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Earthquake Hazards Program


Saturday, January 13, 2007 at 04:23:20 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
Travel Time
Arrival Time
Tokyo, Japan 15.35 3:36.7 4:26:57.7Pn
Beijing, China 28.26 5:53.3 4:29:14.3P
Agana, Guam 33.77 6:41.8 4:30:02.8P
Anchorage, Alaska 34.91 6:51.6 4:30:12.6P
Honolulu, Hawaii 45.97 8:23.1 4:31:44.1P
Seattle, Washington 54.03 9:24.3 4:32:45.3P
Kathmandu, Nepal 56.47 9:41.9 4:33:02.9P
San Francisco, California 59.6510:04.3 4:33:25.3P
Los Angeles, California 64.6210:37.7 4:33:58.7P
Moscow, Russia 65.2610:41.8 4:34:02.8P
Golden, Colorado 68.7111:03.8 4:34:24.8P
Phoenix, Arizona 68.8911:04.9 4:34:25.9P
Duluth, Minnesota 70.4711:14.7 4:34:35.7P
Bergen, Norway 70.7011:16.1 4:34:37.1P
Albuquerque, New Mexico 71.0811:18.4 4:34:39.4P
Brisbane, Australia 73.4911:32.8 4:34:53.8P
Wichita, Kansas 74.4611:38.5 4:34:59.5P
St. Louis, Missouri 77.4911:55.8 4:35:16.8P
Ottawa, Canada 78.5212:01.5 4:35:22.5P
London, England 80.1212:10.2 4:35:31.2P
Bangor, Maine 81.5712:17.9 4:35:38.9P
Knoxville, Tennessee 82.1312:20.9 4:35:41.9P
Boston, Massachusetts 82.8912:24.9 4:35:45.9P
Brownsville, Texas 83.1312:26.1 4:35:47.1P
New York, New York 83.1612:26.3 4:35:47.3P
Philadephia, Pennsylvania 83.3512:27.2 4:35:48.2P
Washington, D.C. 83.4512:27.8 4:35:48.8P
Rome, Italy 85.8612:39.9 4:36:00.9P
Mexico City, Mexico 86.9312:45.1 4:36:06.1P
Wellington, New Zealand 89.1012:55.5 4:36:16.5P
Miami, Florida 92.8713:13.0 4:36:34.0P
San Juan, Puerto Rico 105.8114:10.9 4:37:31.9Pdiff
Nairobi, Kenya 109.6914:28.1 4:37:49.1Pdiff
Lima, Peru 124.9015:35.6 4:38:56.6Pdiff
Palmer Station, Antarctica 150.8319:46.3 4:43:07.3PKPdf

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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