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Earthquake Activity


Theoretical P-Wave Travel Times

Magnitude 3.6 STRAIT OF GIBRALTAR
Sunday, October 10, 2004 at 09:48:54 UTC

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver

Theoretical P-wave Travel Times

This map shows the predicted (theoretical) travel times, in minutes, of the compressional (P) wave from the earthquake location to points around the globe. The travel times are computed using the spherically-symmetric IASP91 reference earth velocity model. The heavy black lines shown are the approximate distances to the P-wave shadow zone (103 to 140 degrees).

Theoretical P-Wave Travel Times
City Distance
(degrees)
Travel Time
(min:secs)
Arrival Time
UTC
Phase
Rome, Italy 14.51 3:26.6 9:52:20.6Pn
London, England 16.52 3:53.1 9:52:47.1Pn
Bergen, Norway 25.91 5:33.7 9:54:27.7P
Moscow, Russia 35.00 6:54.0 9:55:48.0P
Bangor, Maine 49.36 8:51.0 9:57:45.0P
Boston, Massachusetts 51.59 9:07.9 9:58:01.9P
Nairobi, Kenya 52.63 9:15.6 9:58:09.6P
Ottawa, Canada 53.98 9:25.6 9:58:19.6P
New York, New York 54.16 9:26.9 9:58:20.9P
Philadephia, Pennsylvania 55.25 9:34.8 9:58:28.8P
Washington, D.C. 56.97 9:47.1 9:58:41.1P
San Juan, Puerto Rico 57.05 9:47.7 9:58:41.7P
Knoxville, Tennessee 64.0810:35.7 9:59:29.7P
Duluth, Minnesota 64.2510:36.9 9:59:30.9P
Miami, Florida 64.9010:41.1 9:59:35.1P
St. Louis, Missouri 66.5010:51.5 9:59:45.5P
Wichita, Kansas 71.8311:24.510:00:18.5P
Kathmandu, Nepal 74.0911:38.010:00:32.0P
Golden, Colorado 75.9611:48.810:00:42.8P
Brownsville, Texas 78.2312:01.610:00:55.6P
Albuquerque, New Mexico 79.5712:08.910:01:02.9P
Anchorage, Alaska 80.0012:11.210:01:05.2P
Seattle, Washington 80.7012:15.010:01:09.0P
Mexico City, Mexico 83.1312:27.710:01:21.7P
Lima, Peru 83.4712:29.510:01:23.5P
Beijing, China 87.2612:48.410:01:42.4P
San Francisco, California 87.6612:50.310:01:44.3P
Los Angeles, California 87.6912:50.510:01:44.5P
Tokyo, Japan 101.8113:54.810:02:48.8Pdiff
Palmer Station, Antarctica 112.0314:40.210:03:34.2Pdiff
Honolulu, Hawaii 118.5715:09.210:04:03.2Pdiff
Agana, Guam 123.2515:30.010:04:24.0Pdiff
Brisbane, Australia 158.9219:59.210:08:53.2PKPdf
Wellington, New Zealand 173.8520:11.010:09:05.0PKPdf

Travel Time Information and Calculator

 

First Government graphic