Link to USGS home page.
Earthquake Hazards Program

Magnitude 4.5 WYOMING

2003 August 21 07:46:53 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
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
(degrees)
Travel Time
(min:secs)
Arrival Time
UTC
Phase
Golden, Colorado 5.88 1:28.3 7:48:22.3Pn
Seattle, Washington 9.01 2:11.3 7:49:05.3Pn
Albuquerque, New Mexico 9.48 2:17.7 7:49:11.7Pn
San Francisco, California 10.98 2:38.2 7:49:32.2Pn
Los Angeles, California 11.67 2:47.7 7:49:41.7Pn
Wichita, Kansas 11.81 2:49.6 7:49:43.6Pn
Duluth, Minnesota 13.17 3:08.2 7:50:02.2Pn
St. Louis, Missouri 16.15 3:48.2 7:50:42.2Pn
Knoxville, Tennessee 21.00 4:44.9 7:51:38.9P
Brownsville, Texas 21.01 4:44.9 7:51:38.9P
Ottawa, Canada 24.65 5:22.2 7:52:16.2P
Washington, D.C. 25.51 5:30.0 7:52:24.0P
Mexico City, Mexico 26.37 5:37.8 7:52:31.8P
Philadephia, Pennsylvania 26.47 5:38.7 7:52:32.7P
New York, New York 27.04 5:43.8 7:52:37.8P
Boston, Massachusetts 28.62 5:58.0 7:52:52.0P
Anchorage, Alaska 28.80 5:59.5 7:52:53.5P
Bangor, Maine 29.59 6:06.6 7:53:00.6P
Miami, Florida 30.63 6:15.7 7:53:09.7P
San Juan, Puerto Rico 45.00 8:16.9 7:55:10.9P
Honolulu, Hawaii 45.07 8:17.5 7:55:11.5P
Bergen, Norway 63.5410:32.1 7:57:26.1P
Lima, Peru 63.6710:33.0 7:57:27.0P
London, England 67.4010:57.1 7:57:51.1P
Moscow, Russia 76.9711:54.5 7:58:48.5P
Tokyo, Japan 78.2112:01.3 7:58:55.3P
Rome, Italy 80.3412:13.0 7:59:07.0P
Beijing, China 86.2912:43.6 7:59:37.6P
Agana, Guam 91.0213:06.0 7:59:60.0P
Kathmandu, Nepal 107.1114:18.2 8:01:12.2Pdiff
Wellington, New Zealand 108.1914:23.0 8:01:17.0Pdiff
Brisbane, Australia 112.9914:44.3 8:01:38.3Pdiff
Palmer Station, Antarctica 116.8915:01.7 8:01:55.7Pdiff
Nairobi, Kenya 128.4715:53.1 8:02:47.1Pdiff


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