximation of the moment-rate spectrum, M0(f), of the target earthquake is obtained from the ratio of the spectrum of the target earthquake to the spectrum of the EGF earthquake, and the radiated seismic energy is computed by integrating f2M0 2(f) over frequency f. The choice of the upper limit of integration, fu, is critical. In this note we show that the optimum choice of fu, for the ω2-source model is given by fu/fc1∼ fc2/fc1, where fc1 and fc2 are the corner frequencies of the target and the EGF earthquakes, respectively. This result provides a useful guide in the application of the EGF technique to obtain a reliable estimate of the radiated seismic energy.

Editor

Seismological Society of America

Fecha de publicación

1 de agosto de 2007

Tipo de publicación

Artículo

Versión de la publicación

Versión publicada

Formato

pdf

Fuente

https://pubs.geoscienceworld.org/ssa/bssa/article/97/4/1346/146503

Idioma

Inglés

Relación

Bulletin of the Seismological Society of America

0037-1106

Iglesias, A. and S. K. Singh. 2007. "Estimation of Radiated Energy Using the Egf Technique: What Should Be the Upper Limit of Integration in the Frequency Domain?" Bulletin of the Seismological Society of America, 97(4), 1346-1349.

Repositorio Orígen

Repositorio de Literatura del Servicio Sismológico Nacional

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