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Source parameters for small events associated with the 1986 North Palm Springs, California, earthquake determined using empirical Green functions

Bulletin of the Seismological Society of America

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Abstract

Using small events as empirical Green functions, source parameters were estimated for 25 ML 3.4 to 4.4 events associated with the 1986 North Palm Springs earthquake. The static stress drops ranged from 3 to 80 bars, for moments of 0.7 to 11 ?? 1021 dyne-cm. There was a spatial pattern to the stress drops of the aftershocks which showed increasing values along the fault plane toward the northwest compared to relatively low values near the hypocenter of the mainshock. The highest values were outside the main area of slip, and are believed to reflect a loaded area of the fault that still has an higher level of stress which was not released during the main shock. -from Authors

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Source parameters for small events associated with the 1986 North Palm Springs, California, earthquake determined using empirical Green functions
Series title:
Bulletin of the Seismological Society of America
Volume
80
Issue:
2
Year Published:
1990
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
278
Last page:
295
Number of Pages:
18