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Earthquake Hazards Program


Monday, October 15, 2007 at 12:29:39 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
Wellington, New Zealand 6.37 1:32.212:31:09.2Pn
Brisbane, Australia 20.72 4:38.412:34:15.4P
Palmer Station, Antarctica 61.3510:13.512:39:50.5P
Agana, Guam 61.4610:14.312:39:51.3P
Honolulu, Hawaii 72.9411:27.212:41:04.2P
Tokyo, Japan 83.8512:27.312:42:04.3P
Beijing, China 95.9213:24.412:43:01.4P
Lima, Peru 98.8713:37.612:43:14.6Pdiff
Los Angeles, California 103.3213:57.412:43:34.4Pdiff
San Francisco, California 103.6213:58.712:43:35.7Pdiff
Kathmandu, Nepal 103.7513:59.312:43:36.3Pdiff
Mexico City, Mexico 105.7414:08.112:43:45.1Pdiff
Phoenix, Arizona 106.6114:11.912:43:48.9Pdiff
Seattle, Washington 110.8014:30.512:44:07.5Pdiff
Albuquerque, New Mexico 111.0614:31.712:44:08.7Pdiff
Anchorage, Alaska 111.0714:31.812:44:08.8Pdiff
Brownsville, Texas 111.1614:32.112:44:09.1Pdiff
Golden, Colorado 114.8914:48.712:44:25.7Pdiff
Nairobi, Kenya 116.6614:56.512:44:33.5Pdiff
Wichita, Kansas 118.6115:05.212:44:42.2Pdiff
Miami, Florida 123.2115:25.612:45:02.6Pdiff
St. Louis, Missouri 123.7115:27.912:45:04.9Pdiff
Knoxville, Tennessee 125.6315:36.412:45:13.4Pdiff
Duluth, Minnesota 126.6715:41.012:45:18.0Pdiff
San Juan, Puerto Rico 128.5015:49.112:45:26.1Pdiff
Washington, D.C. 132.6816:07.712:45:44.7Pdiff
Philadephia, Pennsylvania 134.4616:15.612:45:52.6Pdiff
New York, New York 135.6016:20.612:45:57.6Pdiff
Ottawa, Canada 136.4116:24.212:46:01.2Pdiff
Boston, Massachusetts 138.2716:32.512:46:09.5Pdiff
Bangor, Maine 140.7616:43.512:46:20.5Pdiff
Moscow, Russia 146.7319:37.212:49:14.2PKPdf
Bergen, Norway 161.0119:57.312:49:34.3PKPdf
Rome, Italy 161.5719:57.912:49:34.9PKPdf
London, England 169.3020:04.412:49:41.4PKPdf

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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