Theoretical P-Wave Travel Times

Magnitude 4.8 NEAR THE EAST COAST OF HONSHU, JAPAN
Thursday, January 31, 2013 at 21:20:32 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
Tokyo, Japan 1.25 0:23.514:54:04.5Pn
Beijing, China 19.12 4:23.014:58:04.0P
Agana, Guam 23.51 5:10.314:58:51.3P
Kathmandu, Nepal 46.99 8:31.115:02:12.1P
Anchorage, Alaska 48.94 8:46.215:02:27.2P
Honolulu, Hawaii 55.21 9:32.915:03:13.9P
Brisbane, Australia 64.9910:40.115:04:21.1P
Moscow, Russia 66.9810:52.915:04:33.9P
Seattle, Washington 68.1411:00.215:04:41.2P
San Francisco, California 73.4511:32.515:05:13.5P
Bergen, Norway 76.4511:49.915:05:30.9P
Los Angeles, California 78.3612:00.615:05:41.6P
Phoenix, Arizona 82.7812:24.315:06:05.3P
Golden, Colorado 82.8412:24.615:06:05.6P
Wellington, New Zealand 83.7812:29.415:06:10.4P
Duluth, Minnesota 84.3912:32.515:06:13.6P
Albuquerque, New Mexico 85.1312:36.215:06:17.2P
London, England 85.5912:38.515:06:19.5P
Rome, Italy 88.4412:52.415:06:33.4P
Wichita, Kansas 88.6012:53.115:06:34.1P
St. Louis, Missouri 91.5513:06.915:06:47.9P
Ottawa, Canada 91.9113:08.515:06:49.5P
Bangor, Maine 94.6113:20.915:07:01.9P
Knoxville, Tennessee 96.1513:27.915:07:08.9P
Boston, Massachusetts 96.1713:28.015:07:09.0P
New York, New York 96.6613:30.215:07:11.2P
Philadelphia, Pennsylvania 96.9213:31.415:07:12.4P
Washington, D.C. 97.1413:32.415:07:13.4P
Brownsville, Texas 97.1513:32.415:07:13.4P
Mexico City, Mexico 100.7213:48.315:07:29.3Pdiff
Nairobi, Kenya 101.7013:52.615:07:33.6Pdiff
Miami, Florida 106.9514:15.915:07:56.9Pdiff
San Juan, Puerto Rico 119.5715:12.015:08:53.0Pdiff
Lima, Peru 138.3216:35.215:10:16.2Pdiff
Palmer Station, Antarctica 146.0019:39.115:13:20.1PKPbc

Travel Time Information and Calculator

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