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Saturday, November 22, 2008 at 16:01:39 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 17.26 3:57.016:05:37.0Pn
Wellington, New Zealand 18.94 4:16.416:05:56.4P
Agana, Guam 44.19 8:03.216:09:43.2P
Honolulu, Hawaii 52.98 9:10.816:10:50.8P
Tokyo, Japan 65.1010:34.716:12:14.7P
Beijing, China 80.4112:05.616:13:45.6P
Palmer Station, Antarctica 81.2712:10.116:13:50.1P
San Francisco, California 86.4612:36.516:14:16.5P
Los Angeles, California 87.4812:41.516:14:21.5P
Anchorage, Alaska 89.1212:49.216:14:29.2P
Phoenix, Arizona 91.7713:01.516:14:41.5P
Seattle, Washington 91.8313:01.816:14:41.8P
Albuquerque, New Mexico 96.5413:23.316:15:03.3P
Kathmandu, Nepal 96.7613:24.316:15:04.3P
Mexico City, Mexico 96.8713:24.816:15:04.8P
Golden, Colorado 99.3513:35.916:15:15.9Pdiff
Brownsville, Texas 100.5913:41.316:15:21.3Pdiff
Wichita, Kansas 104.5013:58.716:15:38.7Pdiff
Lima, Peru 104.7913:60.016:15:40.0Pdiff
St. Louis, Missouri 110.1214:23.716:16:03.7Pdiff
Duluth, Minnesota 110.4514:25.116:16:05.1Pdiff
Knoxville, Tennessee 113.5114:38.716:16:18.7Pdiff
Miami, Florida 115.4814:47.416:16:27.4Pdiff
Washington, D.C. 120.3415:09.016:16:49.0Pdiff
Ottawa, Canada 121.6815:15.016:16:55.0Pdiff
Philadephia, Pennsylvania 121.8715:15.816:16:55.8Pdiff
New York, New York 122.8015:19.916:16:59.9Pdiff
Boston, Massachusetts 125.0315:29.816:17:09.8Pdiff
San Juan, Puerto Rico 126.3815:35.816:17:15.8Pdiff
Bangor, Maine 126.6215:36.916:17:16.9Pdiff
Nairobi, Kenya 129.6715:50.416:17:30.4Pdiff
Moscow, Russia 132.3916:02.516:17:42.5Pdiff
Bergen, Norway 140.8916:40.316:18:20.3Pdiff
London, England 150.3119:38.916:21:18.9PKPdf
Rome, Italy 153.7419:44.016:21:24.0PKPdf

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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