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Earthquake Hazards Program


Monday, July 16, 2007 at 01:13:22 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 2.20 0:34.1 1:14:01.1Pn
Beijing, China 17.28 3:57.7 1:17:24.7Pn
Agana, Guam 24.67 5:16.2 1:18:43.2P
Kathmandu, Nepal 45.24 8:12.3 1:21:39.3P
Anchorage, Alaska 49.31 8:43.9 1:22:10.9P
Honolulu, Hawaii 56.86 9:39.6 1:23:06.6P
Moscow, Russia 65.3210:36.9 1:24:03.9P
Brisbane, Australia 66.1710:42.4 1:24:09.4P
Seattle, Washington 68.7910:59.0 1:24:26.0P
San Francisco, California 74.3611:32.5 1:24:59.5P
Bergen, Norway 75.0811:36.7 1:25:03.7P
Los Angeles, California 79.2912:00.3 1:25:27.3P
Golden, Colorado 83.4512:22.3 1:25:49.3P
Phoenix, Arizona 83.6412:23.2 1:25:50.2P
London, England 84.1612:25.9 1:25:52.9P
Duluth, Minnesota 84.6312:28.3 1:25:55.3P
Wellington, New Zealand 85.2412:31.3 1:25:58.3P
Albuquerque, New Mexico 85.8612:34.4 1:26:01.4P
Rome, Italy 86.7912:38.9 1:26:05.9P
Wichita, Kansas 89.1112:50.0 1:26:17.0P
Ottawa, Canada 91.8613:02.8 1:26:29.8P
St. Louis, Missouri 91.9113:03.0 1:26:30.0P
Bangor, Maine 94.4213:14.5 1:26:41.5P
Boston, Massachusetts 96.0613:22.0 1:26:49.0P
Knoxville, Tennessee 96.4613:23.7 1:26:50.7P
New York, New York 96.6413:24.6 1:26:51.6P
Philadephia, Pennsylvania 96.9313:25.9 1:26:52.9P
Washington, D.C. 97.2213:27.2 1:26:54.2P
Brownsville, Texas 97.9113:30.3 1:26:57.3P
Nairobi, Kenya 99.9313:39.2 1:27:06.2Pdiff
Mexico City, Mexico 101.6413:46.8 1:27:13.8Pdiff
Miami, Florida 107.3214:12.0 1:27:39.0Pdiff
San Juan, Puerto Rico 119.6615:06.8 1:28:33.8Pdiff
Lima, Peru 139.4316:34.6 1:30:01.6Pdiff
Palmer Station, Antarctica 147.2519:34.9 1:33:01.9PKPdf

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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