Wu, Francis T.
(1968)
Parkfield earthquake of June 28, 1966: Magnitude and source mechanism.
Bulletin of the Seismological Society of America, 58
(2).
pp. 689-709.
ISSN 0037-1106.
https://resolver.caltech.edu/CaltechAUTHORS:20140801-151448195
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Abstract
The Parkfield earthquake of June 28, 1966 (04:26:12.4 GMT) is studied using short-period and long-period teleseismic records. It is found that (1) Mb = 5.8 and Ms = 6.4 as compared to Mb = 5.4 and Ms = 5.4 for the foreshock (04:08:54), (2) both the Rayleigh and Love wave radiation patterns conform to those of a double couple at a depth of about 8.6 km, (3) the main shock can be represented by a series of shocks separated in space and time.
The near-field strong-motion data support the last conclusion. Based on strong-motion seismograms, and the surficial evidences of the dimensions of the fault, the energy is found to be 10^(21) ergs.
| Item Type: | Article |
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| Additional Information: | Copyright © 1968, by the Seismological Society of America.
Manuscript received October 25, 1967.
The author wishes to thank Professor James N. Brune for stimulating discussions.
This research was supported by the Air Force Office of Scientific Research, Office of Aerospace
Research, United States Air Force, under AFOSI% contract AF-49 (638)-1337. |
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| Funders: | | Funding Agency | Grant Number |
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| Air Force Office of Scientific Research (AFOSR) | AF-49 (638)-1337 |
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| Other Numbering System: | | Other Numbering System Name | Other Numbering System ID |
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| Caltech Division of Geological Sciences | 1493 |
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| Issue or Number: | 2 |
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| Record Number: | CaltechAUTHORS:20140801-151448195 |
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| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140801-151448195 |
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| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
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| ID Code: | 47838 |
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| Collection: | CaltechAUTHORS |
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| Deposited By: |
George Porter
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| Deposited On: | 01 Aug 2014 22:24 |
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| Last Modified: | 09 Mar 2020 13:19 |
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