Theoretical P-Wave Travel Times

Magnitude 2.8 SOUTHEASTERN ALASKA
Sunday, January 20, 2013 at 01:59:49 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 9.62 2:17.2 2:02:06.2Pn
Seattle, Washington 11.08 2:37.3 2:02:26.3Pn
San Francisco, California 19.77 4:28.8 2:04:17.8P
Los Angeles, California 24.49 5:17.8 2:05:06.8P
Golden, Colorado 25.30 5:25.1 2:05:14.1P
Phoenix, Arizona 27.30 5:43.2 2:05:32.2P
Duluth, Minnesota 27.86 5:48.2 2:05:37.2P
Albuquerque, New Mexico 28.28 5:52.0 2:05:41.0P
Wichita, Kansas 30.88 6:15.0 2:06:04.0P
St. Louis, Missouri 34.11 6:43.2 2:06:32.2P
Ottawa, Canada 37.92 7:15.8 2:07:04.8P
Honolulu, Hawaii 38.29 7:18.9 2:07:07.9P
Knoxville, Tennessee 38.89 7:23.9 2:07:12.9P
Brownsville, Texas 40.25 7:35.3 2:07:24.3P
Washington, D.C. 41.41 7:44.9 2:07:33.9P
Philadelphia, Pennsylvania 41.75 7:47.6 2:07:36.6P
New York, New York 41.90 7:48.8 2:07:37.8P
Bangor, Maine 42.16 7:51.0 2:07:40.0P
Boston, Massachusetts 42.47 7:53.5 2:07:42.5P
Mexico City, Mexico 45.07 8:14.4 2:08:03.4P
Miami, Florida 49.39 8:48.1 2:08:37.1P
Tokyo, Japan 58.93 9:57.7 2:09:46.7P
Bergen, Norway 60.1310:06.0 2:09:55.0P
San Juan, Puerto Rico 63.0110:25.4 2:10:14.4P
London, England 66.8610:50.5 2:10:39.5P
Beijing, China 67.2210:52.8 2:10:41.8P
Moscow, Russia 68.8311:02.9 2:10:51.9P
Agana, Guam 73.5211:31.3 2:11:20.3P
Rome, Italy 79.0112:02.5 2:11:51.5P
Lima, Peru 82.9312:23.4 2:12:12.4P
Kathmandu, Nepal 90.1612:58.8 2:12:47.8P
Brisbane, Australia 102.8713:56.2 2:13:45.2Pdiff
Wellington, New Zealand 105.5414:08.0 2:13:57.0Pdiff
Nairobi, Kenya 125.4215:36.3 2:15:25.3Pdiff
Palmer Station, Antarctica 133.7216:13.1 2:16:02.1Pdiff

Travel Time Information and Calculator

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