Theoretical P-Wave Travel Times

Magnitude 5.5 TONGA
Monday, September 24, 2012 at 10:31:23 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 22.09 4:55.510:36:18.5P
Brisbane, Australia 30.47 6:13.210:37:36.2P
Honolulu, Hawaii 45.17 8:17.010:39:40.0P
Agana, Guam 53.01 9:17.110:40:40.1P
Tokyo, Japan 71.4011:20.610:42:43.6P
San Francisco, California 76.2111:48.910:43:11.9P
Los Angeles, California 76.5011:50.510:43:13.5P
Palmer Station, Antarctica 77.8811:58.310:43:21.3P
Phoenix, Arizona 80.3512:11.810:43:34.8P
Seattle, Washington 82.9412:25.410:43:48.4P
Mexico City, Mexico 83.7612:29.710:43:52.7P
Anchorage, Alaska 84.4212:33.010:43:56.0P
Albuquerque, New Mexico 85.0412:36.110:43:59.1P
Brownsville, Texas 87.8712:50.010:44:13.0P
Golden, Colorado 88.3412:52.210:44:15.2P
Beijing, China 88.6612:53.710:44:16.7P
Lima, Peru 92.2313:10.310:44:33.3P
Wichita, Kansas 92.9313:13.510:44:36.5P
St. Louis, Missouri 98.4313:38.410:45:01.4Pdiff
Duluth, Minnesota 99.9013:45.010:45:08.0Pdiff
Knoxville, Tennessee 101.3813:51.510:45:14.5Pdiff
Miami, Florida 102.3813:56.010:45:19.0Pdiff
Washington, D.C. 108.4014:22.710:45:45.7Pdiff
Kathmandu, Nepal 108.4514:22.910:45:45.9Pdiff
Philadelphia, Pennsylvania 110.0314:29.910:45:52.9Pdiff
Ottawa, Canada 110.6214:32.510:45:55.5Pdiff
New York, New York 111.0514:34.410:45:57.4Pdiff
San Juan, Puerto Rico 112.8314:42.310:46:05.4Pdiff
Boston, Massachusetts 113.4714:45.210:46:08.2Pdiff
Bangor, Maine 115.4214:53.810:46:16.8Pdiff
Moscow, Russia 138.1016:34.510:47:57.5Pdiff
Bergen, Norway 140.8416:46.710:48:09.7Pdiff
Nairobi, Kenya 142.3116:53.210:48:16.2Pdiff
London, England 149.3919:45.710:51:08.7PKPdf
Rome, Italy 158.6119:59.210:51:22.2PKPdf

Travel Time Information and Calculator

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