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Earthquake Hazards Program

Theoretical P-Wave Travel Times

Magnitude 6.7 TAIWAN REGION
Friday, October 15, 2004 at 04:08:50 UTC

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

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
Beijing, China 16.22 3:42.2 4:12:32.2Pn
Tokyo, Japan 18.46 4:08.2 4:12:58.2P
Agana, Guam 23.56 5:01.8 4:13:51.8P
Kathmandu, Nepal 33.61 6:31.2 4:15:21.2P
Brisbane, Australia 59.41 9:52.5 4:18:42.5P
Moscow, Russia 67.3310:44.8 4:19:34.8P
Anchorage, Alaska 67.6110:46.6 4:19:36.6P
Honolulu, Hawaii 72.3111:15.3 4:20:05.3P
Wellington, New Zealand 81.3512:06.1 4:20:56.1P
Bergen, Norway 81.3612:06.2 4:20:56.2P
Nairobi, Kenya 86.7412:33.4 4:21:23.4P
Seattle, Washington 87.4212:36.7 4:21:26.7P
Rome, Italy 87.7112:38.1 4:21:28.1P
London, England 89.2412:45.3 4:21:35.3P
San Francisco, California 93.0013:02.7 4:21:52.7P
Los Angeles, California 97.9213:24.9 4:22:14.9P
Golden, Colorado 102.0213:43.2 4:22:33.2Pdiff
Duluth, Minnesota 102.3913:44.8 4:22:34.8Pdiff
Albuquerque, New Mexico 104.5413:54.4 4:22:44.4Pdiff
Wichita, Kansas 107.5414:07.7 4:22:57.7Pdiff
Ottawa, Canada 108.4214:11.6 4:23:01.6Pdiff
St. Louis, Missouri 109.9914:18.6 4:23:08.6Pdiff
Bangor, Maine 110.2414:19.6 4:23:09.6Pdiff
Boston, Massachusetts 112.2914:28.7 4:23:18.7Pdiff
New York, New York 113.2814:33.2 4:23:23.2Pdiff
Philadephia, Pennsylvania 113.7514:35.2 4:23:25.2Pdiff
Washington, D.C. 114.2814:37.6 4:23:27.6Pdiff
Knoxville, Tennessee 114.3614:37.9 4:23:27.9Pdiff
Brownsville, Texas 116.6014:47.9 4:23:37.9Pdiff
Mexico City, Mexico 120.2815:04.2 4:23:54.2Pdiff
Miami, Florida 125.3515:26.7 4:24:16.7Pdiff
San Juan, Puerto Rico 136.4116:15.8 4:25:05.8Pdiff
Palmer Station, Antarctica 136.5416:16.4 4:25:06.4Pdiff
Lima, Peru 157.6119:44.5 4:28:34.5PKPdf

Travel Time Information and Calculator


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