Abstract

Abstract An iterative technique was used to locate some 400 earthquakes, estimate corrections to the Jeffreys-Bullen P travel times and estimate azimuthally dependent station adjustments (station corrections). An oversimplified model for the upper 700 km of the mantle was adopted in order to provide a standard for the investigation of regional variations in travel times. In the estimation procedure only data for epicentral distances in the range 20° to 105° were used, and the data were truncated to remove gross errors. The new P travel times are generally 2 to 3 sec less than those given in the Jeffreys-Bullen Tables.

Keywords

GeodesyTravel timeGeologyRange (aeronautics)EstimationSeismologyMathematicsEngineeringAerospace engineeringTransport engineering

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Publication Info

Year
1968
Type
article
Volume
58
Issue
4
Pages
1273-1291
Citations
107
Access
Closed

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Eugene Herrin, William T. Tucker, James Taggart et al. (1968). Estimation of surface focus<i>P</i>travel times. Bulletin of the Seismological Society of America , 58 (4) , 1273-1291. https://doi.org/10.1785/bssa0580041273

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DOI
10.1785/bssa0580041273