Theoretical P-Wave Travel Times

Monday, September 05, 2011 at 17:55:13 UTC

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
Kathmandu, Nepal 27.41 5:35.218:00:48.2P
Beijing, China 40.39 7:27.018:02:40.0P
Agana, Guam 47.34 8:22.518:03:35.5P
Tokyo, Japan 50.46 8:46.418:03:59.4P
Brisbane, Australia 60.9710:01.518:05:14.5P
Nairobi, Kenya 61.2910:03.718:05:16.7P
Moscow, Russia 71.2011:07.018:06:20.0P
Wellington, New Zealand 82.0512:08.018:07:21.0P
Rome, Italy 84.6812:21.518:07:34.5P
Bergen, Norway 88.7712:41.218:07:54.2P
London, England 92.7812:59.918:08:12.9P
Anchorage, Alaska 97.8613:22.918:08:35.9P
Honolulu, Hawaii 102.0813:41.618:08:54.6Pdiff
Palmer Station, Antarctica 114.1514:35.218:09:48.2Pdiff
Seattle, Washington 118.3914:54.018:10:07.0Pdiff
San Francisco, California 124.8315:22.618:10:35.6Pdiff
Duluth, Minnesota 129.6915:44.118:10:57.1Pdiff
Los Angeles, California 129.8015:44.618:10:57.6Pdiff
Bangor, Maine 131.0015:50.018:11:03.0Pdiff
Ottawa, Canada 131.5115:52.218:11:05.2Pdiff
Golden, Colorado 132.4515:56.418:11:09.4Pdiff
Boston, Massachusetts 133.8416:02.618:11:15.6Pdiff
Phoenix, Arizona 133.9816:03.218:11:16.2Pdiff
Albuquerque, New Mexico 135.6516:10.618:11:23.6Pdiff
New York, New York 135.9216:11.818:11:24.8Pdiff
Philadelphia, Pennsylvania 136.8316:15.918:11:28.9Pdiff
Wichita, Kansas 137.0516:16.818:11:29.8Pdiff
St. Louis, Missouri 137.8816:20.518:11:33.5Pdiff
Washington, D.C. 138.1016:21.518:11:34.5Pdiff
Knoxville, Tennessee 141.1816:35.118:11:48.1Pdiff
Brownsville, Texas 147.6219:29.118:14:42.1PKPdf
Miami, Florida 151.3819:35.318:14:48.3PKPdf
Mexico City, Mexico 152.0819:36.418:14:49.4PKPdf
San Juan, Puerto Rico 153.5719:38.618:14:51.6PKPdf
Lima, Peru 169.6919:56.118:15:09.1PKPdf

Travel Time Information and Calculator

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver