Theoretical P-Wave Travel Times

Magnitude 4.7 NEAR THE EAST COAST OF HONSHU, JAPAN
Saturday, February 23, 2013 at 11:44:22 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 1.17 0:20.411:27:35.4Pn
Beijing, China 20.07 4:30.811:31:45.8P
Agana, Guam 21.93 4:50.911:32:05.9P
Kathmandu, Nepal 47.64 8:33.211:35:48.2P
Anchorage, Alaska 49.87 8:50.411:36:05.4P
Honolulu, Hawaii 54.78 9:26.811:36:41.8P
Brisbane, Australia 63.4010:26.611:37:41.6P
Moscow, Russia 68.5010:59.411:38:14.4P
Seattle, Washington 68.8511:01.611:38:16.6P
San Francisco, California 73.9211:32.311:38:47.3P
Bergen, Norway 78.0511:55.811:39:10.8P
Los Angeles, California 78.8011:59.911:39:14.9P
Wellington, New Zealand 82.1912:18.111:39:33.1P
Phoenix, Arizona 83.2912:23.811:39:38.8P
Golden, Colorado 83.5712:25.211:39:40.2P
Duluth, Minnesota 85.4012:34.511:39:49.5P
Albuquerque, New Mexico 85.7512:36.211:39:51.2P
London, England 87.1812:43.211:39:58.2P
Wichita, Kansas 89.4012:53.711:40:08.7P
Rome, Italy 89.9612:56.311:40:11.4P
St. Louis, Missouri 92.4713:07.911:40:22.9P
Ottawa, Canada 93.1013:10.811:40:25.8P
Bangor, Maine 95.8713:23.511:40:38.5P
Knoxville, Tennessee 97.1013:29.011:40:44.0P
Boston, Massachusetts 97.3813:30.311:40:45.3P
Brownsville, Texas 97.7513:31.911:40:46.9P
New York, New York 97.8213:32.211:40:47.2P
Philadelphia, Pennsylvania 98.0613:33.311:40:48.3P
Washington, D.C. 98.2513:34.111:40:49.1P
Mexico City, Mexico 101.1613:47.111:41:02.1Pdiff
Nairobi, Kenya 102.3813:52.511:41:07.5Pdiff
Miami, Florida 107.8514:16.811:41:31.8Pdiff
San Juan, Puerto Rico 120.6615:13.611:42:28.6Pdiff
Lima, Peru 138.5316:33.011:43:48.0Pdiff
Palmer Station, Antarctica 144.4016:59.011:44:14.0Pdiff

Travel Time Information and Calculator

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