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Earthquake Hazards Program

Theoretical P-Wave Travel Times

Monday, November 22, 2004 at 20:26:23 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
Wellington, New Zealand 8.91 2:08.820:28:33.8Pn
Brisbane, Australia 21.20 4:45.720:31:10.7P
Palmer Station, Antarctica 60.2210:08.220:36:33.2P
Agana, Guam 62.4210:23.120:36:48.1P
Honolulu, Hawaii 75.5211:44.620:38:09.6P
Tokyo, Japan 84.9112:35.220:39:00.2P
Beijing, China 96.3313:28.720:39:53.7P
Lima, Peru 99.6313:43.520:40:08.5Pdiff
Kathmandu, Nepal 102.9013:58.020:40:23.0Pdiff
Los Angeles, California 105.8914:11.220:40:36.2Pdiff
San Francisco, California 106.2214:12.720:40:37.7Pdiff
Mexico City, Mexico 107.8914:20.120:40:45.1Pdiff
Brownsville, Texas 113.4114:44.620:41:09.6Pdiff
Seattle, Washington 113.4214:44.620:41:09.6Pdiff
Anchorage, Alaska 113.4814:44.920:41:09.9Pdiff
Albuquerque, New Mexico 113.5614:45.320:41:10.3Pdiff
Nairobi, Kenya 114.1114:47.720:41:12.7Pdiff
Golden, Colorado 117.4315:02.520:41:27.5Pdiff
Wichita, Kansas 121.0615:18.620:41:43.6Pdiff
Miami, Florida 125.1515:36.720:42:01.7Pdiff
St. Louis, Missouri 126.1215:41.020:42:06.0Pdiff
Knoxville, Tennessee 127.9215:49.020:42:14.0Pdiff
Duluth, Minnesota 129.2215:54.820:42:19.8Pdiff
San Juan, Puerto Rico 129.8315:57.520:42:22.5Pdiff
Washington, D.C. 134.9516:20.220:42:45.2Pdiff
Philadephia, Pennsylvania 136.7316:28.120:42:53.1Pdiff
New York, New York 137.8816:33.220:42:58.2Pdiff
Ottawa, Canada 138.8316:37.520:43:02.5Pdiff
Boston, Massachusetts 140.5716:45.220:43:10.2Pdiff
Bangor, Maine 143.1116:56.520:43:21.5Pdiff
Moscow, Russia 146.3619:39.120:46:04.1PKPdf
Rome, Italy 159.6719:58.320:46:23.3PKPdf
Bergen, Norway 161.6720:00.520:46:25.5PKPdf
London, England 168.9920:06.820:46:31.8PKPdf

Travel Time Information and Calculator


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