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Earthquake Hazards Program

Magnitude 4.4 FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA

Saturday, July 21, 2007 at 22:11:40 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 13.23 3:08.022:14:48.0Pn
Seattle, Washington 29.30 6:02.722:17:42.7P
Honolulu, Hawaii 32.05 6:27.022:18:07.0P
San Francisco, California 34.76 6:50.622:18:30.6P
Los Angeles, California 39.75 7:32.922:19:12.9P
Tokyo, Japan 40.14 7:36.222:19:16.2P
Phoenix, Arizona 43.93 8:07.122:19:47.1P
Golden, Colorado 44.03 8:07.922:19:47.9P
Albuquerque, New Mexico 46.16 8:24.822:20:04.8P
Duluth, Minnesota 47.41 8:34.622:20:14.6P
Wichita, Kansas 50.03 8:54.722:20:34.7P
Beijing, China 51.47 9:05.622:20:45.6P
St. Louis, Missouri 53.61 9:21.522:21:01.5P
Agana, Guam 54.01 9:24.422:21:04.4P
Ottawa, Canada 57.07 9:46.422:21:26.4P
Brownsville, Texas 58.19 9:54.322:21:34.3P
Knoxville, Tennessee 58.42 9:56.022:21:36.0P
Washington, D.C. 60.9310:13.222:21:53.2P
Bangor, Maine 61.0010:13.722:21:53.7P
Philadephia, Pennsylvania 61.1910:15.022:21:55.0P
New York, New York 61.2610:15.522:21:55.5P
Boston, Massachusetts 61.6210:17.922:21:57.9P
Mexico City, Mexico 62.0010:20.522:22:00.5P
Bergen, Norway 67.4210:55.922:22:35.9P
Miami, Florida 68.7511:04.322:22:44.3P
Moscow, Russia 70.1211:12.722:22:52.7P
London, England 75.9511:47.322:23:27.3P
Kathmandu, Nepal 77.8811:58.222:23:38.2P
San Juan, Puerto Rico 82.5812:23.522:24:03.5P
Rome, Italy 86.0712:41.222:24:21.2P
Brisbane, Australia 86.5612:43.622:24:23.6P
Wellington, New Zealand 94.5113:20.722:25:00.7P
Lima, Peru 100.0813:45.722:25:25.7Pdiff
Nairobi, Kenya 124.9615:36.122:27:16.1Pdiff
Palmer Station, Antarctica 141.9516:51.522:28:31.5Pdiff

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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