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Earthquake Hazards Program

Theoretical P-Wave Travel Times

Sunday, September 05, 2004 at 10:07:07 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
Tokyo, Japan 3.64 0:55.210:08:04.2Pn
Beijing, China 17.59 4:03.910:11:12.9Pn
Agana, Guam 20.89 4:40.910:11:49.9P
Kathmandu, Nepal 44.23 8:07.710:15:16.7P
Anchorage, Alaska 53.77 9:20.910:16:29.9P
Honolulu, Hawaii 58.64 9:55.610:17:04.6P
Brisbane, Australia 62.2210:20.210:17:29.2P
Moscow, Russia 68.0110:57.810:18:06.8P
Seattle, Washington 72.9811:28.210:18:37.2P
San Francisco, California 78.1711:57.910:19:06.9P
Bergen, Norway 78.6812:00.810:19:09.8P
Wellington, New Zealand 81.9212:18.210:19:27.2P
Los Angeles, California 83.0612:24.110:19:33.1P
London, England 87.6212:46.810:19:55.8P
Golden, Colorado 87.6812:47.110:19:56.1P
Duluth, Minnesota 89.1912:54.210:20:03.2P
Rome, Italy 89.4512:55.510:20:04.5P
Albuquerque, New Mexico 89.9412:57.710:20:06.7P
Wichita, Kansas 93.4513:14.010:20:23.0P
St. Louis, Missouri 96.3913:27.310:20:36.3P
Ottawa, Canada 96.5413:28.010:20:37.0P
Nairobi, Kenya 98.9113:38.610:20:47.6Pdiff
Bangor, Maine 99.1213:39.510:20:48.5Pdiff
Boston, Massachusetts 100.7613:46.810:20:55.8Pdiff
Knoxville, Tennessee 100.9713:47.810:20:56.8Pdiff
New York, New York 101.3113:49.310:20:58.2Pdiff
Philadephia, Pennsylvania 101.6013:50.510:20:59.5Pdiff
Washington, D.C. 101.8613:51.710:21:00.7Pdiff
Brownsville, Texas 101.9513:52.110:21:01.1Pdiff
Mexico City, Mexico 105.4214:07.510:21:16.5Pdiff
Miami, Florida 111.7914:35.810:21:44.8Pdiff
San Juan, Puerto Rico 124.3015:31.310:22:40.3Pdiff
Lima, Peru 142.7916:53.410:24:02.4Pdiff
Palmer Station, Antarctica 143.2516:55.410:24:04.4Pdiff

Travel Time Information and Calculator


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