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Further study of the T phase

Ewing, Maurice and Press, Frank and Worzel, J. L. (1952) Further study of the T phase. Bulletin of the Seismological Society of America, 42 (1). pp. 37-51. ISSN 0037-1106.

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New data are presented in support of the conclusion that the T phase is propagated across oceans as compressional waves in the water. T phases from many circumpacific-belt shocks were recorded at the Honolulu seismograph station and at the Kaneohe and Point Sur SOFAR Stations, permitting the determination of oceanic velocity by simple division of epicentral distance by travel time since correction for land travel was unnecessary. The signals were much sharper and less prolonged than those previously studied. Very little scatter in the velocity was observed. Divergent views on the nature of T reported by other investigators are due to complications in path, travel time, and land correction introduced by the relatively large proportion of land (or shallow water) paths involved in the shocks which they have studied.

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Additional Information:© 1952, by the Seismological Society of America. Manuscript received for publication August 3, 1951. The research reported in this paper has been sponsored by the Geophysics Research Division of the Air Force Cambridge Research Center under Contract AF 19(122)-441 and by the Office of Naval Research under Contract N6-onr-27124. We are indebted to the commanding officer and members of the staff of the Naval Electronics Laboratory, San Diego, for their cooperation in making the SOFAR records available to us, and to the U.S. Coast and Geodetic Survey for the use of the Honolulu seismograms.
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Air Force Cambridge Research Center Geophysics Research DivisionAF 19(122)-441
Office of Naval Research (ONR)N6-onr-27124
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Record Number:CaltechAUTHORS:20140924-113408742
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Official Citation: Maurice Ewing, Frank Press, and J. L. Worzel Further study of the T phase Bulletin of the Seismological Society of America January 1952 42:37-51
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49995
Deposited By: Ruth Sustaita
Deposited On:24 Sep 2014 20:41
Last Modified:03 Oct 2019 07:19

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