Theoretical P-Wave Travel Times

Magnitude 4.3 TONGA
Friday, November 04, 2011 at 22:01:12 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 26.48 5:10.122:06:22.1P
Brisbane, Australia 31.55 5:54.622:07:06.6P
Honolulu, Hawaii 40.95 7:13.522:08:25.5P
Agana, Guam 49.38 8:19.422:09:31.4P
Tokyo, Japan 66.9410:20.422:11:32.4P
San Francisco, California 73.0110:57.122:12:09.1P
Los Angeles, California 73.6611:00.922:12:12.9P
Phoenix, Arizona 77.7711:24.022:12:36.0P
Seattle, Washington 79.2311:31.922:12:43.9P
Anchorage, Alaska 79.7211:34.622:12:46.6P
Albuquerque, New Mexico 82.5211:49.222:13:01.2P
Mexico City, Mexico 82.6411:49.822:13:01.8P
Palmer Station, Antarctica 82.8511:50.922:13:02.9P
Beijing, China 84.5511:59.422:13:11.4P
Golden, Colorado 85.5512:04.322:13:16.3P
Brownsville, Texas 86.2812:07.922:13:19.9P
Wichita, Kansas 90.4712:27.522:13:39.5P
Lima, Peru 94.2912:45.122:13:57.1P
St. Louis, Missouri 96.0512:53.022:14:05.0P
Duluth, Minnesota 96.9112:56.922:14:08.9P
Knoxville, Tennessee 99.3013:07.522:14:19.5Pdiff
Miami, Florida 101.2313:16.022:14:28.0Pdiff
Kathmandu, Nepal 105.6113:35.522:14:47.5Pdiff
Washington, D.C. 106.2013:38.122:14:50.1Pdiff
Philadelphia, Pennsylvania 107.7713:45.122:14:57.1Pdiff
Ottawa, Canada 107.9113:45.722:14:57.7Pdiff
New York, New York 108.7313:49.322:15:01.3Pdiff
Boston, Massachusetts 111.0413:59.622:15:11.6Pdiff
San Juan, Puerto Rico 112.6114:06.522:15:18.5Pdiff
Bangor, Maine 112.7914:07.422:15:19.4Pdiff
Moscow, Russia 133.2215:38.122:16:50.1Pdiff
Bergen, Norway 135.8615:49.822:17:01.8Pdiff
Nairobi, Kenya 143.9716:25.822:17:37.8Pdiff
London, England 144.5416:28.322:17:40.3Pdiff
Rome, Italy 153.5519:15.622:20:27.6PKPdf

Travel Time Information and Calculator

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