Theoretical P-Wave Travel Times

Magnitude 5.1 TONGA REGION
Tuesday, January 10, 2012 at 13:08:43 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 26.08 5:30.213:14:13.2P
Brisbane, Australia 33.04 6:31.913:15:14.9P
Honolulu, Hawaii 41.18 7:40.813:16:23.8P
Agana, Guam 51.89 9:04.813:17:47.8P
Tokyo, Japan 69.2811:03.513:19:46.5P
San Francisco, California 72.4811:23.013:20:06.0P
Los Angeles, California 72.9111:25.513:20:08.5P
Phoenix, Arizona 76.8811:48.513:20:31.5P
Seattle, Washington 79.0512:00.513:20:43.5P
Anchorage, Alaska 80.4612:08.113:20:51.1P
Palmer Station, Antarctica 80.9312:10.713:20:53.7P
Mexico City, Mexico 81.0712:11.413:20:54.4P
Albuquerque, New Mexico 81.6012:14.213:20:57.2P
Golden, Colorado 84.7812:30.613:21:13.6P
Brownsville, Texas 84.9112:31.213:21:14.2P
Beijing, China 86.9812:41.513:21:24.5P
Wichita, Kansas 89.5312:53.513:21:36.5P
Lima, Peru 91.8613:04.313:21:47.3P
St. Louis, Missouri 95.0713:19.113:22:02.1P
Duluth, Minnesota 96.2713:24.513:22:07.5P
Knoxville, Tennessee 98.1713:33.013:22:16.0P
Miami, Florida 99.6913:39.713:22:22.7Pdiff
Washington, D.C. 105.1314:03.913:22:46.9Pdiff
Philadelphia, Pennsylvania 106.7414:11.013:22:54.0Pdiff
Ottawa, Canada 107.1114:12.713:22:55.7Pdiff
New York, New York 107.7214:15.413:22:58.4Pdiff
Kathmandu, Nepal 108.1214:17.213:23:00.2Pdiff
Boston, Massachusetts 110.0914:25.913:23:08.9Pdiff
San Juan, Puerto Rico 110.7414:28.813:23:11.8Pdiff
Bangor, Maine 111.9514:34.213:23:17.2Pdiff
Moscow, Russia 135.2316:17.513:25:00.5Pdiff
Bergen, Norway 137.0416:25.613:25:08.6Pdiff
Nairobi, Kenya 145.3719:33.113:28:16.1PKPbc
London, England 145.4719:33.413:28:16.4PKPbc
Rome, Italy 155.1719:50.213:28:33.2PKPdf

Travel Time Information and Calculator

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