Theoretical P-Wave Travel Times

Magnitude 5.2 TONGA
Tuesday, May 17, 2011 at 10:35:32 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 26.95 5:37.310:41:09.3P
Brisbane, Australia 31.73 6:19.710:41:51.7P
Honolulu, Hawaii 40.51 7:34.510:43:06.5P
Agana, Guam 49.06 8:42.610:44:14.6P
Tokyo, Japan 66.5210:45.310:46:17.3P
San Francisco, California 72.6611:23.110:46:55.1P
Los Angeles, California 73.3511:27.210:46:59.2P
Phoenix, Arizona 77.4711:50.910:47:22.9P
Seattle, Washington 78.8311:58.410:47:30.4P
Anchorage, Alaska 79.2412:00.610:47:32.6P
Albuquerque, New Mexico 82.2312:16.610:47:48.6P
Mexico City, Mexico 82.4912:17.910:47:49.9P
Palmer Station, Antarctica 83.3412:22.410:47:54.4P
Beijing, China 84.1712:26.610:47:58.6P
Golden, Colorado 85.2312:31.910:48:03.9P
Brownsville, Texas 86.0912:36.210:48:08.2P
Wichita, Kansas 90.1812:55.610:48:27.6P
Lima, Peru 94.4613:15.310:48:47.3P
St. Louis, Missouri 95.7713:21.310:48:53.3P
Duluth, Minnesota 96.5713:24.910:48:56.9P
Knoxville, Tennessee 99.0513:36.010:49:08.0Pdiff
Miami, Florida 101.0713:44.910:49:16.9Pdiff
Kathmandu, Nepal 105.3614:04.010:49:36.0Pdiff
Washington, D.C. 105.9414:06.510:49:38.5Pdiff
Philadelphia, Pennsylvania 107.5014:13.510:49:45.5Pdiff
Ottawa, Canada 107.6014:13.910:49:45.9Pdiff
New York, New York 108.4514:17.710:49:49.7Pdiff
Boston, Massachusetts 110.7514:27.910:49:59.9Pdiff
Bangor, Maine 112.4914:35.610:50:07.6Pdiff
San Juan, Puerto Rico 112.5314:35.810:50:07.8Pdiff
Moscow, Russia 132.7416:05.510:51:37.5Pdiff
Bergen, Norway 135.3516:17.110:51:49.1Pdiff
London, England 144.0416:55.710:52:27.7Pdiff
Nairobi, Kenya 144.1416:56.110:52:28.1Pdiff
Rome, Italy 153.0519:46.110:55:18.1PKPdf

Travel Time Information and Calculator

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