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Earthquake Hazards Program


Thursday, August 16, 2007 at 08:39:28 UTC

Theoretical P-Wave Travel Times

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
Brisbane, Australia 18.67 4:19.3 8:43:46.3P
Agana, Guam 27.21 5:45.1 8:45:12.1P
Wellington, New Zealand 34.27 6:47.4 8:46:14.4P
Tokyo, Japan 48.78 8:46.3 8:48:13.3P
Honolulu, Hawaii 52.15 9:11.8 8:48:38.8P
Beijing, China 63.3710:30.8 8:49:57.8P
Kathmandu, Nepal 80.6112:14.2 8:51:41.2P
Anchorage, Alaska 81.0812:16.7 8:51:43.7P
San Francisco, California 86.7412:45.6 8:52:12.6P
Los Angeles, California 89.1712:57.1 8:52:24.1P
Seattle, Washington 89.4012:58.2 8:52:25.2P
Phoenix, Arizona 94.1113:20.0 8:52:47.0P
Palmer Station, Antarctica 96.7513:32.0 8:52:59.0P
Albuquerque, New Mexico 98.7813:41.1 8:53:08.1Pdiff
Golden, Colorado 100.3213:47.9 8:53:14.9Pdiff
Mexico City, Mexico 103.9314:03.9 8:53:30.9Pdiff
Brownsville, Texas 105.9614:12.9 8:53:39.9Pdiff
Wichita, Kansas 106.4014:14.9 8:53:41.9Pdiff
Duluth, Minnesota 109.6814:29.4 8:53:56.4Pdiff
St. Louis, Missouri 111.9314:39.4 8:54:06.4Pdiff
Moscow, Russia 115.5114:55.3 8:54:22.3Pdiff
Knoxville, Tennessee 116.2514:58.6 8:54:25.6Pdiff
Lima, Peru 119.9215:14.9 8:54:41.9Pdiff
Ottawa, Canada 121.1215:20.2 8:54:47.2Pdiff
Miami, Florida 121.5615:22.2 8:54:49.2Pdiff
Nairobi, Kenya 121.7315:22.9 8:54:49.9Pdiff
Washington, D.C. 122.0615:24.4 8:54:51.4Pdiff
Philadephia, Pennsylvania 123.1815:29.4 8:54:56.4Pdiff
New York, New York 123.8015:32.1 8:54:59.1Pdiff
Boston, Massachusetts 125.3315:38.9 8:55:05.9Pdiff
Bergen, Norway 125.8615:41.2 8:55:08.2Pdiff
Bangor, Maine 125.9115:41.5 8:55:08.5Pdiff
London, England 135.0916:22.2 8:55:49.2Pdiff
San Juan, Puerto Rico 135.1516:22.5 8:55:49.5Pdiff
Rome, Italy 136.7116:29.4 8:55:56.4Pdiff

Travel Time Information and Calculator

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


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