Theoretical P-Wave Travel Times

Magnitude 4.2 BAJA CALIFORNIA, MEXICO
Friday, March 01, 2013 at 01:26:31 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
Los Angeles, California 3.42 0:53.422:54:00.4Pn
Phoenix, Arizona 3.98 1:01.122:54:08.1Pn
San Francisco, California 8.44 2:02.322:55:09.2Pn
Albuquerque, New Mexico 8.73 2:06.322:55:13.3Pn
Golden, Colorado 12.22 2:54.122:56:01.1Pn
Wichita, Kansas 16.69 3:53.922:57:00.9Pn
Brownsville, Texas 17.06 3:58.622:57:05.6Pn
Seattle, Washington 17.27 4:01.222:57:08.1Pn
Mexico City, Mexico 19.17 4:23.622:57:30.6P
St. Louis, Missouri 22.31 4:57.622:58:04.6P
Duluth, Minnesota 24.02 5:14.922:58:21.9P
Knoxville, Tennessee 26.04 5:33.322:58:40.3P
Miami, Florida 31.83 6:24.822:59:31.8P
Washington, D.C. 32.59 6:31.522:59:38.5P
Philadelphia, Pennsylvania 34.07 6:44.422:59:51.4P
Ottawa, Canada 34.25 6:46.022:59:53.0P
New York, New York 34.99 6:52.322:59:59.3P
Boston, Massachusetts 37.24 7:11.623:00:18.6P
Anchorage, Alaska 37.32 7:12.323:00:19.3P
Honolulu, Hawaii 38.62 7:23.223:00:30.2P
Bangor, Maine 39.06 7:26.923:00:33.9P
San Juan, Puerto Rico 46.61 8:28.123:01:35.1P
Lima, Peru 57.00 9:45.723:02:52.7P
Bergen, Norway 76.9211:52.623:04:59.6P
London, England 80.2612:11.023:05:18.0P
Tokyo, Japan 82.7012:23.923:05:30.9P
Moscow, Russia 90.5213:02.123:06:09.1P
Agana, Guam 90.8713:03.723:06:10.7P
Rome, Italy 93.1613:14.323:06:21.3P
Beijing, China 94.1613:18.923:06:25.9P
Wellington, New Zealand 96.3113:28.723:06:35.7P
Brisbane, Australia 104.5014:05.123:07:12.1Pdiff
Palmer Station, Antarctica 106.0014:11.723:07:18.7Pdiff
Kathmandu, Nepal 118.0115:05.023:08:12.0Pdiff
Nairobi, Kenya 140.6616:45.623:09:52.6Pdiff

Travel Time Information and Calculator

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