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Earthquake Hazards Program

Theoretical P-Wave Travel Times

Tuesday, December 14, 2004 at 23:20:13 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
Miami, Florida 6.83 1:40.223:21:53.2Pn
San Juan, Puerto Rico 14.39 3:23.723:23:36.7Pn
Brownsville, Texas 16.47 3:51.123:24:04.1Pn
Mexico City, Mexico 16.87 3:56.223:24:09.2Pn
Knoxville, Tennessee 17.24 4:00.923:24:13.9Pn
Washington, D.C. 20.19 4:34.723:24:47.7P
St. Louis, Missouri 21.10 4:44.623:24:57.6P
Philadephia, Pennsylvania 21.56 4:49.623:25:02.6P
New York, New York 22.55 5:00.123:25:13.1P
Wichita, Kansas 23.37 5:08.823:25:21.8P
Boston, Massachusetts 24.84 5:22.523:25:35.5P
Ottawa, Canada 26.77 5:39.923:25:52.9P
Albuquerque, New Mexico 27.56 5:47.123:26:00.1P
Bangor, Maine 27.79 5:49.123:26:02.1P
Duluth, Minnesota 29.10 6:00.723:26:13.8P
Golden, Colorado 29.20 6:01.623:26:14.6P
Lima, Peru 31.16 6:19.023:26:32.0P
Los Angeles, California 36.08 7:01.723:27:14.7P
San Francisco, California 40.34 7:37.623:27:50.6P
Seattle, Washington 43.93 8:06.823:28:19.8P
Anchorage, Alaska 63.2510:28.723:30:41.7P
London, England 69.9211:11.323:31:24.3P
Honolulu, Hawaii 71.1911:19.123:31:32.1P
Bergen, Norway 72.0611:24.323:31:37.3P
Rome, Italy 80.3312:11.323:32:24.3P
Palmer Station, Antarctica 87.4212:47.523:33:00.5P
Moscow, Russia 89.5912:57.823:33:10.8P
Wellington, New Zealand 112.5714:40.923:34:53.9Pdiff
Tokyo, Japan 113.1714:43.523:34:56.5Pdiff
Nairobi, Kenya 116.9615:00.423:35:13.4Pdiff
Beijing, China 119.1215:10.023:35:23.0Pdiff
Agana, Guam 124.3415:33.123:35:46.1Pdiff
Brisbane, Australia 129.7115:57.023:36:10.0Pdiff
Kathmandu, Nepal 131.8316:06.423:36:19.4Pdiff

Travel Time Information and Calculator


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