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Earthquake Hazards Program

Magnitude 6.4 OAXACA, MEXICO

Tuesday, February 12, 2008 at 12:50:18 UTC

Theoretical P-Wave Travel Times

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 5.62 1:21.312:51:43.3Pn
Brownsville, Texas 9.89 2:19.012:52:41.0Pn
Miami, Florida 15.94 3:37.612:53:59.6Pn
Knoxville, Tennessee 20.97 4:33.712:54:55.7P
Wichita, Kansas 21.39 4:38.212:55:00.2P
Albuquerque, New Mexico 21.64 4:40.912:55:02.9P
St. Louis, Missouri 22.36 4:48.512:55:10.5P
Phoenix, Arizona 23.40 4:58.312:55:20.3P
Golden, Colorado 25.11 5:13.912:55:35.9P
San Juan, Puerto Rico 26.76 5:28.812:55:50.8P
Washington, D.C. 26.88 5:29.812:55:51.8P
Los Angeles, California 27.85 5:38.512:56:00.5P
Philadephia, Pennsylvania 28.61 5:45.312:56:07.3P
New York, New York 29.77 5:55.512:56:17.5P
Duluth, Minnesota 30.22 5:59.512:56:21.5P
Boston, Massachusetts 32.45 6:19.012:56:41.0P
San Francisco, California 32.71 6:21.312:56:43.3P
Ottawa, Canada 32.72 6:21.312:56:43.3P
Lima, Peru 33.03 6:24.112:56:46.1P
Bangor, Maine 35.39 6:44.412:57:06.4P
Seattle, Washington 38.89 7:14.012:57:36.0P
Anchorage, Alaska 59.48 9:50.713:00:12.7P
Honolulu, Hawaii 60.13 9:55.113:00:17.1P
London, England 79.7111:54.913:02:16.9P
Bergen, Norway 80.4211:58.713:02:20.7P
Palmer Station, Antarctica 86.8312:31.413:02:53.4P
Rome, Italy 91.0012:50.913:03:12.9P
Moscow, Russia 97.4313:20.213:03:42.2P
Wellington, New Zealand 101.4813:38.213:04:00.2Pdiff
Tokyo, Japan 107.2814:04.013:04:26.0Pdiff
Agana, Guam 114.6714:36.713:04:58.7Pdiff
Beijing, China 117.0914:47.513:05:09.5Pdiff
Brisbane, Australia 117.4414:49.113:05:11.1Pdiff
Nairobi, Kenya 129.4215:42.213:06:04.2Pdiff
Kathmandu, Nepal 136.0916:11.813:06:33.8Pdiff

Travel Time Information and Calculator

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

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