Failure of self-similarity for large (Mw > 81/4) earthquakes
Bulletin of the Seismological Society of America
By: S. H. Hartzell and 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.
| 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 |
| DOI | 10.1785/BSSA0780020478 |
| Volume | 78 |
| Issue | 2 |
| Year Published | 1988 |
| Language | English |
| Publisher | Seismological Society of America |
| Description | 11 p. |
| First page | 478 |
| Last page | 488 |
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