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Earthquake Hazards Program

Magnitude 6.0 NEVADA

Thursday, February 21, 2008 at 14:16:02 UTC

Theoretical P-Wave Travel Times

Theoretical P-wave Travel Times

Theoretical P-wave Travel Times

These maps show 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
San Francisco, California 6.78 1:39.514:17:44.5Pn
Golden, Colorado 7.42 1:48.414:17:53.4Pn
Los Angeles, California 7.54 1:49.914:17:54.9Pn
Phoenix, Arizona 7.91 1:55.114:18:00.1Pn
Seattle, Washington 8.62 2:04.714:18:09.7Pn
Albuquerque, New Mexico 8.77 2:06.914:18:11.9Pn
Wichita, Kansas 13.88 3:16.814:19:21.8Pn
Duluth, Minnesota 17.22 4:00.614:20:05.6Pn
St. Louis, Missouri 18.96 4:21.314:20:26.3P
Brownsville, Texas 20.84 4:41.814:20:46.8P
Knoxville, Tennessee 23.66 5:11.714:21:16.7P
Mexico City, Mexico 25.37 5:27.314:21:32.3P
Ottawa, Canada 28.58 5:56.114:22:01.1P
Washington, D.C. 28.85 5:58.614:22:03.6P
Anchorage, Alaska 29.30 6:02.614:22:07.6P
Philadephia, Pennsylvania 29.96 6:08.414:22:13.4P
New York, New York 30.62 6:14.214:22:19.2P
Boston, Massachusetts 32.38 6:29.714:22:34.7P
Miami, Florida 32.41 6:30.014:22:35.0P
Bangor, Maine 33.54 6:39.814:22:44.8P
Honolulu, Hawaii 41.28 7:45.314:23:50.3P
San Juan, Puerto Rico 47.13 8:32.214:24:37.2P
Lima, Peru 63.3410:29.314:26:34.3P
Bergen, Norway 67.6910:57.414:27:02.4P
London, England 71.6911:22.114:27:27.1P
Tokyo, Japan 77.5511:56.114:28:01.1P
Moscow, Russia 80.7512:13.614:28:18.6P
Rome, Italy 84.6412:33.814:28:38.8P
Beijing, China 86.9112:45.014:28:50.0P
Agana, Guam 88.9912:54.914:28:59.9P
Wellington, New Zealand 103.8514:02.214:30:07.2Pdiff
Brisbane, Australia 109.0714:25.314:30:30.3Pdiff
Kathmandu, Nepal 109.0914:25.414:30:30.4Pdiff
Palmer Station, Antarctica 115.0414:51.814:30:56.8Pdiff
Nairobi, Kenya 132.8016:10.714:32:15.7Pdiff

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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