Theoretical P-Wave Travel Times

Magnitude 4.5 WESTERN HONSHU, JAPAN
Wednesday, February 20, 2013 at 21:23:08 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 3.68 1:06.518:56:14.5Pn
Beijing, China 15.40 3:18.318:58:26.3P
Agana, Guam 23.85 4:42.018:59:50.0P
Kathmandu, Nepal 42.82 7:23.619:02:31.6P
Anchorage, Alaska 52.23 8:35.219:03:43.2P
Honolulu, Hawaii 59.51 9:26.319:04:34.3P
Moscow, Russia 65.1510:03.419:05:11.4P
Brisbane, Australia 65.1710:03.519:05:11.5P
Seattle, Washington 71.8210:44.219:05:52.2P
Bergen, Norway 75.7211:06.719:06:14.7P
San Francisco, California 77.4411:16.219:06:24.2P
Los Angeles, California 82.3711:42.419:06:50.4P
London, England 84.6711:53.919:07:01.9P
Wellington, New Zealand 84.8711:54.919:07:02.9P
Golden, Colorado 86.4612:02.619:07:10.6P
Rome, Italy 86.6012:03.319:07:11.3P
Phoenix, Arizona 86.7112:03.819:07:11.8P
Duluth, Minnesota 87.4412:07.319:07:15.3P
Albuquerque, New Mexico 88.9212:14.219:07:22.2P
Wichita, Kansas 92.0812:28.819:07:36.8P
Ottawa, Canada 94.4412:39.619:07:47.6P
St. Louis, Missouri 94.8012:41.219:07:49.2P
Bangor, Maine 96.8712:50.519:07:58.5P
Nairobi, Kenya 97.5612:53.519:08:01.5Pdiff
Boston, Massachusetts 98.5912:58.119:08:06.1Pdiff
New York, New York 99.2513:01.019:08:09.0Pdiff
Knoxville, Tennessee 99.3113:01.319:08:09.3Pdiff
Philadelphia, Pennsylvania 99.5813:02.519:08:10.5Pdiff
Washington, D.C. 99.9113:04.019:08:12.0Pdiff
Brownsville, Texas 100.9713:08.719:08:16.7Pdiff
Mexico City, Mexico 104.7213:25.319:08:33.3Pdiff
Miami, Florida 110.2113:49.719:08:57.7Pdiff
San Juan, Puerto Rico 122.3314:43.519:09:51.5Pdiff
Lima, Peru 142.5116:13.019:11:21.0Pdiff
Palmer Station, Antarctica 146.1718:57.119:14:05.1PKPdf

Travel Time Information and Calculator

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