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Earthquake Hazards Program

Theoretical P-Wave Travel Times

Friday, September 01, 2006 at 10:18:51 UTC

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 20.75 4:36.210:23:29.2P
Agana, Guam 22.75 4:57.510:23:50.5P
Wellington, New Zealand 38.43 7:16.210:26:09.2P
Tokyo, Japan 44.72 8:07.710:27:00.7P
Honolulu, Hawaii 53.64 9:15.910:28:08.9P
Beijing, China 58.77 9:52.410:28:45.4P
Kathmandu, Nepal 75.8311:40.410:30:33.4P
Anchorage, Alaska 79.8712:02.910:30:55.9P
San Francisco, California 87.9012:43.810:31:36.8P
Seattle, Washington 89.7612:52.510:31:45.5P
Los Angeles, California 90.6812:56.810:31:49.8P
Phoenix, Arizona 95.7313:19.910:32:12.9P
Albuquerque, New Mexico 100.3113:40.310:32:33.3Pdiff
Palmer Station, Antarctica 100.5613:41.510:32:34.5Pdiff
Golden, Colorado 101.4613:45.510:32:38.5Pdiff
Mexico City, Mexico 106.6814:08.610:33:01.6Pdiff
Wichita, Kansas 107.7014:13.210:33:06.2Pdiff
Brownsville, Texas 108.2314:15.510:33:08.5Pdiff
Duluth, Minnesota 110.1714:24.110:33:17.1Pdiff
Moscow, Russia 110.9914:27.810:33:20.8Pdiff
St. Louis, Missouri 113.1114:37.210:33:30.2Pdiff
Knoxville, Tennessee 117.6214:57.210:33:50.2Pdiff
Nairobi, Kenya 118.2414:60.010:33:53.0Pdiff
Ottawa, Canada 121.4415:14.110:34:07.1Pdiff
Bergen, Norway 121.9715:16.510:34:09.5Pdiff
Washington, D.C. 123.0215:21.210:34:14.2Pdiff
Miami, Florida 123.7715:24.510:34:17.5Pdiff
Philadephia, Pennsylvania 124.0015:25.510:34:18.5Pdiff
New York, New York 124.5115:27.810:34:20.8Pdiff
Lima, Peru 124.5215:27.810:34:20.8Pdiff
Boston, Massachusetts 125.8015:33.510:34:26.5Pdiff
Bangor, Maine 126.0715:34.710:34:27.7Pdiff
London, England 131.0715:56.910:34:49.9Pdiff
Rome, Italy 132.0616:01.310:34:54.3Pdiff
San Juan, Puerto Rico 137.8816:27.110:35:20.1Pdiff

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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