Historic Earthquakes: Travel Times

Magnitude 4.6 ALABAMA
2003 April 29 08:59:39 UTC

Theoretical P-wave Travel Times

This map shows 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
Knoxville, Tennessee 1.42 0:26.5 9:00:02.5Pn
St. Louis, Missouri 5.61 1:24.1 9:01:00.1Pn
Washington, D.C. 8.06 1:57.7 9:01:33.7Pn
Philadelphia, Pennsylvania 9.84 2:22.2 9:01:58.2Pn
Miami, Florida 9.89 2:22.7 9:01:58.7Pn
Wichita, Kansas 10.09 2:25.5 9:02:01.5Pn
New York, New York 10.99 2:37.9 9:02:13.9Pn
Ottawa, Canada 13.18 3:07.8 9:02:43.8Pn
Duluth, Minnesota 13.19 3:07.9 9:02:43.9Pn
Brownsville, Texas 13.48 3:11.9 9:02:47.9Pn
Boston, Massachusetts 13.70 3:14.9 9:02:50.9Pn
Bangor, Maine 16.42 3:51.2 9:03:27.2Pn
Golden, Colorado 16.53 3:52.6 9:03:28.6Pn
Albuquerque, New Mexico 17.36 4:03.0 9:03:39.0Pn
Mexico City, Mexico 19.35 4:26.2 9:04:02.2P
San Juan, Puerto Rico 23.52 5:11.1 9:04:47.1P
Los Angeles, California 26.99 5:42.7 9:05:18.7P
San Francisco, California 29.86 6:08.3 9:05:44.2P
Seattle, Washington 30.41 6:13.1 9:05:49.1P
Lima, Peru 47.07 8:32.5 9:08:08.5P
Anchorage, Alaska 48.20 8:41.3 9:08:17.3P
Bergen, Norway 61.0610:14.7 9:09:50.7P
London, England 61.1510:15.3 9:09:51.3P
Honolulu, Hawaii 64.0510:34.8 9:10:10.8P
Rome, Italy 73.1711:31.7 9:11:07.7P
Moscow, Russia 77.8811:58.8 9:11:34.8P
Tokyo, Japan 98.3713:38.7 9:13:14.7P
Beijing, China 103.1914:00.1 9:13:36.1Pdiff
Palmer Station, Antarctica 103.2814:00.5 9:13:36.5Pdiff
Agana, Guam 112.5114:41.5 9:14:17.5Pdiff
Nairobi, Kenya 117.0015:01.4 9:14:37.4Pdiff
Kathmandu, Nepal 117.4915:03.6 9:14:39.6Pdiff
Wellington, New Zealand 118.4215:07.7 9:14:43.7Pdiff
Brisbane, Australia 129.9715:59.0 9:15:35.0Pdiff