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Earthquake Hazards Program

Theoretical P-Wave Travel Times

Monday, April 11, 2005 at 17:08:53 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
Brisbane, Australia 16.84 3:51.317:12:45.3Pn
Wellington, New Zealand 19.51 4:21.717:13:15.7P
Agana, Guam 43.42 7:55.917:16:49.9P
Honolulu, Hawaii 52.99 9:09.617:18:03.6P
Tokyo, Japan 64.3810:28.817:19:22.8P
Beijing, China 79.6412:00.117:20:54.1P
Palmer Station, Antarctica 81.9212:12.217:21:06.2P
San Francisco, California 86.5912:35.817:21:29.8P
Los Angeles, California 87.6812:41.117:21:35.1P
Anchorage, Alaska 88.8612:46.617:21:40.6P
Seattle, Washington 91.8513:00.517:21:54.5P
Kathmandu, Nepal 95.9813:19.417:22:13.4P
Albuquerque, New Mexico 96.7813:23.017:22:17.0P
Mexico City, Mexico 97.3213:25.417:22:19.4P
Golden, Colorado 99.5413:35.317:22:29.3Pdiff
Brownsville, Texas 100.9713:41.717:22:35.7Pdiff
Wichita, Kansas 104.7413:58.417:22:52.4Pdiff
Lima, Peru 105.5414:02.017:22:56.0Pdiff
St. Louis, Missouri 110.3714:23.417:23:17.4Pdiff
Duluth, Minnesota 110.5914:24.317:23:18.3Pdiff
Knoxville, Tennessee 113.8114:38.617:23:32.6Pdiff
Miami, Florida 115.9214:48.017:23:42.0Pdiff
Washington, D.C. 120.6115:08.817:24:02.8Pdiff
Ottawa, Canada 121.8515:14.317:24:08.3Pdiff
Philadephia, Pennsylvania 122.1315:15.617:24:09.6Pdiff
New York, New York 123.0415:19.617:24:13.6Pdiff
Boston, Massachusetts 125.2415:29.417:24:23.4Pdiff
Bangor, Maine 126.7915:36.317:24:30.3Pdiff
San Juan, Puerto Rico 126.9515:37.017:24:31.0Pdiff
Nairobi, Kenya 129.2615:47.217:24:41.2Pdiff
Moscow, Russia 131.6515:57.817:24:51.8Pdiff
Bergen, Norway 140.3016:36.317:25:30.2Pdiff
London, England 149.7219:36.617:28:30.6PKPdf
Rome, Italy 152.9719:41.517:28:35.5PKPdf

Travel Time Information and Calculator


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