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Earthquake Hazards Program


Sunday, March 25, 2007 at 00:41:57 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 3.25 0:48.7 0:42:50.7Pn
Beijing, China 15.79 3:39.9 0:45:41.9Pn
Agana, Guam 25.09 5:21.6 0:47:23.6P
Kathmandu, Nepal 43.70 8:01.8 0:50:03.8P
Anchorage, Alaska 50.27 8:53.0 0:50:55.0P
Honolulu, Hawaii 58.40 9:52.2 0:51:54.2P
Moscow, Russia 64.4010:32.8 0:52:34.8P
Brisbane, Australia 66.5310:46.6 0:52:48.6P
Seattle, Washington 69.9111:07.8 0:53:09.8P
Bergen, Norway 74.5211:35.4 0:53:37.4P
San Francisco, California 75.6211:41.7 0:53:43.7P
Los Angeles, California 80.5812:09.2 0:54:11.2P
London, England 83.5512:24.7 0:54:26.7P
Golden, Colorado 84.5412:29.8 0:54:31.8P
Phoenix, Arizona 84.8812:31.5 0:54:33.5P
Duluth, Minnesota 85.4712:34.4 0:54:36.4P
Rome, Italy 85.8712:36.4 0:54:38.4P
Wellington, New Zealand 85.9212:36.6 0:54:38.6P
Albuquerque, New Mexico 87.0312:42.1 0:54:44.1P
Wichita, Kansas 90.1412:56.8 0:54:58.8P
Ottawa, Canada 92.4913:07.7 0:55:09.7P
St. Louis, Missouri 92.8413:09.2 0:55:11.2P
Bangor, Maine 94.9413:18.9 0:55:20.9P
Boston, Massachusetts 96.6513:26.6 0:55:28.6P
New York, New York 97.2913:29.5 0:55:31.5P
Knoxville, Tennessee 97.3413:29.7 0:55:31.7P
Philadephia, Pennsylvania 97.6113:30.9 0:55:32.9P
Washington, D.C. 97.9413:32.4 0:55:34.4P
Nairobi, Kenya 98.4013:34.4 0:55:36.4Pdiff
Brownsville, Texas 99.0913:37.5 0:55:39.5Pdiff
Mexico City, Mexico 102.9113:54.4 0:55:56.4Pdiff
Miami, Florida 108.2514:18.1 0:56:20.1Pdiff
San Juan, Puerto Rico 120.3715:11.9 0:57:13.9Pdiff
Lima, Peru 140.7816:42.6 0:58:44.6Pdiff
Palmer Station, Antarctica 147.6119:37.5 1:01:39.5PKPdf

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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