Theoretical P-Wave Travel Times

Saturday, February 23, 2013 at 11:44:22 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 28.51 5:52.011:45:39.0P
Beijing, China 42.16 7:49.011:47:36.0P
Agana, Guam 48.58 8:39.811:48:26.8P
Tokyo, Japan 52.17 9:07.011:48:54.0P
Nairobi, Kenya 60.3810:05.611:49:52.6P
Brisbane, Australia 60.8210:08.611:49:55.6P
Moscow, Russia 72.1111:20.811:51:07.8P
Wellington, New Zealand 81.6212:14.411:52:01.4P
Rome, Italy 85.1012:32.211:52:19.2P
Bergen, Norway 89.7112:54.411:52:41.4P
London, England 93.4913:11.911:52:58.9P
Anchorage, Alaska 99.6413:39.611:53:26.6Pdiff
Honolulu, Hawaii 103.4513:56.511:53:43.5Pdiff
Palmer Station, Antarctica 112.4814:36.611:54:23.6Pdiff
Seattle, Washington 120.1715:10.711:54:57.7Pdiff
San Francisco, California 126.5815:39.211:55:26.2Pdiff
Duluth, Minnesota 131.3716:00.411:55:47.4Pdiff
Los Angeles, California 131.5416:01.211:55:48.2Pdiff
Bangor, Maine 132.3416:04.711:55:51.7Pdiff
Ottawa, Canada 132.9716:07.511:55:54.6Pdiff
Golden, Colorado 134.2316:13.111:56:00.1Pdiff
Boston, Massachusetts 135.2016:17.511:56:04.5Pdiff
Phoenix, Arizona 135.7416:19.811:56:06.8Pdiff
New York, New York 137.3316:26.911:56:13.9Pdiff
Albuquerque, New Mexico 137.4316:27.311:56:14.3Pdiff
Philadelphia, Pennsylvania 138.2716:31.011:56:18.0Pdiff
Wichita, Kansas 138.8016:33.411:56:20.4Pdiff
St. Louis, Missouri 139.5616:36.811:56:23.8Pdiff
Washington, D.C. 139.5616:36.811:56:23.8Pdiff
Knoxville, Tennessee 142.7916:51.111:56:38.1Pdiff
Brownsville, Texas 149.3919:41.411:59:28.4PKPdf
Miami, Florida 152.8919:46.911:59:33.9PKPdf
Mexico City, Mexico 153.8419:48.311:59:35.3PKPdf
San Juan, Puerto Rico 154.3119:49.011:59:36.0PKPdf
Lima, Peru 167.9120:04.211:59:51.2PKPdf

Travel Time Information and Calculator

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