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Earthquake Hazards Program

Theoretical P-Wave Travel Times

2003 December 26 01:56:52 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
Kathmandu, Nepal 23.82 5:10.0 2:02:06.0P
Moscow, Russia 30.50 6:09.9 2:03:05.9P
Nairobi, Kenya 36.45 7:01.6 2:03:57.6P
Rome, Italy 39.00 7:23.1 2:04:19.1P
Bergen, Norway 47.08 8:28.5 2:05:24.5P
Beijing, China 48.42 8:38.8 2:05:34.8P
London, England 48.46 8:39.1 2:05:35.1P
Tokyo, Japan 67.3110:51.5 2:07:47.5P
Agana, Guam 80.5612:09.1 2:09:05.1P
Anchorage, Alaska 87.2312:43.0 2:09:39.0P
Bangor, Maine 92.1213:05.9 2:10:01.9P
Ottawa, Canada 94.9413:18.8 2:10:14.8P
Boston, Massachusetts 95.0613:19.4 2:10:15.4P
New York, New York 97.7313:31.4 2:10:27.4P
Philadephia, Pennsylvania 98.8913:36.5 2:10:32.5Pdiff
Duluth, Minnesota 100.0013:41.5 2:10:37.5Pdiff
Washington, D.C. 100.6213:44.2 2:10:40.2Pdiff
Seattle, Washington 103.5513:57.3 2:10:53.3Pdiff
St. Louis, Missouri 106.5414:10.5 2:11:06.5Pdiff
Brisbane, Australia 106.6014:10.8 2:11:06.8Pdiff
Knoxville, Tennessee 106.8014:11.6 2:11:07.6Pdiff
San Juan, Puerto Rico 108.5314:19.3 2:11:15.3Pdiff
Wichita, Kansas 109.7614:24.8 2:11:20.8Pdiff
Golden, Colorado 109.8914:25.4 2:11:21.4Pdiff
Miami, Florida 112.5014:37.0 2:11:33.0Pdiff
San Francisco, California 113.5714:41.7 2:11:37.7Pdiff
Albuquerque, New Mexico 114.6914:46.7 2:11:42.7Pdiff
Los Angeles, California 117.2014:57.8 2:11:53.8Pdiff
Honolulu, Hawaii 119.0515:06.1 2:12:02.1Pdiff
Brownsville, Texas 120.6615:13.2 2:12:09.2Pdiff
Mexico City, Mexico 127.1615:42.1 2:12:38.1Pdiff
Wellington, New Zealand 127.7215:44.5 2:12:40.5Pdiff
Palmer Station, Antarctica 128.6315:48.6 2:12:44.6Pdiff
Lima, Peru 135.2116:17.8 2:13:13.8Pdiff
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