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Earthquake Hazards Program


Friday, September 28, 2007 at 01:35:51 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
Brisbane, Australia 16.09 3:46.2 1:39:38.2Pn
Wellington, New Zealand 20.46 4:37.7 1:40:29.7P
Agana, Guam 42.12 7:52.2 1:43:44.2P
Honolulu, Hawaii 53.13 9:17.7 1:45:09.7P
Tokyo, Japan 63.1910:28.2 1:46:20.2P
Beijing, China 78.3312:00.5 1:47:52.5P
Palmer Station, Antarctica 82.9912:25.4 1:48:17.4P
San Francisco, California 86.9412:45.2 1:48:37.2P
Los Angeles, California 88.1412:51.0 1:48:43.0P
Anchorage, Alaska 88.5112:52.7 1:48:44.7P
Seattle, Washington 91.9913:08.9 1:49:00.9P
Phoenix, Arizona 92.5313:11.4 1:49:03.4P
Kathmandu, Nepal 94.6113:20.9 1:49:12.9P
Albuquerque, New Mexico 97.3113:33.1 1:49:25.1P
Mexico City, Mexico 98.2013:37.1 1:49:29.1P
Golden, Colorado 99.9813:45.0 1:49:37.0Pdiff
Brownsville, Texas 101.7413:52.8 1:49:44.8Pdiff
Wichita, Kansas 105.2714:08.5 1:50:00.5Pdiff
Lima, Peru 106.8914:15.7 1:50:07.7Pdiff
St. Louis, Missouri 110.9114:33.5 1:50:25.5Pdiff
Duluth, Minnesota 110.9214:33.6 1:50:25.6Pdiff
Knoxville, Tennessee 114.4214:49.1 1:50:41.1Pdiff
Miami, Florida 116.7814:59.6 1:50:51.6Pdiff
Washington, D.C. 121.1815:19.1 1:51:11.1Pdiff
Ottawa, Canada 122.2415:23.8 1:51:15.8Pdiff
Philadephia, Pennsylvania 122.6715:25.7 1:51:17.7Pdiff
New York, New York 123.5615:29.7 1:51:21.7Pdiff
Boston, Massachusetts 125.7215:39.3 1:51:31.3Pdiff
Bangor, Maine 127.2015:45.8 1:51:37.8Pdiff
San Juan, Puerto Rico 128.0115:49.4 1:51:41.4Pdiff
Nairobi, Kenya 128.4315:51.3 1:51:43.3Pdiff
Moscow, Russia 130.3815:59.9 1:51:51.9Pdiff
Bergen, Norway 139.3416:39.7 1:52:31.7Pdiff
London, England 148.7519:43.1 1:55:35.1PKPdf
Rome, Italy 151.6719:47.6 1:55:39.6PKPdf

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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