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Earthquake Hazards Program

Theoretical P-Wave Travel Times

Thursday, September 29, 2005 at 15:50:24 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
Agana, Guam 20.12 4:30.815:54:55.8P
Brisbane, Australia 21.89 4:49.915:55:14.9P
Wellington, New Zealand 41.10 7:40.315:58:05.3P
Tokyo, Japan 42.50 7:51.715:58:16.7P
Beijing, China 55.72 9:32.915:59:57.9P
Honolulu, Hawaii 56.08 9:35.516:00:00.5P
Kathmandu, Nepal 72.0811:20.616:01:45.6P
Anchorage, Alaska 80.2112:06.916:02:31.9P
San Francisco, California 89.9812:55.716:03:20.7P
Seattle, Washington 91.2513:01.616:03:26.6P
Los Angeles, California 92.9913:09.616:03:34.6P
Albuquerque, New Mexico 102.5813:52.616:04:17.6Pdiff
Palmer Station, Antarctica 102.6313:52.916:04:17.9Pdiff
Golden, Colorado 103.4713:56.616:04:21.6Pdiff
Moscow, Russia 107.9814:16.616:04:41.6Pdiff
Mexico City, Mexico 109.7214:24.316:04:49.3Pdiff
Wichita, Kansas 109.8014:24.716:04:49.7Pdiff
Brownsville, Texas 110.9714:29.916:04:54.9Pdiff
Duluth, Minnesota 111.6814:33.016:04:58.0Pdiff
Nairobi, Kenya 114.7314:46.616:05:11.6Pdiff
St. Louis, Missouri 115.1014:48.216:05:13.2Pdiff
Bergen, Norway 119.6815:08.516:05:33.5Pdiff
Knoxville, Tennessee 119.7215:08.716:05:33.7Pdiff
Ottawa, Canada 122.7515:22.216:05:47.2Pdiff
Washington, D.C. 124.8015:31.216:05:56.2Pdiff
Philadephia, Pennsylvania 125.6615:35.116:06:00.1Pdiff
New York, New York 126.1015:37.016:06:02.0Pdiff
Miami, Florida 126.4215:38.516:06:03.5Pdiff
Boston, Massachusetts 127.2015:41.916:06:06.9Pdiff
Bangor, Maine 127.2415:42.116:06:07.1Pdiff
Lima, Peru 128.3515:47.016:06:12.0Pdiff
London, England 128.6015:48.116:06:13.1Pdiff
Rome, Italy 128.8515:49.216:06:14.2Pdiff
San Juan, Puerto Rico 140.8016:42.316:07:07.3Pdiff

Travel Time Information and Calculator


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