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Earthquake Hazards Program

Theoretical P-Wave Travel Times

Magnitude 4.2 ARKANSAS
Sunday, May 01, 2005 at 12:37:32 UTC

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

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
St. Louis, Missouri 2.83 0:45.312:38:16.3Pn
Knoxville, Tennessee 4.04 1:01.912:38:32.9Pn
Wichita, Kansas 6.09 1:30.012:39:01.0Pn
Washington, D.C. 10.87 2:35.612:40:06.6Pn
Duluth, Minnesota 11.02 2:37.612:40:08.6Pn
Brownsville, Texas 11.74 2:47.512:40:18.5Pn
Philadephia, Pennsylvania 12.52 2:58.212:40:29.2Pn
Golden, Colorado 12.54 2:58.412:40:29.4Pn
Miami, Florida 13.18 3:07.112:40:38.1Pn
Albuquerque, New Mexico 13.47 3:11.212:40:42.2Pn
New York, New York 13.58 3:12.612:40:43.6Pn
Ottawa, Canada 14.53 3:25.612:40:56.6Pn
Boston, Massachusetts 16.15 3:47.012:41:18.0Pn
Mexico City, Mexico 18.18 4:12.512:41:43.5Pn
Bangor, Maine 18.56 4:16.912:41:47.9P
Los Angeles, California 23.08 5:05.712:42:36.7P
San Francisco, California 25.85 5:31.712:43:02.7P
Seattle, Washington 26.60 5:38.412:43:09.4P
San Juan, Puerto Rico 27.36 5:45.212:43:16.2P
Anchorage, Alaska 44.93 8:14.812:45:45.8P
Lima, Peru 49.24 8:48.512:46:19.5P
Honolulu, Hawaii 60.1210:07.512:47:38.5P
Bergen, Norway 62.1410:21.312:47:52.3P
London, England 62.9310:26.512:47:57.5P
Rome, Italy 75.2411:43.012:49:14.0P
Moscow, Russia 78.5412:01.612:49:32.6P
Tokyo, Japan 95.0613:23.012:50:54.0P
Beijing, China 100.7613:48.412:51:19.4Pdiff
Palmer Station, Antarctica 105.1414:07.912:51:38.9Pdiff
Agana, Guam 108.6614:23.512:51:54.5Pdiff
Wellington, New Zealand 115.9214:55.812:52:26.8Pdiff
Kathmandu, Nepal 116.6714:59.112:52:30.1Pdiff
Nairobi, Kenya 120.1115:14.312:52:45.3Pdiff
Brisbane, Australia 126.4315:42.412:53:13.4Pdiff

Travel Time Information and Calculator


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