Theoretical P-Wave Travel Times

Magnitude 4.8 TONGA
Friday, January 25, 2013 at 05:00:55 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
(degrees)
Travel Time
(min:secs)
Arrival Time
UTC
Phase
Wellington, New Zealand 26.55 5:28.3 7:34:58.3P
Brisbane, Australia 32.48 6:20.6 7:35:50.6P
Honolulu, Hawaii 40.75 7:30.7 7:37:00.7P
Agana, Guam 50.55 8:47.9 7:38:17.9P
Tokyo, Japan 67.9410:47.9 7:40:17.8P
San Francisco, California 72.4711:15.5 7:40:45.5P
Los Angeles, California 73.0211:18.8 7:40:48.8P
Phoenix, Arizona 77.0711:42.0 7:41:12.0P
Seattle, Washington 78.8511:51.8 7:41:21.8P
Anchorage, Alaska 79.7911:57.0 7:41:27.0P
Mexico City, Mexico 81.6612:06.9 7:41:36.9P
Albuquerque, New Mexico 81.8112:07.7 7:41:37.7P
Palmer Station, Antarctica 82.1312:09.4 7:41:39.4P
Golden, Colorado 84.9012:23.5 7:41:53.5P
Brownsville, Texas 85.3812:25.9 7:41:55.9P
Beijing, China 85.6312:27.2 7:41:57.2P
Wichita, Kansas 89.7512:46.8 7:42:16.8P
Lima, Peru 93.0613:02.1 7:42:32.1P
St. Louis, Missouri 95.3213:12.4 7:42:42.4P
Duluth, Minnesota 96.3213:17.0 7:42:47.0P
Knoxville, Tennessee 98.5013:26.7 7:42:56.7Pdiff
Miami, Florida 100.2713:34.5 7:43:04.5Pdiff
Washington, D.C. 105.4313:57.4 7:43:27.4Pdiff
Kathmandu, Nepal 106.8314:03.6 7:43:33.6Pdiff
Philadelphia, Pennsylvania 107.0214:04.5 7:43:34.5Pdiff
Ottawa, Canada 107.2514:05.5 7:43:35.5Pdiff
New York, New York 107.9914:08.8 7:43:38.8Pdiff
Boston, Massachusetts 110.3214:19.1 7:43:49.1Pdiff
San Juan, Puerto Rico 111.5214:24.5 7:43:54.5Pdiff
Bangor, Maine 112.1214:27.1 7:43:57.1Pdiff
Moscow, Russia 134.0116:04.3 7:45:34.3Pdiff
Bergen, Norway 136.1816:13.9 7:45:43.9Pdiff
London, England 144.7316:51.9 7:46:21.9Pdiff
Nairobi, Kenya 144.8916:52.6 7:46:22.6Pdiff
Rome, Italy 154.1119:40.5 7:49:10.5PKPdf

Travel Time Information and Calculator

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