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

Bulletin of the Seismological Society of America

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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.-Authors

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Failure of self-similarity for large (Mw > 81/4) earthquakes.
Series title:
Bulletin of the Seismological Society of America
Volume
78
Issue:
2
Year Published:
1988
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Bulletin of the Seismological Society of America
First page:
478
Last page:
488
Number of Pages:
11