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Earthquake Hazards Program

Theoretical P-Wave Travel Times

Sunday, October 15, 2006 at 17:07:49 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
Honolulu, Hawaii 2.22 0:35.317:08:23.2Pn
San Francisco, California 34.23 6:43.717:14:31.7P
Los Angeles, California 36.34 7:01.917:14:49.9P
Seattle, Washington 39.02 7:24.517:15:12.5P
Phoenix, Arizona 41.29 7:43.317:15:31.3P
Anchorage, Alaska 41.56 7:45.617:15:33.6P
Albuquerque, New Mexico 45.96 8:20.917:16:08.9P
Golden, Colorado 47.70 8:34.517:16:22.5P
Mexico City, Mexico 53.36 9:17.317:17:05.3P
Wichita, Kansas 53.63 9:19.317:17:07.3P
Brownsville, Texas 53.93 9:21.417:17:09.4P
Agana, Guam 56.83 9:42.417:17:30.4P
Duluth, Minnesota 58.01 9:50.717:17:38.7P
Tokyo, Japan 58.02 9:50.817:17:38.8P
St. Louis, Missouri 59.21 9:59.117:17:47.1P
Knoxville, Tennessee 63.4410:27.717:18:15.7P
Wellington, New Zealand 66.5510:48.017:18:36.0P
Brisbane, Australia 68.1610:58.217:18:46.2P
Miami, Florida 69.3311:05.517:18:53.5P
Washington, D.C. 69.4611:06.317:18:54.3P
Ottawa, Canada 69.4711:06.317:18:54.3P
Philadephia, Pennsylvania 70.7211:14.017:19:02.0P
New York, New York 71.4511:18.417:19:06.4P
Boston, Massachusetts 73.3011:29.417:19:17.4P
Bangor, Maine 74.4211:36.117:19:24.1P
Beijing, China 75.7011:43.417:19:31.4P
San Juan, Puerto Rico 83.8312:27.517:20:15.5P
Lima, Peru 83.9612:28.117:20:16.1P
Bergen, Norway 98.6513:36.817:21:24.8Pdiff
Moscow, Russia 103.8213:59.817:21:47.8Pdiff
Kathmandu, Nepal 104.1214:01.117:21:49.1Pdiff
London, England 105.9014:09.017:21:57.0Pdiff
Palmer Station, Antarctica 108.9414:22.517:22:10.5Pdiff
Rome, Italy 117.6915:01.417:22:49.4Pdiff
Nairobi, Kenya 157.6619:53.617:27:41.6PKPdf

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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