Theoretical P-Wave Travel Times

Sunday, September 18, 2011 at 12:40:48 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 2.45 0:38.812:41:26.8Pn
Beijing, China 26.39 5:34.912:46:22.9P
Tokyo, Japan 44.25 8:07.812:48:55.8P
Moscow, Russia 45.46 8:17.412:49:05.4P
Agana, Guam 54.48 9:26.012:50:14.0P
Nairobi, Kenya 57.01 9:44.112:50:32.1P
Rome, Italy 61.7910:17.212:51:05.2P
Bergen, Norway 62.7910:23.912:51:11.9P
London, England 67.7810:56.212:51:44.2P
Anchorage, Alaska 79.7812:06.612:52:54.6P
Brisbane, Australia 83.0412:23.912:53:11.9P
Honolulu, Hawaii 99.7913:42.412:54:30.4Pdiff
Seattle, Washington 100.0113:43.312:54:31.3Pdiff
Bangor, Maine 104.8014:04.612:54:52.6Pdiff
Wellington, New Zealand 105.4114:07.312:54:55.3Pdiff
Ottawa, Canada 105.7314:08.712:54:56.8Pdiff
Duluth, Minnesota 105.8814:09.412:54:57.4Pdiff
Boston, Massachusetts 107.6914:17.412:55:05.4Pdiff
San Francisco, California 108.8514:22.612:55:10.6Pdiff
New York, New York 109.9114:27.312:55:15.3Pdiff
Philadelphia, Pennsylvania 110.8914:31.612:55:19.6Pdiff
Golden, Colorado 111.7514:35.412:55:23.4Pdiff
Washington, D.C. 112.2914:37.812:55:25.8Pdiff
Los Angeles, California 113.6914:44.112:55:32.1Pdiff
St. Louis, Missouri 113.9414:45.212:55:33.2Pdiff
Wichita, Kansas 114.6614:48.412:55:36.4Pdiff
Albuquerque, New Mexico 116.0114:54.412:55:42.4Pdiff
Phoenix, Arizona 116.2314:55.312:55:43.3Pdiff
Knoxville, Tennessee 116.3514:55.912:55:43.9Pdiff
Miami, Florida 125.6315:37.112:56:25.1Pdiff
Brownsville, Texas 126.4215:40.612:56:28.6Pdiff
San Juan, Puerto Rico 127.7215:46.312:56:34.3Pdiff
Mexico City, Mexico 132.6216:08.112:56:56.1Pdiff
Palmer Station, Antarctica 136.5716:25.612:57:13.6Pdiff
Lima, Peru 159.1319:57.713:00:45.7PKPdf

Travel Time Information and Calculator

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