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Earthquake Hazards Program


Sunday, September 02, 2007 at 01:05:18 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 19.72 4:17.4 1:09:49.4P
Wellington, New Zealand 30.63 5:59.4 1:11:31.4P
Agana, Guam 32.36 6:14.6 1:11:46.6P
Honolulu, Hawaii 48.61 8:27.7 1:13:59.7P
Tokyo, Japan 52.98 9:00.4 1:14:32.4P
Beijing, China 68.5810:45.9 1:16:17.9P
Anchorage, Alaska 80.6211:55.3 1:17:27.3P
San Francisco, California 83.2412:09.0 1:17:41.0P
Los Angeles, California 85.2512:19.1 1:17:51.1P
Seattle, Washington 86.8412:26.9 1:17:58.9P
Kathmandu, Nepal 86.8712:27.0 1:17:59.0P
Phoenix, Arizona 90.0512:42.0 1:18:14.0P
Palmer Station, Antarctica 93.2412:56.7 1:18:28.7P
Albuquerque, New Mexico 94.7913:03.8 1:18:35.8P
Golden, Colorado 96.7313:12.5 1:18:44.5P
Mexico City, Mexico 98.6813:21.2 1:18:53.2Pdiff
Brownsville, Texas 101.1513:32.2 1:19:04.2Pdiff
Wichita, Kansas 102.5913:38.5 1:19:10.5Pdiff
Duluth, Minnesota 106.7613:57.1 1:19:29.1Pdiff
St. Louis, Missouri 108.2014:03.5 1:19:35.5Pdiff
Knoxville, Tennessee 112.2914:21.6 1:19:53.6Pdiff
Lima, Peru 113.5214:27.1 1:19:59.1Pdiff
Miami, Florida 116.7014:41.2 1:20:13.2Pdiff
Ottawa, Canada 118.2714:48.1 1:20:20.1Pdiff
Washington, D.C. 118.4814:49.1 1:20:21.1Pdiff
Philadephia, Pennsylvania 119.7514:54.7 1:20:26.7Pdiff
Moscow, Russia 120.3414:57.3 1:20:29.3Pdiff
New York, New York 120.4814:57.9 1:20:29.9Pdiff
Boston, Massachusetts 122.2515:05.8 1:20:37.8Pdiff
Bangor, Maine 123.1815:09.9 1:20:41.9Pdiff
Nairobi, Kenya 127.4815:29.0 1:21:01.0Pdiff
Bergen, Norway 129.1815:36.6 1:21:08.6Pdiff
San Juan, Puerto Rico 129.7415:39.1 1:21:11.1Pdiff
London, England 138.5716:18.3 1:21:50.3Pdiff
Rome, Italy 141.7616:32.4 1:22:04.4Pdiff

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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