Theoretical P-Wave Travel Times

Magnitude 4.4 CHIAPAS, MEXICO
Sunday, March 03, 2013 at 16:15:55 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
(degrees)
Travel Time
(min:secs)
Arrival Time
UTC
Phase
Mexico City, Mexico 8.07 1:57.216:17:52.2Pn
Brownsville, Texas 10.91 2:36.216:18:31.2Pn
Miami, Florida 13.68 3:14.016:19:09.0Pn
Knoxville, Tennessee 19.94 4:32.116:20:27.1P
Wichita, Kansas 21.71 4:51.216:20:46.2P
St. Louis, Missouri 21.94 4:53.616:20:48.6P
Albuquerque, New Mexico 22.96 5:04.516:20:59.5P
San Juan, Puerto Rico 23.95 5:14.416:21:09.4P
Phoenix, Arizona 25.16 5:25.416:21:20.4P
Washington, D.C. 25.38 5:27.416:21:22.4P
Golden, Colorado 26.04 5:33.316:21:28.3P
Philadelphia, Pennsylvania 27.07 5:42.616:21:37.6P
New York, New York 28.21 5:52.816:21:47.8P
Los Angeles, California 29.82 6:07.216:22:02.2P
Duluth, Minnesota 30.01 6:08.816:22:03.9P
Boston, Massachusetts 30.84 6:16.116:22:11.1P
Ottawa, Canada 31.47 6:21.716:22:16.7P
Lima, Peru 31.81 6:24.716:22:19.7P
Bangor, Maine 33.81 6:42.116:22:37.1P
San Francisco, California 34.58 6:48.816:22:43.8P
Seattle, Washington 40.21 7:36.516:23:31.5P
Anchorage, Alaska 60.6410:11.116:26:06.1P
Honolulu, Hawaii 62.7910:25.616:26:20.6P
London, England 77.7811:57.416:27:52.4P
Bergen, Norway 78.8612:03.416:27:58.4P
Palmer Station, Antarctica 86.5012:43.016:28:38.0P
Rome, Italy 88.8512:54.316:28:49.3P
Moscow, Russia 96.0513:27.416:29:22.4P
Wellington, New Zealand 103.7714:01.816:29:56.8Pdiff
Tokyo, Japan 109.0614:25.316:30:20.3Pdiff
Agana, Guam 117.1515:01.216:30:56.2Pdiff
Beijing, China 118.1115:05.516:31:00.5Pdiff
Brisbane, Australia 120.1015:14.316:31:09.3Pdiff
Nairobi, Kenya 126.6315:43.316:31:38.3Pdiff
Kathmandu, Nepal 135.7816:23.916:32:18.9Pdiff

Travel Time Information and Calculator

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