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Earthquake Hazards Program

Magnitude 5.2 ILLINOIS

Friday, April 18, 2008 at 09:37:00 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
(degrees)
Travel Time
(min:secs)
Arrival Time
UTC
Phase
St. Louis, Missouri 1.87 0:32.7 9:37:28.6Pn
Knoxville, Tennessee 3.35 0:53.0 9:37:49.0Pn
Wichita, Kansas 7.50 1:50.0 9:38:46.0Pn
Washington, D.C. 8.48 2:03.5 9:38:59.5Pn
Duluth, Minnesota 8.81 2:08.0 9:39:04.0Pn
Philadephia, Pennsylvania 9.96 2:23.8 9:39:19.8Pn
New York, New York 10.92 2:36.9 9:39:32.9Pn
Ottawa, Canada 11.37 2:43.0 9:39:39.0Pn
Boston, Massachusetts 13.34 3:10.0 9:40:06.0Pn
Golden, Colorado 13.51 3:12.4 9:40:08.4Pn
Miami, Florida 14.28 3:22.8 9:40:18.8Pn
Brownsville, Texas 14.98 3:32.3 9:40:28.3Pn
Albuquerque, New Mexico 15.42 3:38.2 9:40:34.2Pn
Bangor, Maine 15.58 3:40.3 9:40:36.3Pn
Phoenix, Arizona 20.21 4:35.7 9:41:31.7P
Mexico City, Mexico 21.41 4:48.7 9:41:44.7P
Los Angeles, California 24.83 5:23.1 9:42:19.1P
Seattle, Washington 26.60 5:39.1 9:42:35.1P
San Francisco, California 27.09 5:43.6 9:42:39.6P
San Juan, Puerto Rico 27.50 5:47.3 9:42:43.3P
Anchorage, Alaska 43.88 8:07.3 9:45:03.3P
Lima, Peru 51.35 9:05.3 9:46:01.3P
Bergen, Norway 58.90 9:59.9 9:46:55.9P
London, England 59.7610:05.8 9:47:01.8P
Honolulu, Hawaii 61.6610:18.8 9:47:14.8P
Rome, Italy 72.1211:25.5 9:48:21.5P
Moscow, Russia 75.3211:44.3 9:48:40.3P
Tokyo, Japan 94.0513:19.2 9:50:15.2P
Beijing, China 98.8413:40.8 9:50:36.8Pdiff
Palmer Station, Antarctica 107.4814:19.1 9:51:15.1Pdiff
Agana, Guam 108.6514:24.3 9:51:20.3Pdiff
Kathmandu, Nepal 113.8314:47.3 9:51:43.3Pdiff
Nairobi, Kenya 117.4115:03.2 9:51:59.2Pdiff
Wellington, New Zealand 118.8915:09.8 9:52:05.8Pdiff
Brisbane, Australia 128.6115:52.9 9:52:48.9Pdiff

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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