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Materials for the study of deep-focus earthquakes

Gutenberg, B. and Richter, C. F. (1936) Materials for the study of deep-focus earthquakes. Bulletin of the Seismological Society of America, 26 (4). pp. 341-390. ISSN 0037-1106. https://resolver.caltech.edu/CaltechAUTHORS:20140804-152752821

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Abstract

Travel times of normal earthquakes are made the basis for calculated travel times for shocks at depths down to 800 km. These are presented in tabular form, together with certain auxiliary data. Theoretical discussion is given for the critical distances at which pP and PP, sP and SP, etc., coincide, and below which these phases should not occur. These distances are not focal points (caustics). Methods are given for determining epicenter, depth, and origin time, and are applied to a selected group of shocks. The results of different methods agree very well with one another and with the calculated travel-time data. A preliminary report is given on certain characteristics of the shocks studied. The mechanism of deep-focus earthquakes is discussed briefly, and it is concluded that normal and deep-focus earthquakes are probably brought about by the same forces.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://bssa.geoscienceworld.org/content/26/4/341.full.pdf+htmlPublisherArticle
Additional Information:Copyright © 1936, by the Seismological Society of America. Manuscript received for publication August 16, 1936.
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Balch Graduate School of the Geological Sciences207
Issue or Number:4
Record Number:CaltechAUTHORS:20140804-152752821
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140804-152752821
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47935
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:04 Aug 2014 22:30
Last Modified:24 Feb 2020 17:10

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