Theoretical P-Wave Travel Times

Tuesday, January 22, 2013 at 15:49:24 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
Kathmandu, Nepal 16.40 3:46.915:13:08.9Pn
Moscow, Russia 28.68 5:52.515:15:14.5P
Beijing, China 37.28 7:07.315:16:29.3P
Rome, Italy 43.40 7:57.915:17:19.9P
Bergen, Norway 46.30 8:21.015:17:43.0P
Nairobi, Kenya 47.81 8:32.815:17:54.8P
London, England 50.11 8:50.415:18:12.4P
Tokyo, Japan 56.13 9:34.715:18:56.7P
Agana, Guam 70.8811:12.215:20:34.2P
Anchorage, Alaska 77.8111:52.515:21:14.5P
Bangor, Maine 90.6012:57.315:22:19.3P
Ottawa, Canada 92.5613:06.415:22:28.4P
Boston, Massachusetts 93.5813:11.115:22:33.1P
Duluth, Minnesota 95.5613:20.115:22:42.1P
Seattle, Washington 95.6613:20.615:22:42.6P
New York, New York 96.0913:22.515:22:44.5P
Philadelphia, Pennsylvania 97.1813:27.415:22:49.4P
Washington, D.C. 98.7913:34.615:22:56.6Pdiff
Brisbane, Australia 101.4213:46.215:23:08.2Pdiff
St. Louis, Missouri 102.9213:52.915:23:14.9Pdiff
Golden, Colorado 104.1013:58.215:23:20.2Pdiff
Knoxville, Tennessee 104.1413:58.315:23:20.3Pdiff
Wichita, Kansas 105.1814:02.915:23:24.9Pdiff
San Francisco, California 105.5414:04.515:23:26.5Pdiff
Honolulu, Hawaii 107.6814:14.015:23:36.0Pdiff
Albuquerque, New Mexico 108.8414:19.215:23:41.2Pdiff
Los Angeles, California 109.6814:22.915:23:44.9Pdiff
Phoenix, Arizona 110.5914:26.915:23:48.9Pdiff
San Juan, Puerto Rico 110.8414:28.115:23:50.1Pdiff
Miami, Florida 111.6814:31.815:23:53.8Pdiff
Brownsville, Texas 116.7814:54.415:24:16.4Pdiff
Mexico City, Mexico 123.4115:23.915:24:45.9Pdiff
Wellington, New Zealand 123.7015:25.215:24:47.2Pdiff
Palmer Station, Antarctica 138.9816:33.015:25:55.0Pdiff
Lima, Peru 140.9616:41.815:26:03.8Pdiff

Travel Time Information and Calculator

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