Theoretical P-Wave Travel Times

Magnitude 5.3 TONGA
Monday, May 02, 2011 at 13:20:56 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 27.34 5:46.413:26:42.4P
Brisbane, Australia 32.49 6:32.013:27:28.0P
Honolulu, Hawaii 40.04 7:36.513:28:32.5P
Agana, Guam 49.61 8:52.813:29:48.8P
Tokyo, Japan 66.8810:53.813:31:49.8P
San Francisco, California 72.0311:25.613:32:21.6P
Los Angeles, California 72.6811:29.513:32:25.5P
Phoenix, Arizona 76.7811:53.313:32:49.3P
Seattle, Washington 78.2712:01.613:32:57.6P
Anchorage, Alaska 78.9212:05.213:33:01.2P
Albuquerque, New Mexico 81.5412:19.313:33:15.3P
Mexico City, Mexico 81.7112:20.213:33:16.2P
Palmer Station, Antarctica 83.2212:28.013:33:24.0P
Golden, Colorado 84.5612:34.913:33:30.9P
Beijing, China 84.6112:35.213:33:31.2P
Brownsville, Texas 85.3312:38.813:33:34.8P
Wichita, Kansas 89.4812:58.813:33:54.8P
Lima, Peru 93.7413:18.513:34:14.5P
St. Louis, Missouri 95.0713:24.513:34:20.5P
Duluth, Minnesota 95.9313:28.413:34:24.4P
Knoxville, Tennessee 98.3313:39.213:34:35.2P
Miami, Florida 100.3013:47.913:34:43.9Pdiff
Washington, D.C. 105.2214:09.813:35:05.8Pdiff
Kathmandu, Nepal 105.9914:13.213:35:09.2Pdiff
Philadelphia, Pennsylvania 106.7914:16.713:35:12.7Pdiff
Ottawa, Canada 106.9214:17.313:35:13.3Pdiff
New York, New York 107.7514:21.013:35:17.0Pdiff
Boston, Massachusetts 110.0614:31.213:35:27.2Pdiff
San Juan, Puerto Rico 111.7514:38.713:35:34.7Pdiff
Bangor, Maine 111.8114:39.013:35:35.0Pdiff
Moscow, Russia 132.9216:12.713:37:08.7Pdiff
Bergen, Norway 135.2016:22.813:37:18.8Pdiff
London, England 143.8017:01.013:37:57.0Pdiff
Nairobi, Kenya 144.9117:05.913:38:01.9Pdiff
Rome, Italy 153.0519:52.713:40:48.7PKPdf

Travel Time Information and Calculator

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