Theoretical P-Wave Travel Times

Saturday, February 23, 2013 at 12:36:30 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
San Juan, Puerto Rico 1.91 0:31.012:37:01.0Pn
Miami, Florida 13.43 3:06.812:39:36.8Pn
Washington, D.C. 21.96 4:46.312:41:16.3P
Philadelphia, Pennsylvania 22.44 4:51.412:41:21.4P
New York, New York 22.93 4:56.512:41:26.5P
Knoxville, Tennessee 23.18 4:58.712:41:28.7P
Boston, Massachusetts 24.12 5:07.312:41:37.3P
Bangor, Maine 26.46 5:28.512:41:58.5P
Ottawa, Canada 27.80 5:40.512:42:10.5P
St. Louis, Missouri 27.99 5:42.212:42:12.2P
Brownsville, Texas 28.21 5:44.212:42:14.2P
Mexico City, Mexico 29.38 5:54.512:42:24.5P
Lima, Peru 31.43 6:12.612:42:42.6P
Wichita, Kansas 32.07 6:18.212:42:48.2P
Duluth, Minnesota 34.62 6:40.312:43:10.3P
Albuquerque, New Mexico 37.99 7:09.012:43:39.0P
Golden, Colorado 38.47 7:13.012:43:43.0P
Phoenix, Arizona 42.01 7:42.312:44:12.3P
Los Angeles, California 47.19 8:23.412:44:53.4P
San Francisco, California 50.98 8:52.412:45:22.4P
Seattle, Washington 52.77 9:05.712:45:35.7P
London, England 62.2210:12.112:46:42.1P
Bergen, Norway 66.1210:37.612:47:07.6P
Anchorage, Alaska 70.2211:03.212:47:33.2P
Rome, Italy 71.1711:09.012:47:39.0P
Honolulu, Hawaii 83.2712:16.612:48:46.6P
Moscow, Russia 83.6612:18.612:48:48.6P
Palmer Station, Antarctica 85.8412:29.612:48:59.6P
Nairobi, Kenya 104.6113:55.212:50:25.2Pdiff
Tokyo, Japan 120.2115:04.412:51:34.4Pdiff
Beijing, China 121.9715:12.212:51:42.2Pdiff
Wellington, New Zealand 122.0615:12.712:51:42.7Pdiff
Kathmandu, Nepal 127.5715:37.112:52:07.1Pdiff
Agana, Guam 134.7716:09.112:52:39.1Pdiff
Brisbane, Australia 141.1616:37.412:53:07.4Pdiff

Travel Time Information and Calculator

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