Theoretical P-Wave Travel Times

Magnitude 6.7 NEAR EAST COAST OF HONSHU, JAPAN
Friday, September 16, 2011 at 19:26:42 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 5.18 1:15.019:27:57.0Pn
Beijing, China 20.10 4:30.519:31:12.5P
Agana, Guam 26.78 5:36.419:32:18.4P
Anchorage, Alaska 45.09 8:12.319:34:54.3P
Kathmandu, Nepal 48.46 8:38.819:35:20.8P
Honolulu, Hawaii 53.46 9:16.319:35:58.3P
Seattle, Washington 64.4610:32.819:37:14.8P
Moscow, Russia 65.2310:37.719:37:19.7P
Brisbane, Australia 68.1110:56.119:37:38.1P
San Francisco, California 70.0311:08.019:37:50.0P
Bergen, Norway 73.7911:30.619:38:12.6P
Los Angeles, California 74.9711:37.519:38:19.5P
Golden, Colorado 79.1312:00.919:38:42.9P
Phoenix, Arizona 79.3012:01.819:38:43.8P
Duluth, Minnesota 80.5012:08.319:38:50.3P
Albuquerque, New Mexico 81.5312:13.719:38:55.7P
London, England 83.0312:21.619:39:03.6P
Wichita, Kansas 84.8312:30.719:39:12.7P
Wellington, New Zealand 86.2512:37.819:39:19.8P
Rome, Italy 86.6012:39.519:39:21.5P
St. Louis, Missouri 87.7012:44.819:39:26.8P
Ottawa, Canada 87.9912:46.219:39:28.2P
Bangor, Maine 90.7012:58.919:39:40.9P
Boston, Massachusetts 92.2513:06.019:39:48.0P
Knoxville, Tennessee 92.2813:06.219:39:48.2P
New York, New York 92.7313:08.319:39:50.3P
Philadelphia, Pennsylvania 92.9913:09.519:39:51.5P
Washington, D.C. 93.2213:10.519:39:52.5P
Brownsville, Texas 93.5813:12.119:39:54.1P
Mexico City, Mexico 97.3113:29.119:40:11.1P
Nairobi, Kenya 102.9313:54.019:40:36.0Pdiff
Miami, Florida 103.1113:54.819:40:36.8Pdiff
San Juan, Puerto Rico 115.6514:50.519:41:32.5Pdiff
Lima, Peru 135.1616:17.119:42:59.1Pdiff
Palmer Station, Antarctica 148.8119:40.219:46:22.2PKPdf

Travel Time Information and Calculator

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