Theoretical P-Wave Travel Times

Magnitude 4.0 NORTHERN ALASKA
Friday, February 01, 2013 at 21:28:19 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
Anchorage, Alaska 4.94 1:13.921:05:03.9Pn
Seattle, Washington 21.33 4:46.721:08:36.7P
San Francisco, California 30.63 6:13.921:10:03.9P
Duluth, Minnesota 33.38 6:38.021:10:28.0P
Golden, Colorado 34.16 6:44.721:10:34.7P
Los Angeles, California 35.22 6:53.921:10:43.9P
Phoenix, Arizona 37.56 7:13.821:11:03.8P
Albuquerque, New Mexico 37.83 7:16.121:11:06.1P
Wichita, Kansas 38.85 7:24.721:11:14.7P
St. Louis, Missouri 40.88 7:41.621:11:31.6P
Ottawa, Canada 41.29 7:45.021:11:35.0P
Bangor, Maine 44.66 8:12.321:12:02.3P
Honolulu, Hawaii 45.03 8:15.221:12:05.2P
Knoxville, Tennessee 45.28 8:17.221:12:07.2P
Boston, Massachusetts 45.74 8:20.821:12:10.8P
New York, New York 45.87 8:21.921:12:11.9P
Philadelphia, Pennsylvania 46.03 8:23.121:12:13.1P
Washington, D.C. 46.14 8:24.021:12:14.0P
Brownsville, Texas 49.40 8:49.321:12:39.3P
Tokyo, Japan 52.32 9:11.321:13:01.3P
Bergen, Norway 52.43 9:12.121:13:02.1P
Mexico City, Mexico 54.77 9:29.321:13:19.3P
Miami, Florida 56.24 9:39.921:13:29.9P
Beijing, China 57.96 9:52.121:13:42.1P
Moscow, Russia 59.06 9:59.821:13:49.8P
London, England 60.1610:07.321:13:57.3P
San Juan, Puerto Rico 68.5311:02.221:14:52.2P
Agana, Guam 69.8711:10.621:15:00.6P
Rome, Italy 71.4711:20.321:15:10.3P
Kathmandu, Nepal 79.5312:06.621:15:56.6P
Lima, Peru 91.8913:08.021:16:58.0P
Brisbane, Australia 104.2614:03.521:17:53.5Pdiff
Wellington, New Zealand 111.0514:33.721:18:23.7Pdiff
Nairobi, Kenya 115.9114:55.221:18:45.2Pdiff
Palmer Station, Antarctica 144.5217:02.321:20:52.3Pdiff

Travel Time Information and Calculator

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