Theoretical P-Wave Travel Times

Magnitude 7.4 NEAR EAST COAST OF HONSHU, JAPAN
Thursday, April 07, 2011 at 14:32:41 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 2.99 0:45.714:33:26.7Pn
Beijing, China 19.63 4:26.514:37:07.5P
Agana, Guam 24.83 5:20.214:38:01.2P
Anchorage, Alaska 47.21 8:30.514:41:11.5P
Kathmandu, Nepal 47.77 8:34.814:41:15.8P
Honolulu, Hawaii 54.27 9:23.714:42:04.7P
Brisbane, Australia 66.2610:45.914:43:26.9P
Moscow, Russia 66.3510:46.414:43:27.4P
Seattle, Washington 66.4610:47.214:43:28.2P
San Francisco, California 71.8611:20.614:44:01.6P
Bergen, Norway 75.3911:41.414:44:22.4P
Los Angeles, California 76.7811:49.314:44:30.3P
Golden, Colorado 81.1512:13.314:44:54.3P
Phoenix, Arizona 81.1712:13.414:44:54.4P
Duluth, Minnesota 82.6612:21.214:45:02.2P
Albuquerque, New Mexico 83.4812:25.414:45:06.4P
London, England 84.5912:31.114:45:12.1P
Wellington, New Zealand 84.7312:31.814:45:12.8P
Wichita, Kansas 86.8912:42.514:45:23.5P
Rome, Italy 87.7812:46.714:45:27.7P
St. Louis, Missouri 89.8212:56.414:45:37.4P
Ottawa, Canada 90.1912:58.114:45:39.1P
Bangor, Maine 92.9013:10.614:45:51.6P
Knoxville, Tennessee 94.4213:17.614:45:58.6P
Boston, Massachusetts 94.4513:17.714:45:58.7P
New York, New York 94.9313:19.914:46:00.9P
Philadelphia, Pennsylvania 95.1913:21.114:46:02.1P
Washington, D.C. 95.4113:22.114:46:03.1P
Brownsville, Texas 95.5113:22.514:46:03.5P
Mexico City, Mexico 99.1413:38.814:46:19.8Pdiff
Nairobi, Kenya 102.4113:53.314:46:34.3Pdiff
Miami, Florida 105.2314:05.814:46:46.8Pdiff
San Juan, Puerto Rico 117.8415:01.814:47:42.8Pdiff
Lima, Peru 136.8416:26.114:49:07.1Pdiff
Palmer Station, Antarctica 147.1519:39.014:52:20.0PKPdf

Travel Time Information and Calculator

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