Theoretical P-Wave Travel Times

Magnitude 4.1 ALASKA PENINSULA

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 9.21 2:10.119:09:30.1Pn
Seattle, Washington 25.23 5:21.019:12:41.0P
San Francisco, California 31.31 6:15.219:13:35.2P
Honolulu, Hawaii 33.16 6:31.419:13:51.4P
Los Angeles, California 36.34 6:58.719:14:18.7P
Golden, Colorado 39.95 7:29.119:14:49.1P
Phoenix, Arizona 40.29 7:31.919:14:51.9P
Albuquerque, New Mexico 42.27 7:48.219:15:08.2P
Duluth, Minnesota 43.05 7:54.519:15:14.5P
Tokyo, Japan 44.11 8:03.019:15:23.0P
Wichita, Kansas 45.85 8:16.919:15:36.9P
St. Louis, Missouri 49.33 8:43.819:16:03.8P
Ottawa, Canada 52.70 9:09.119:16:29.1P
Knoxville, Tennessee 54.12 9:19.619:16:39.6P
Brownsville, Texas 54.33 9:21.119:16:41.1P
Beijing, China 54.50 9:22.319:16:42.3P
Washington, D.C. 56.55 9:37.119:16:57.1P
Bangor, Maine 56.65 9:37.819:16:57.8P
Philadelphia, Pennsylvania 56.81 9:38.919:16:58.9P
New York, New York 56.88 9:39.419:16:59.4P
Boston, Massachusetts 57.25 9:42.019:17:02.0P
Agana, Guam 58.39 9:50.019:17:10.0P
Mexico City, Mexico 58.39 9:50.019:17:10.0P
Miami, Florida 64.5310:31.519:17:51.5P
Bergen, Norway 65.0810:35.119:17:55.1P
Moscow, Russia 69.0911:00.519:18:20.5P
London, England 73.3311:26.219:18:46.2P
San Juan, Puerto Rico 78.2611:54.319:19:14.3P
Kathmandu, Nepal 80.1412:04.619:19:24.6P
Rome, Italy 83.9512:24.619:19:44.6P
Brisbane, Australia 90.4812:56.119:20:16.1P
Lima, Peru 96.5413:23.819:20:43.8P
Wellington, New Zealand 97.4513:27.919:20:47.9P
Nairobi, Kenya 124.9515:30.019:22:50.0Pdiff
Palmer Station, Antarctica 141.1916:42.119:24:02.1Pdiff

Travel Time Information and Calculator

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