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Earthquake Hazards Program

Theoretical P-Wave Travel Times

Magnitude 4.0 WYOMING
2004 April 07 15:54:12 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
(degrees)
Travel Time
(min:secs)
Arrival Time
UTC
Phase
Golden, Colorado 5.46 1:22.015:55:34.0Pn
Albuquerque, New Mexico 8.99 2:10.415:56:22.4Pn
Seattle, Washington 9.36 2:15.515:56:27.5Pn
San Francisco, California 10.85 2:35.915:56:47.9Pn
Los Angeles, California 11.35 2:42.715:56:54.7Pn
Wichita, Kansas 11.48 2:44.515:56:56.5Pn
Duluth, Minnesota 13.21 3:08.215:57:20.2Pn
St. Louis, Missouri 15.93 3:44.815:57:56.8Pn
Brownsville, Texas 20.54 4:39.315:58:51.3P
Knoxville, Tennessee 20.77 4:41.715:58:53.7P
Ottawa, Canada 24.66 5:21.615:59:33.6P
Washington, D.C. 25.39 5:28.215:59:40.2P
Mexico City, Mexico 25.89 5:32.715:59:44.7P
Philadephia, Pennsylvania 26.38 5:37.215:59:49.2P
New York, New York 26.97 5:42.515:59:54.5P
Boston, Massachusetts 28.59 5:57.016:00:09.0P
Anchorage, Alaska 29.25 6:02.816:00:14.8P
Bangor, Maine 29.61 6:06.116:00:18.1P
Miami, Florida 30.31 6:12.216:00:24.2P
San Juan, Puerto Rico 44.72 8:14.016:02:26.0P
Honolulu, Hawaii 45.08 8:16.816:02:28.8P
Lima, Peru 63.2110:29.216:04:41.2P
Bergen, Norway 63.9010:33.716:04:45.7P
London, England 67.6910:58.216:05:10.2P
Moscow, Russia 77.3911:56.116:06:08.1P
Tokyo, Japan 78.6012:02.816:06:14.8P
Rome, Italy 80.6412:13.816:06:25.8P
Beijing, China 86.7512:45.116:06:57.1P
Agana, Guam 91.2913:06.516:07:18.5P
Kathmandu, Nepal 107.6014:19.716:08:31.7Pdiff
Wellington, New Zealand 107.9814:21.316:08:33.3Pdiff
Brisbane, Australia 112.9714:43.516:08:55.5Pdiff
Palmer Station, Antarctica 116.4014:58.716:09:10.7Pdiff
Nairobi, Kenya 128.7315:53.516:10:05.5Pdiff
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