Theoretical P-Wave Travel Times

Wednesday, March 09, 2011 at 02:45:18 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
Tokyo, Japan 3.74 0:57.2 2:46:15.2Pn
Beijing, China 20.45 4:37.0 2:49:55.0P
Agana, Guam 25.00 5:23.3 2:50:41.3P
Anchorage, Alaska 46.45 8:26.2 2:53:44.2P
Kathmandu, Nepal 48.64 8:43.3 2:54:01.3P
Honolulu, Hawaii 53.37 9:18.8 2:54:36.8P
Seattle, Washington 65.6210:43.5 2:56:01.5P
Brisbane, Australia 66.3510:48.2 2:56:06.2P
Moscow, Russia 66.6810:50.3 2:56:08.3P
San Francisco, California 70.9611:17.0 2:56:35.0P
Bergen, Norway 75.4711:43.6 2:57:01.6P
Los Angeles, California 75.8811:46.0 2:57:04.0P
Phoenix, Arizona 80.2812:10.4 2:57:28.4P
Golden, Colorado 80.3212:10.6 2:57:28.6P
Duluth, Minnesota 81.9312:19.2 2:57:37.2P
Albuquerque, New Mexico 82.6112:22.8 2:57:40.8P
Wellington, New Zealand 84.6012:32.9 2:57:50.9P
London, England 84.7012:33.4 2:57:51.4P
Wichita, Kansas 86.0812:40.3 2:57:58.3P
Rome, Italy 88.0812:50.0 2:58:08.0P
St. Louis, Missouri 89.0612:54.6 2:58:12.6P
Ottawa, Canada 89.5612:57.0 2:58:15.0P
Bangor, Maine 92.3313:09.8 2:58:27.8P
Knoxville, Tennessee 93.6713:15.9 2:58:33.9P
Boston, Massachusetts 93.8513:16.8 2:58:34.8P
New York, New York 94.2913:18.8 2:58:36.8P
Philadelphia, Pennsylvania 94.5413:19.9 2:58:37.9P
Brownsville, Texas 94.6413:20.4 2:58:38.4P
Washington, D.C. 94.7413:20.8 2:58:38.8P
Mexico City, Mexico 98.2413:36.6 2:58:54.6P
Nairobi, Kenya 103.2613:58.9 2:59:16.9Pdiff
Miami, Florida 104.4614:04.2 2:59:22.2Pdiff
San Juan, Puerto Rico 117.1615:00.6 3:00:18.6Pdiff
Lima, Peru 135.9216:23.8 3:01:41.8Pdiff
Palmer Station, Antarctica 147.1119:40.8 3:04:58.8PKPdf

Travel Time Information and Calculator

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