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Earthquake Hazards Program

Magnitude 3.0 SOUTHERN ALASKA

Friday, April 24, 2009 at 05:47:59 UTC

Theoretical P-Wave Travel Times

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 0.91 0:18.1 5:47:18.1Pn
Seattle, Washington 21.55 4:42.6 5:51:42.6P
San Francisco, California 29.85 5:59.4 5:52:59.4P
Los Angeles, California 34.72 6:41.9 5:53:41.9P
Golden, Colorado 35.56 6:49.2 5:53:49.2P
Duluth, Minnesota 36.50 6:57.2 5:53:57.2P
Phoenix, Arizona 37.74 7:07.7 5:54:07.7P
Albuquerque, New Mexico 38.72 7:15.9 5:54:15.9P
Honolulu, Hawaii 40.23 7:28.4 5:54:28.4P
Wichita, Kansas 40.84 7:33.5 5:54:33.5P
St. Louis, Missouri 43.52 7:55.2 5:54:55.2P
Ottawa, Canada 45.27 8:09.2 5:55:09.2P
Knoxville, Tennessee 48.13 8:31.5 5:55:31.5P
Bangor, Maine 48.92 8:37.6 5:55:37.6P
Tokyo, Japan 49.27 8:40.3 5:55:40.3P
New York, New York 49.69 8:43.4 5:55:43.4P
Washington, D.C. 49.69 8:43.4 5:55:43.4P
Philadelphia, Pennsylvania 49.74 8:43.8 5:55:43.8P
Boston, Massachusetts 49.78 8:44.1 5:55:44.1P
Brownsville, Texas 50.64 8:50.6 5:55:50.6P
Mexico City, Mexico 55.54 9:26.6 5:56:26.6P
Beijing, China 56.75 9:35.3 5:56:35.3P
Bergen, Norway 57.33 9:39.3 5:56:39.3P
Miami, Florida 58.93 9:50.5 5:56:50.5P
Moscow, Russia 63.0110:18.2 5:57:18.2P
London, England 65.2410:32.8 5:57:32.8P
Agana, Guam 65.6710:35.6 5:57:35.6P
San Juan, Puerto Rico 71.8911:14.2 5:58:14.2P
Rome, Italy 76.3411:40.1 5:58:40.1P
Kathmandu, Nepal 80.0512:00.6 5:59:00.6P
Lima, Peru 93.3313:05.7 6:00:05.7P
Brisbane, Australia 99.1113:31.7 6:00:31.7Pdiff
Wellington, New Zealand 105.8314:01.5 6:01:01.5Pdiff
Nairobi, Kenya 119.7315:03.3 6:02:03.2Pdiff
Palmer Station, Antarctica 143.4116:48.4 6:03:48.4Pdiff

Travel Time Information and Calculator

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


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