Theoretical P-Wave Travel Times

Saturday, January 12, 2013 at 12:17:27 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
Tokyo, Japan 1.65 0:27.923:55:49.9Pn
Beijing, China 20.55 4:37.323:59:59.3P
Agana, Guam 21.74 4:50.1 0:00:12.1P
Kathmandu, Nepal 48.12 8:38.3 0:04:00.3P
Anchorage, Alaska 49.69 8:50.4 0:04:12.4P
Honolulu, Hawaii 54.32 9:24.9 0:04:46.9P
Brisbane, Australia 63.1910:26.7 0:05:48.7P
Seattle, Washington 68.6011:01.6 0:06:23.6P
Moscow, Russia 68.8711:03.3 0:06:25.2P
San Francisco, California 73.6111:31.9 0:06:53.9P
Bergen, Norway 78.3211:58.8 0:07:20.8P
Los Angeles, California 78.4811:59.7 0:07:21.7P
Wellington, New Zealand 81.8912:18.0 0:07:40.0P
Phoenix, Arizona 82.9912:23.8 0:07:45.8P
Golden, Colorado 83.3212:25.5 0:07:47.5P
Duluth, Minnesota 85.2412:35.2 0:07:57.2P
Albuquerque, New Mexico 85.4712:36.4 0:07:58.4P
London, England 87.4812:46.2 0:08:08.2P
Wichita, Kansas 89.1712:54.2 0:08:16.2P
Rome, Italy 90.3312:59.6 0:08:21.6P
St. Louis, Missouri 92.2713:08.6 0:08:30.6P
Ottawa, Canada 93.0113:12.0 0:08:34.0P
Bangor, Maine 95.8113:24.8 0:08:46.8P
Knoxville, Tennessee 96.9213:29.8 0:08:51.8P
Boston, Massachusetts 97.3113:31.5 0:08:53.5P
Brownsville, Texas 97.4613:32.2 0:08:54.2P
New York, New York 97.7213:33.3 0:08:55.3P
Philadelphia, Pennsylvania 97.9513:34.4 0:08:56.4P
Washington, D.C. 98.1213:35.1 0:08:57.1P
Mexico City, Mexico 100.8313:47.2 0:09:09.2Pdiff
Nairobi, Kenya 102.8513:56.1 0:09:18.1Pdiff
Miami, Florida 107.6514:17.4 0:09:39.4Pdiff
San Juan, Puerto Rico 120.5215:14.6 0:10:36.6Pdiff
Lima, Peru 138.1516:32.8 0:11:54.8Pdiff
Palmer Station, Antarctica 144.1616:59.5 0:12:21.5Pdiff

Travel Time Information and Calculator

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver