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Earthquake Hazards Program

Theoretical P-Wave Travel Times

2004 May 29 20:56:09 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 1.88 0:29.620:56:42.6Pn
Beijing, China 20.60 4:35.821:00:48.8P
Agana, Guam 20.97 4:39.721:00:52.7P
Kathmandu, Nepal 47.96 8:34.721:04:47.7P
Anchorage, Alaska 50.51 8:54.221:05:07.2P
Honolulu, Hawaii 54.63 9:24.721:05:37.7P
Brisbane, Australia 62.4410:19.221:06:32.2P
Seattle, Washington 69.3611:03.721:07:16.7P
Moscow, Russia 69.3711:03.821:07:16.8P
San Francisco, California 74.3011:33.421:07:46.4P
Bergen, Norway 78.9911:59.921:08:12.9P
Los Angeles, California 79.1512:00.821:08:13.8P
Wellington, New Zealand 81.2612:12.121:08:25.1P
Golden, Colorado 84.0912:26.821:08:39.8P
Duluth, Minnesota 86.0712:36.721:08:49.7P
Albuquerque, New Mexico 86.2112:37.421:08:50.4P
London, England 88.1212:46.621:08:59.6P
Wichita, Kansas 89.9612:55.221:09:08.2P
Rome, Italy 90.8412:59.321:09:12.3P
St. Louis, Missouri 93.0913:09.721:09:22.7P
Ottawa, Canada 93.8613:13.221:09:26.2P
Bangor, Maine 96.6713:26.021:09:39.0P
Knoxville, Tennessee 97.7413:30.821:09:43.8P
Boston, Massachusetts 98.1613:32.621:09:45.6P
Brownsville, Texas 98.1813:32.721:09:45.7P
New York, New York 98.5713:34.521:09:47.5Pdiff
Philadephia, Pennsylvania 98.8013:35.521:09:48.5Pdiff
Washington, D.C. 98.9713:36.221:09:49.2Pdiff
Mexico City, Mexico 101.5113:47.521:10:00.5Pdiff
Nairobi, Kenya 102.6913:52.721:10:05.7Pdiff
Miami, Florida 108.4614:18.321:10:31.3Pdiff
San Juan, Puerto Rico 121.3615:15.621:11:28.6Pdiff
Lima, Peru 138.7316:32.721:12:45.7Pdiff
Palmer Station, Antarctica 143.4516:53.621:13:06.6Pdiff


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