Theoretical P-Wave Travel Times

Magnitude 5.6 TONGA
Friday, November 11, 2011 at 15:02:19 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 25.79 5:32.015:07:51.0P
Brisbane, Australia 32.80 6:34.315:08:53.4P
Honolulu, Hawaii 41.47 7:47.915:10:06.9P
Agana, Guam 51.91 9:09.715:11:28.7P
Tokyo, Japan 69.3811:09.015:13:28.0P
San Francisco, California 72.7811:29.715:13:48.7P
Los Angeles, California 73.2011:32.215:13:51.2P
Phoenix, Arizona 77.1711:55.015:14:14.0P
Seattle, Washington 79.3512:07.115:14:26.1P
Anchorage, Alaska 80.7412:14.715:14:33.7P
Palmer Station, Antarctica 80.7512:14.715:14:33.7P
Mexico City, Mexico 81.3112:17.715:14:36.7P
Albuquerque, New Mexico 81.8912:20.715:14:39.7P
Golden, Colorado 85.0712:37.115:14:56.1P
Brownsville, Texas 85.1712:37.615:14:56.6P
Beijing, China 87.0512:46.815:15:05.8P
Wichita, Kansas 89.8112:59.915:15:18.9P
Lima, Peru 91.9413:09.815:15:28.8P
St. Louis, Missouri 95.3513:25.415:15:44.4P
Duluth, Minnesota 96.5613:30.915:15:49.9P
Knoxville, Tennessee 98.4413:39.315:15:58.3Pdiff
Miami, Florida 99.9313:45.915:16:04.9Pdiff
Washington, D.C. 105.4114:10.215:16:29.2Pdiff
Philadelphia, Pennsylvania 107.0214:17.315:16:36.3Pdiff
Ottawa, Canada 107.4014:19.015:16:38.0Pdiff
New York, New York 108.0014:21.715:16:40.7Pdiff
Kathmandu, Nepal 108.0914:22.115:16:41.1Pdiff
Boston, Massachusetts 110.3714:32.215:16:51.2Pdiff
San Juan, Puerto Rico 110.9514:34.815:16:53.8Pdiff
Bangor, Maine 112.2414:40.515:16:59.5Pdiff
Moscow, Russia 135.4116:23.415:18:42.4Pdiff
Bergen, Norway 137.3116:31.815:18:50.8Pdiff
Nairobi, Kenya 145.1119:37.415:21:56.4PKPbc
London, England 145.7519:39.415:21:58.4PKPbc
Rome, Italy 155.3919:55.715:22:14.7PKPdf

Travel Time Information and Calculator

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