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U.S. Geological Survey Crustal Studies Technical Letter Number 30

In cooperation with the Defense Advanced Research Projects Agency

Calculations of Upper-Mantle Velocity from Published Soviet Earthquake Data

By Robert G. Rodriquez


Thumbnail of and link to report PDF (34.1 MB)Abstract

The lack of information on mantle velocities and crustal structure of the U.S.S.R. has led to a preliminary examination of published Soviet earthquake bulletins in the hope of deriving useful velocity and structure information from the data they contain. Mantle velocities deduced from earthquake data on several Russian earthquakes are in excellent agreement with results of Soviet deep seismic sounding.

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Contact Information, Earthquake Science Center, Menlo Park Science Center
U.S. Geological Survey
345 Middlefield Road, MS 977
Menlo Park, California 94025

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Suggested citation:

Rodriquez, R.G., 1965, Calculations of upper-mantle velocity from published Soviet earthquake data: U.S. Geological Survey Crustal Studies Technical Letter Number 30, 30 p. (Available at




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