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Earthquake Hazards Program


Sunday, November 25, 2007 at 16:02:20 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
Agana, Guam 33.95 6:40.516:08:57.5P
Brisbane, Australia 37.87 7:14.016:09:31.0P
Beijing, China 48.00 8:36.016:10:53.0P
Kathmandu, Nepal 48.00 8:36.016:10:53.0P
Tokyo, Japan 48.14 8:37.116:10:54.1P
Wellington, New Zealand 59.5310:00.416:12:17.4P
Nairobi, Kenya 81.4612:14.316:14:31.3P
Honolulu, Hawaii 87.2412:43.516:15:00.5P
Moscow, Russia 91.5913:03.916:15:20.9P
Anchorage, Alaska 98.0313:33.216:15:50.2P
Palmer Station, Antarctica 104.1014:00.116:16:17.1Pdiff
Rome, Italy 107.3214:14.416:16:31.4Pdiff
Bergen, Norway 108.4814:19.616:16:36.6Pdiff
London, England 114.0614:44.316:17:01.3Pdiff
Seattle, Washington 115.6214:51.316:17:08.3Pdiff
San Francisco, California 118.0315:02.016:17:19.0Pdiff
Los Angeles, California 122.1315:20.216:17:37.2Pdiff
Phoenix, Arizona 127.2615:42.916:17:59.9Pdiff
Golden, Colorado 130.0915:55.516:18:12.5Pdiff
Albuquerque, New Mexico 130.9815:59.416:18:16.4Pdiff
Duluth, Minnesota 133.6416:11.316:18:28.3Pdiff
Wichita, Kansas 136.4016:23.516:18:40.5Pdiff
St. Louis, Missouri 140.2816:40.716:18:57.7Pdiff
Ottawa, Canada 141.0716:44.216:19:01.2Pdiff
Brownsville, Texas 141.6716:46.916:19:03.9Pdiff
Mexico City, Mexico 141.9916:48.316:19:05.3Pdiff
Bangor, Maine 143.1116:53.316:19:10.3Pdiff
Knoxville, Tennessee 145.0819:33.016:21:50.0PKPbc
Boston, Massachusetts 145.0919:33.016:21:50.0PKPbc
New York, New York 145.8919:35.116:21:52.1PKPdf
Philadephia, Pennsylvania 146.2419:35.716:21:52.7PKPdf
Washington, D.C. 146.5319:36.216:21:53.2PKPdf
Lima, Peru 154.5819:48.616:22:05.6PKPdf
Miami, Florida 155.2219:49.516:22:06.5PKPdf
San Juan, Puerto Rico 168.9720:03.516:22:20.5PKPdf

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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