Theoretical P-Wave Travel Times

Magnitude 4.6 OFFSHORE CHIAPAS, MEXICO
Saturday, February 23, 2013 at 02:35:37 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 7.66 1:51.517:29:09.5Pn
Brownsville, Texas 12.21 2:53.817:30:11.8Pn
Miami, Florida 16.66 3:53.417:31:11.4Pn
Knoxville, Tennessee 22.69 5:01.517:32:19.5P
Wichita, Kansas 23.63 5:11.317:32:29.3P
Albuquerque, New Mexico 23.96 5:14.317:32:32.3P
St. Louis, Missouri 24.37 5:18.117:32:36.1P
Phoenix, Arizona 25.63 5:29.517:32:47.5P
San Juan, Puerto Rico 26.24 5:35.017:32:53.0P
Golden, Colorado 27.44 5:45.817:33:03.8P
Washington, D.C. 28.30 5:53.617:33:11.6P
Los Angeles, California 30.01 6:08.717:33:26.7P
Philadelphia, Pennsylvania 30.01 6:08.717:33:26.7P
Lima, Peru 30.73 6:15.017:33:33.0P
New York, New York 31.15 6:18.817:33:36.8P
Duluth, Minnesota 32.33 6:29.117:33:47.1P
Boston, Massachusetts 33.79 6:41.917:33:59.9P
Ottawa, Canada 34.32 6:46.417:34:04.4P
San Francisco, California 34.90 6:51.517:34:09.5P
Bangor, Maine 36.76 7:07.317:34:25.3P
Seattle, Washington 41.21 7:44.617:35:02.6P
Honolulu, Hawaii 61.6110:17.517:37:35.5P
Anchorage, Alaska 61.8010:18.817:37:36.8P
London, England 80.7812:13.617:39:31.6P
Bergen, Norway 81.8212:19.117:39:37.1P
Palmer Station, Antarctica 84.5612:33.317:39:51.3P
Rome, Italy 91.8313:08.017:40:26.0P
Moscow, Russia 98.9613:40.317:40:58.3Pdiff
Wellington, New Zealand 100.8313:48.617:41:06.6Pdiff
Tokyo, Japan 109.4714:27.017:41:45.0Pdiff
Agana, Guam 116.3614:57.617:42:15.6Pdiff
Brisbane, Australia 117.4515:02.417:42:20.4Pdiff
Beijing, China 119.4115:11.117:42:29.1Pdiff
Nairobi, Kenya 128.9215:53.317:43:11.3Pdiff
Kathmandu, Nepal 138.2016:34.517:43:52.5Pdiff

Travel Time Information and Calculator

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