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A special-purpose program for earthquake location with an electronic computer

Nordquist, John M. (1962) A special-purpose program for earthquake location with an electronic computer. Bulletin of the Seismological Society of America, 52 (2). pp. 431-437. ISSN 0037-1106.

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An electronic digital computer program has been developed for determining the source and origin time of a local earthquake by the method of least squares, using the times of arrival of direct and refracted P waves at stations in the Pasadena network. Output includes the geographic coordinates and depth of the source, the origin time, direct distances from the source to each station, and the difference between observed and computed arrival time of P at each station. Limitations to the applicability of the program are discussed.

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Additional Information:Copyright © 1962, by the Seismological Society of America. Manuscript received October 18, 1961. This research was supported by Contract No. AF-49 (638) 910 of the Air Force Technical Applications Center as part of the Advanced Research Projects Agency project VELA.
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)AF-49(638)910
Advanced Research Projects Agency (ARPA), project VelaUNSPECIFIED
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Caltech Division of Geological Sciences1056
Issue or Number:2
Record Number:CaltechAUTHORS:20140801-120311382
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47809
Deposited By: George Porter
Deposited On:01 Aug 2014 20:25
Last Modified:03 Oct 2019 06:57

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