P-wave travel time residuals from the Alaskan aftershocks of 1964

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

1

Scientific paper

Travel time residuals of P-waves from 90 Alaskan aftershocks of 1964 have been studied. The data were selected from ISC bulletins. Altogether 9889 observations from 183 stations in the distance range 3 to 97° have been analyzed by a least-squares technique used by Cleary and Hales (1966a). In this way, deviations from the J-B tables have been separated from the station effect. The same method was subsequently employed to reveal the anomalies of azimuth and epicentral distance from the station residuals. Azimuth-distance dependent anomalies, called here the regional residuals, were calculated for 7° azimuth cells in the range 269 to 140°, and for 2° distance cells in the range 3 to 93°. Regional residuals distribution show some general features. Station residuals have been considered to three approximations: after separation from J-B travel time corrections, after removing the azimuthal effect, and after removing the distance effect. Station residuals to the third approximation are in general smaller from those to the first approximation, they do not show a marked regional trend and their frequency distribution is fairly normal. No evidence of any correlation with station height was found. Complete address: S. J. Gibowicz, Geophysical Institute, Polish Academy of Sciences, Warsaw 22, ul. Pasteura 3, Poland

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

P-wave travel time residuals from the Alaskan aftershocks of 1964 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with P-wave travel time residuals from the Alaskan aftershocks of 1964, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and P-wave travel time residuals from the Alaskan aftershocks of 1964 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1517041

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.