Theoretical P-Wave Travel Times

Magnitude 4.1 NEAR THE EAST COAST OF HONSHU, JAPAN

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 5.09 1:13.612:23:22.6Pn
Beijing, China 19.61 4:23.112:26:32.1P
Agana, Guam 26.94 5:35.412:27:44.4P
Anchorage, Alaska 45.30 8:11.312:30:20.3P
Kathmandu, Nepal 47.98 8:32.312:30:41.3P
Honolulu, Hawaii 53.94 9:17.112:31:26.1P
Seattle, Washington 64.7410:31.712:32:40.7P
Moscow, Russia 64.8410:32.312:32:41.3P
Brisbane, Australia 68.3110:54.512:33:03.5P
San Francisco, California 70.3711:07.212:33:16.2P
Bergen, Norway 73.5011:26.012:33:35.0P
Los Angeles, California 75.3211:36.512:33:45.5P
Golden, Colorado 79.4011:59.312:34:08.3P
Phoenix, Arizona 79.6312:00.612:34:09.6P
Duluth, Minnesota 80.6712:06.212:34:15.2P
Albuquerque, New Mexico 81.8212:12.312:34:21.3P
London, England 82.7412:17.012:34:26.0P
Wichita, Kansas 85.0712:28.912:34:37.9P
Rome, Italy 86.2212:34.612:34:43.6P
Wellington, New Zealand 86.5512:36.212:34:45.2P
St. Louis, Missouri 87.9112:42.712:34:51.7P
Ottawa, Canada 88.0912:43.612:34:52.6P
Bangor, Maine 90.7612:56.112:35:05.1P
Boston, Massachusetts 92.3413:03.412:35:12.4P
Knoxville, Tennessee 92.4713:04.012:35:13.0P
New York, New York 92.8413:05.712:35:14.7P
Philadelphia, Pennsylvania 93.1113:06.912:35:15.9P
Washington, D.C. 93.3613:08.112:35:17.1P
Brownsville, Texas 93.8813:10.412:35:19.4P
Mexico City, Mexico 97.6513:27.512:35:36.5P
Nairobi, Kenya 102.4413:48.812:35:57.8Pdiff
Miami, Florida 103.3213:52.712:36:01.7Pdiff
San Juan, Puerto Rico 115.7914:48.012:36:57.0Pdiff
Lima, Peru 135.5316:15.712:38:24.7Pdiff
Palmer Station, Antarctica 149.0819:37.412:41:46.4PKPdf

Travel Time Information and Calculator

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