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Earthquake Hazards Program

Theoretical P-Wave Travel Times

Sunday, November 21, 2004 at 11:41:07 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
Travel Time
Arrival Time
San Juan, Puerto Rico 5.08 1:15.411:42:23.4Pn
Miami, Florida 19.97 4:31.411:45:39.4P
Washington, D.C. 26.77 5:38.811:46:46.9P
Philadephia, Pennsylvania 26.89 5:40.011:46:48.0P
New York, New York 27.14 5:42.211:46:50.2P
Boston, Massachusetts 27.76 5:47.811:46:55.8P
Knoxville, Tennessee 29.09 5:59.611:47:07.6P
Bangor, Maine 29.64 6:04.511:47:12.5P
Lima, Peru 31.51 6:21.011:47:29.0P
Ottawa, Canada 31.91 6:24.511:47:32.5P
St. Louis, Missouri 33.96 6:42.411:47:50.4P
Brownsville, Texas 34.89 6:50.411:47:58.4P
Mexico City, Mexico 35.88 6:58.911:48:06.9P
Wichita, Kansas 38.36 7:19.911:48:27.9P
Duluth, Minnesota 40.02 7:33.811:48:41.8P
Albuquerque, New Mexico 44.53 8:10.611:49:18.6P
Golden, Colorado 44.79 8:12.711:49:20.7P
Los Angeles, California 53.81 9:21.611:50:29.6P
San Francisco, California 57.52 9:48.311:50:56.3P
Seattle, Washington 58.88 9:57.811:51:05.8P
London, England 60.2210:07.011:51:15.0P
Bergen, Norway 65.1710:40.111:51:48.1P
Rome, Italy 68.0010:58.211:52:06.2P
Anchorage, Alaska 75.5511:43.611:52:51.6P
Moscow, Russia 82.3812:21.011:53:29.1P
Palmer Station, Antarctica 83.2312:25.511:53:33.5P
Honolulu, Hawaii 89.9512:58.311:54:06.3P
Nairobi, Kenya 98.5513:37.511:54:45.5Pdiff
Beijing, China 124.6715:33.411:56:41.4Pdiff
Tokyo, Japan 125.0515:35.111:56:43.1Pdiff
Wellington, New Zealand 125.2715:36.111:56:44.1Pdiff
Kathmandu, Nepal 126.3215:40.711:56:48.7Pdiff
Agana, Guam 140.9816:45.811:57:53.8Pdiff
Brisbane, Australia 145.7819:37.012:00:45.0PKPdf

Travel Time Information and Calculator


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