Theoretical P-Wave Travel Times

Magnitude 2.5 CENTRAL ALASKA.
Wednesday, February 20, 2013 at 21:23:08 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 2.59 0:43.020:27:18.0Pn
Seattle, Washington 21.05 4:45.420:31:20.4P
San Francisco, California 29.96 6:09.820:32:44.8P
Golden, Colorado 34.49 6:49.420:33:24.4P
Duluth, Minnesota 34.53 6:49.820:33:24.8P
Los Angeles, California 34.69 6:51.220:33:26.2P
Phoenix, Arizona 37.34 7:13.820:33:48.8P
Albuquerque, New Mexico 37.93 7:18.820:33:53.8P
Wichita, Kansas 39.47 7:31.720:34:06.7P
St. Louis, Missouri 41.81 7:51.120:34:26.1P
Honolulu, Hawaii 42.79 7:59.120:34:34.1P
Ottawa, Canada 42.88 7:59.820:34:34.8P
Knoxville, Tennessee 46.32 8:27.320:35:02.3P
Bangor, Maine 46.40 8:27.920:35:02.9P
Boston, Massachusetts 47.37 8:35.520:35:10.5P
New York, New York 47.39 8:35.620:35:10.6P
Philadelphia, Pennsylvania 47.49 8:36.420:35:11.4P
Washington, D.C. 47.52 8:36.720:35:11.7P
Brownsville, Texas 49.69 8:53.320:35:28.3P
Tokyo, Japan 51.11 9:04.120:35:39.1P
Bergen, Norway 54.68 9:30.520:36:05.5P
Mexico City, Mexico 54.85 9:31.820:36:06.8P
Miami, Florida 57.22 9:48.720:36:23.7P
Beijing, China 57.60 9:51.420:36:26.4P
Moscow, Russia 60.9510:14.620:36:49.6P
London, England 62.4710:24.920:36:59.9P
Agana, Guam 68.1311:01.620:37:36.6P
San Juan, Puerto Rico 69.8411:12.320:37:47.3P
Rome, Italy 73.7211:35.620:38:10.6P
Kathmandu, Nepal 79.9712:10.920:38:45.9P
Lima, Peru 92.3213:11.920:39:46.9P
Brisbane, Australia 102.0213:55.620:40:30.6Pdiff
Wellington, New Zealand 108.6914:25.220:41:00.2Pdiff
Nairobi, Kenya 117.7815:05.520:41:40.5Pdiff
Palmer Station, Antarctica 143.8917:01.420:43:36.4Pdiff

Travel Time Information and Calculator

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