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Failure of self-similarity for large (Mw > 81/4) earthquakes

S.H. Hartzell·T. H. Heaton
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Abstract

Compares teleseismic P-wave records for earthquakes in the magnitude range from 6.0-9.5 with synthetics for a self-similar, omega 2 source model and conclude that the energy radiated by very large earthquakes (Mw > 81/4) is not self-similar to that radiated from smaller earthquakes (Mw < 81/4). Furthermore, in the period band from 2 sec to several tens of seconds, it is concluded that large subduction earthquakes have an average spectral decay rate of omega -1.5. This spectral decay rate is consistent with a previously noted tendency of the omega 2 model to overestimate Ms for large earthquakes.

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BibTeXRIS

S.H. Hartzell, T. H. Heaton. 1988-04-01. Failure of self-similarity for large (Mw > 81/4) earthquakes. https://doi.org/10.1785/bssa0780020478

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