Theoretical P-Wave Travel Times

Saturday, January 26, 2013 at 11:32:48 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
Agana, Guam 20.10 4:30.111:06:11.1P
Brisbane, Australia 21.47 4:44.811:06:25.8P
Wellington, New Zealand 41.49 7:42.811:09:23.8P
Tokyo, Japan 42.63 7:52.111:09:33.1P
Beijing, China 55.19 9:28.411:11:09.4P
Honolulu, Hawaii 58.13 9:49.311:11:30.3P
Kathmandu, Nepal 70.6911:11.511:12:52.5P
Anchorage, Alaska 81.6212:13.711:13:54.7P
San Francisco, California 91.9513:04.111:14:45.1P
Seattle, Washington 93.0613:09.211:14:50.2P
Los Angeles, California 95.0013:18.111:14:59.1P
Phoenix, Arizona 100.1113:40.911:15:21.9Pdiff
Palmer Station, Antarctica 102.4813:51.511:15:32.5Pdiff
Albuquerque, New Mexico 104.5914:00.811:15:41.8Pdiff
Golden, Colorado 105.4214:04.511:15:45.5Pdiff
Moscow, Russia 107.4014:13.311:15:54.3Pdiff
Wichita, Kansas 111.7614:32.711:16:13.7Pdiff
Mexico City, Mexico 111.8214:32.911:16:13.9Pdiff
Nairobi, Kenya 112.6914:36.811:16:17.8Pdiff
Brownsville, Texas 113.0514:38.411:16:19.4Pdiff
Duluth, Minnesota 113.4714:40.211:16:21.2Pdiff
St. Louis, Missouri 117.0314:56.111:16:37.1Pdiff
Bergen, Norway 119.6115:07.511:16:48.5Pdiff
Knoxville, Tennessee 121.6715:16.611:16:57.6Pdiff
Ottawa, Canada 124.4715:29.111:17:10.1Pdiff
Washington, D.C. 126.6615:38.811:17:19.8Pdiff
Philadelphia, Pennsylvania 127.4915:42.511:17:23.5Pdiff
New York, New York 127.9015:44.311:17:25.3Pdiff
Rome, Italy 128.0515:45.011:17:26.0Pdiff
London, England 128.3915:46.511:17:27.5Pdiff
Miami, Florida 128.4815:46.911:17:27.9Pdiff
Bangor, Maine 128.9015:48.711:17:29.7Pdiff
Boston, Massachusetts 128.9415:48.911:17:29.9Pdiff
Lima, Peru 130.0115:53.711:17:34.7Pdiff
San Juan, Puerto Rico 142.8916:50.811:18:31.8Pdiff

Travel Time Information and Calculator

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