Theoretical P-Wave Travel Times

Magnitude 4.8 HOKKAIDO, JAPAN REGION
Tuesday, January 29, 2013 at 13:17:22 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
Tokyo, Japan 7.74 1:50.113:19:11.1Pn
Beijing, China 20.91 4:38.313:21:59.3P
Agana, Guam 29.09 5:55.913:23:16.9P
Anchorage, Alaska 42.63 7:51.413:25:12.4P
Kathmandu, Nepal 49.34 8:44.213:26:05.2P
Honolulu, Hawaii 52.60 9:08.713:26:29.7P
Seattle, Washington 62.1510:16.113:27:37.1P
Moscow, Russia 63.9410:28.013:27:49.0P
San Francisco, California 67.9210:53.613:28:14.6P
Brisbane, Australia 70.2911:08.313:28:29.3P
Bergen, Norway 71.9111:18.113:28:39.1P
Los Angeles, California 72.8911:23.913:28:44.9P
Golden, Colorado 76.7911:46.513:29:07.5P
Phoenix, Arizona 77.1411:48.513:29:09.5P
Duluth, Minnesota 77.9911:53.213:29:14.2P
Albuquerque, New Mexico 79.2712:00.213:29:21.2P
London, England 81.2112:10.713:29:31.7P
Wichita, Kansas 82.4312:17.113:29:38.1P
Rome, Italy 85.2112:31.213:29:52.2P
St. Louis, Missouri 85.2312:31.413:29:52.4P
Ottawa, Canada 85.4212:32.313:29:53.3P
Wellington, New Zealand 88.0312:45.013:30:06.0P
Bangor, Maine 88.1312:45.413:30:06.4P
Boston, Massachusetts 89.6812:52.713:30:13.7P
Knoxville, Tennessee 89.7912:53.213:30:14.2P
New York, New York 90.1712:55.013:30:16.0P
Philadelphia, Pennsylvania 90.4312:56.213:30:17.2P
Washington, D.C. 90.6712:57.313:30:18.3P
Brownsville, Texas 91.3313:00.413:30:21.4P
Mexico City, Mexico 95.2013:18.113:30:39.1P
Miami, Florida 100.6513:42.513:31:03.5Pdiff
Nairobi, Kenya 103.5013:55.113:31:16.1Pdiff
San Juan, Puerto Rico 113.1114:37.813:31:58.8Pdiff
Lima, Peru 133.1816:06.913:33:27.9Pdiff
Palmer Station, Antarctica 150.6819:41.813:37:02.8PKPdf

Travel Time Information and Calculator

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