Theoretical P-Wave Travel Times

Magnitude 4.5 EASTERN HONSHU, JAPAN
Sunday, April 21, 2013 at 12:37:06 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 1.80 0:28.510:28:04.5Pn
Beijing, China 18.53 4:12.810:31:48.8P
Agana, Guam 24.27 5:13.010:32:49.0P
Kathmandu, Nepal 46.51 8:22.810:35:58.8P
Anchorage, Alaska 48.64 8:39.410:36:15.4P
Honolulu, Hawaii 55.60 9:31.110:37:07.1P
Brisbane, Australia 65.7610:40.310:38:16.3P
Moscow, Russia 66.1810:43.110:38:19.1P
Seattle, Washington 67.9610:54.410:38:30.4P
San Francisco, California 73.3911:27.510:39:03.5P
Bergen, Norway 75.6511:40.610:39:16.6P
Los Angeles, California 78.3211:55.610:39:31.6P
Golden, Colorado 82.6512:18.710:39:54.7P
Phoenix, Arizona 82.7012:19.010:39:55.0P
Duluth, Minnesota 84.0512:25.910:40:01.9P
Wellington, New Zealand 84.5812:28.610:40:04.6P
London, England 84.7912:29.710:40:05.7P
Albuquerque, New Mexico 84.9912:30.710:40:06.7P
Rome, Italy 87.6412:43.710:40:19.7P
Wichita, Kansas 88.3612:47.110:40:23.1P
St. Louis, Missouri 91.2513:00.610:40:36.6P
Ottawa, Canada 91.4613:01.510:40:37.5P
Bangor, Maine 94.1113:13.710:40:49.7P
Boston, Massachusetts 95.7013:21.010:40:56.9P
Knoxville, Tennessee 95.8313:21.610:40:57.6P
New York, New York 96.2113:23.310:40:59.3P
Philadelphia, Pennsylvania 96.4913:24.510:41:00.5P
Washington, D.C. 96.7413:25.610:41:01.6P
Brownsville, Texas 97.0313:27.010:41:03.0P
Mexico City, Mexico 100.6713:43.210:41:19.2Pdiff
Nairobi, Kenya 101.2013:45.510:41:21.5Pdiff
Miami, Florida 106.6614:09.710:41:45.7Pdiff
San Juan, Puerto Rico 119.1715:05.310:42:41.3Pdiff
Lima, Peru 138.3816:30.510:44:06.5Pdiff
Palmer Station, Antarctica 146.7819:35.910:47:11.9PKPdf

Travel Time Information and Calculator

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