Theoretical P-Wave Travel Times

Wednesday, April 17, 2013 at 15:52:52 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
Brisbane, Australia 21.13 4:39.115:57:31.1P
Agana, Guam 21.79 4:46.315:57:38.3P
Wellington, New Zealand 39.35 7:22.516:00:14.5P
Tokyo, Japan 43.91 7:59.816:00:51.8P
Honolulu, Hawaii 54.38 9:19.816:02:11.8P
Beijing, China 57.71 9:43.616:02:35.6P
Kathmandu, Nepal 74.5811:31.616:04:23.6P
Anchorage, Alaska 79.9112:01.516:04:53.5P
San Francisco, California 88.5312:45.116:05:37.1P
Seattle, Washington 90.1912:52.816:05:44.8P
Los Angeles, California 91.3812:58.416:05:50.4P
Phoenix, Arizona 96.4513:21.516:06:13.5P
Albuquerque, New Mexico 101.0013:41.816:06:33.8Pdiff
Palmer Station, Antarctica 101.3113:43.116:06:35.1Pdiff
Golden, Colorado 102.0713:46.516:06:38.5Pdiff
Mexico City, Mexico 107.6414:11.216:07:03.2Pdiff
Wichita, Kansas 108.3514:14.416:07:06.4Pdiff
Brownsville, Texas 109.0914:17.716:07:09.7Pdiff
Moscow, Russia 109.9614:21.516:07:13.5Pdiff
Duluth, Minnesota 110.6114:24.416:07:16.4Pdiff
St. Louis, Missouri 113.7214:38.216:07:30.2Pdiff
Nairobi, Kenya 117.1214:53.316:07:45.3Pdiff
Knoxville, Tennessee 118.2614:58.416:07:50.4Pdiff
Bergen, Norway 121.1715:11.316:08:03.3Pdiff
Ottawa, Canada 121.8215:14.216:08:06.2Pdiff
Washington, D.C. 123.5615:21.916:08:13.9Pdiff
Philadelphia, Pennsylvania 124.5015:26.116:08:18.1Pdiff
Miami, Florida 124.6115:26.516:08:18.5Pdiff
New York, New York 124.9915:28.216:08:20.2Pdiff
Lima, Peru 125.7815:31.816:08:23.8Pdiff
Boston, Massachusetts 126.2215:33.716:08:25.7Pdiff
Bangor, Maine 126.4115:34.516:08:26.5Pdiff
London, England 130.2115:51.416:08:43.4Pdiff
Rome, Italy 130.9715:54.816:08:46.8Pdiff
San Juan, Puerto Rico 138.8116:29.616:09:21.6Pdiff

Travel Time Information and Calculator

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