Theoretical P-Wave Travel Times

Wednesday, April 11, 2012 at 22:55:16 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
Mexico City, Mexico 3.45 0:51.322:56:07.3Pn
Brownsville, Texas 8.87 2:05.322:57:21.3Pn
Albuquerque, New Mexico 17.00 3:53.322:59:09.3Pn
Phoenix, Arizona 17.21 3:55.922:59:11.9Pn
Wichita, Kansas 19.86 4:25.622:59:41.6P
Los Angeles, California 20.91 4:37.022:59:53.0P
Golden, Colorado 21.40 4:42.222:59:58.2P
Miami, Florida 22.06 4:49.223:00:05.2P
St. Louis, Missouri 22.91 4:58.223:00:14.2P
Knoxville, Tennessee 23.34 5:02.523:00:18.5P
San Francisco, California 25.92 5:25.923:00:42.0P
Duluth, Minnesota 29.57 5:58.523:01:14.5P
Washington, D.C. 30.20 6:04.123:01:20.1P
Philadelphia, Pennsylvania 31.99 6:19.923:01:35.9P
New York, New York 33.15 6:30.023:01:46.0P
Seattle, Washington 33.44 6:32.523:01:48.5P
San Juan, Puerto Rico 34.61 6:42.623:01:58.6P
Ottawa, Canada 35.03 6:46.223:02:02.2P
Boston, Massachusetts 35.87 6:53.423:02:09.4P
Bangor, Maine 38.61 7:16.623:02:32.6P
Lima, Peru 39.44 7:23.523:02:39.5P
Honolulu, Hawaii 51.77 9:00.823:04:16.8P
Anchorage, Alaska 54.10 9:18.023:04:34.0P
Bergen, Norway 82.7312:16.723:07:32.7P
London, England 83.3212:19.723:07:35.7P
Palmer Station, Antarctica 90.4312:54.223:08:10.2P
Rome, Italy 95.3313:16.723:08:32.7P
Wellington, New Zealand 96.5113:22.123:08:38.1P
Moscow, Russia 98.9113:32.723:08:48.7Pdiff
Tokyo, Japan 100.1513:38.323:08:54.3Pdiff
Agana, Guam 106.4114:06.023:09:22.0Pdiff
Brisbane, Australia 110.6714:25.023:09:41.0Pdiff
Beijing, China 111.5014:28.723:09:44.6Pdiff
Kathmandu, Nepal 133.5416:06.523:11:22.5Pdiff
Nairobi, Kenya 136.7816:20.823:11:36.8Pdiff

Travel Time Information and Calculator

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