Theoretical P-Wave Travel Times

Magnitude 4.5 EASTERN HONSHU, JAPAN
Tuesday, May 21, 2013 at 13:13:55 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 1.27 0:23.911:26:14.9Pn
Beijing, China 18.20 4:12.811:30:03.8Pn
Agana, Guam 23.83 5:13.311:31:04.3P
Kathmandu, Nepal 46.06 8:23.911:34:14.9P
Anchorage, Alaska 49.38 8:49.611:34:40.6P
Honolulu, Hawaii 56.12 9:39.511:35:30.5P
Brisbane, Australia 65.3210:42.311:36:33.3P
Moscow, Russia 66.3310:48.811:36:39.8P
Seattle, Washington 68.7111:03.911:36:54.9P
San Francisco, California 74.1211:36.611:37:27.6P
Bergen, Norway 75.9911:47.411:37:38.4P
Los Angeles, California 79.0412:04.411:37:55.4P
Golden, Colorado 83.3912:27.511:38:18.5P
Phoenix, Arizona 83.4312:27.711:38:18.7P
Wellington, New Zealand 84.2912:32.111:38:23.1P
Duluth, Minnesota 84.7812:34.611:38:25.6P
London, England 85.1012:36.211:38:27.2P
Albuquerque, New Mexico 85.7312:39.311:38:30.3P
Rome, Italy 87.7912:49.411:38:40.4P
Wichita, Kansas 89.1112:55.611:38:46.6P
St. Louis, Missouri 92.0013:09.011:38:60.0P
Ottawa, Canada 92.1713:09.811:39:00.8P
Bangor, Maine 94.8013:21.811:39:12.8P
Boston, Massachusetts 96.4013:29.111:39:20.1P
Knoxville, Tennessee 96.5813:29.911:39:20.9P
New York, New York 96.9313:31.511:39:22.5P
Philadelphia, Pennsylvania 97.2113:32.711:39:23.7P
Washington, D.C. 97.4613:33.911:39:24.9P
Brownsville, Texas 97.7713:35.211:39:26.2P
Nairobi, Kenya 100.7813:48.611:39:39.6Pdiff
Mexico City, Mexico 101.4013:51.411:39:42.4Pdiff
Miami, Florida 107.4114:18.011:40:09.0Pdiff
San Juan, Puerto Rico 119.9015:13.511:41:04.5Pdiff
Lima, Peru 139.0816:38.611:42:29.6Pdiff
Palmer Station, Antarctica 146.3819:40.311:45:31.3PKPbc

Travel Time Information and Calculator

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