Theoretical P-Wave Travel Times

Magnitude 4.1 IZU ISLANDS, JAPAN REGION
Tuesday, April 23, 2013 at 14:17:57 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 6.57 1:42.514:19:39.5P
Agana, Guam 16.64 3:26.714:21:23.7P
Beijing, China 21.09 4:07.414:22:04.4P
Kathmandu, Nepal 46.50 7:40.114:25:37.1P
Anchorage, Alaska 56.07 8:49.514:26:46.5P
Honolulu, Hawaii 57.48 8:59.214:26:56.2P
Brisbane, Australia 58.01 9:02.814:26:59.8P
Moscow, Russia 72.1410:31.814:28:28.8P
Seattle, Washington 74.6710:46.314:28:43.3P
Wellington, New Zealand 77.6911:02.914:28:59.9P
San Francisco, California 79.2311:11.114:29:08.1P
Bergen, Norway 82.9311:30.214:29:27.2P
Los Angeles, California 84.0211:35.614:29:32.6P
Phoenix, Arizona 88.6711:57.714:29:54.7P
Golden, Colorado 89.4012:01.114:29:58.1P
Albuquerque, New Mexico 91.3612:10.114:30:07.1P
Duluth, Minnesota 91.6612:11.514:30:08.5P
London, England 91.8712:12.414:30:09.4P
Rome, Italy 93.5612:20.114:30:17.1P
Wichita, Kansas 95.3512:28.214:30:25.2P
St. Louis, Missouri 98.6012:42.714:30:39.7Pdiff
Ottawa, Canada 99.5112:46.714:30:43.7Pdiff
Nairobi, Kenya 100.8612:52.714:30:49.7Pdiff
Bangor, Maine 102.3012:59.114:30:56.1Pdiff
Brownsville, Texas 103.2713:03.414:31:00.4Pdiff
Knoxville, Tennessee 103.2813:03.414:31:00.4Pdiff
Boston, Massachusetts 103.8113:05.814:31:02.8Pdiff
New York, New York 104.2113:07.614:31:04.6Pdiff
Philadelphia, Pennsylvania 104.4413:08.614:31:05.6Pdiff
Washington, D.C. 104.6013:09.314:31:06.3Pdiff
Mexico City, Mexico 106.3113:16.914:31:13.9Pdiff
Miami, Florida 113.9413:50.814:31:47.8Pdiff
San Juan, Puerto Rico 126.9814:48.714:32:45.7Pdiff
Palmer Station, Antarctica 139.0715:42.314:33:39.3Pdiff
Lima, Peru 142.8015:58.914:33:55.9Pdiff

Travel Time Information and Calculator

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