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Earthquake Hazards Program


Saturday, November 22, 2008 at 16:00:59 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
Kathmandu, Nepal 35.13 6:54.416:07:54.4P
Beijing, China 46.12 8:25.116:09:25.1P
Agana, Guam 46.82 8:30.616:09:30.6P
Tokyo, Japan 53.75 9:23.116:10:23.1P
Brisbane, Australia 54.63 9:29.516:10:29.5P
Nairobi, Kenya 64.1510:35.516:11:35.5P
Wellington, New Zealand 75.0611:42.916:12:42.9P
Moscow, Russia 78.8412:04.216:13:04.2P
Rome, Italy 91.6613:08.216:14:08.2P
Bergen, Norway 96.4313:30.116:14:30.1P
London, England 100.2213:47.016:14:47.0Pdiff
Honolulu, Hawaii 101.9013:54.416:14:54.4Pdiff
Anchorage, Alaska 102.7913:58.416:14:58.4Pdiff
Palmer Station, Antarctica 107.4314:19.016:15:19.0Pdiff
Seattle, Washington 122.8715:27.516:16:27.5Pdiff
San Francisco, California 128.1915:51.116:16:51.1Pdiff
Los Angeles, California 132.9816:12.416:17:12.4Pdiff
Duluth, Minnesota 136.1016:26.216:17:26.2Pdiff
Golden, Colorado 137.4016:32.016:17:32.0Pdiff
Phoenix, Arizona 137.6116:32.916:17:32.9Pdiff
Bangor, Maine 138.5716:37.216:17:37.2Pdiff
Ottawa, Canada 138.8416:38.416:17:38.4Pdiff
Albuquerque, New Mexico 140.0116:43.616:17:43.6Pdiff
Boston, Massachusetts 141.3816:49.616:17:49.6Pdiff
Wichita, Kansas 142.6116:55.116:17:55.1Pdiff
New York, New York 143.3716:58.516:17:58.5Pdiff
St. Louis, Missouri 144.1917:02.116:18:02.1Pdiff
Philadephia, Pennsylvania 144.2417:02.316:18:02.3Pdiff
Washington, D.C. 145.4119:38.216:20:38.2PKPbc
Knoxville, Tennessee 147.8919:42.616:20:42.6PKPdf
Brownsville, Texas 152.0619:49.116:20:49.1PKPdf
Mexico City, Mexico 155.1719:53.616:20:53.6PKPdf
Miami, Florida 158.5219:57.916:20:57.9PKPdf
San Juan, Puerto Rico 161.0320:00.816:21:00.8PKPdf
Lima, Peru 163.7120:03.516:21:03.5PKPdf

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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