Theoretical P-Wave Travel Times

Magnitude 4.5 OFF 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 2.41 0:36.918:23:16.0Pn
Beijing, China 20.83 4:38.318:27:17.3P
Agana, Guam 22.94 5:00.818:27:39.8P
Anchorage, Alaska 48.20 8:36.718:31:15.7P
Kathmandu, Nepal 48.70 8:40.518:31:19.5P
Honolulu, Hawaii 53.54 9:16.818:31:55.8P
Brisbane, Australia 64.3210:31.818:33:10.8P
Seattle, Washington 67.1610:50.118:33:29.1P
Moscow, Russia 68.2610:57.018:33:36.0P
San Francisco, California 72.2611:21.518:34:00.5P
Los Angeles, California 77.1411:49.818:34:28.8P
Bergen, Norway 77.3711:51.018:34:30.0P
Phoenix, Arizona 81.6212:14.218:34:53.2P
Golden, Colorado 81.8812:15.518:34:54.5P
Wellington, New Zealand 82.7612:20.118:34:59.1P
Duluth, Minnesota 83.7512:25.218:35:04.2P
Albuquerque, New Mexico 84.0712:26.818:35:05.8P
London, England 86.5612:39.318:35:18.3P
Wichita, Kansas 87.7112:44.818:35:23.8P
Rome, Italy 89.7012:54.218:35:33.2P
St. Louis, Missouri 90.7912:59.218:35:38.2P
Ottawa, Canada 91.5113:02.618:35:41.6P
Bangor, Maine 94.3313:15.518:35:54.5P
Knoxville, Tennessee 95.4313:20.518:35:59.5P
Boston, Massachusetts 95.8213:22.318:36:01.3P
Brownsville, Texas 96.0713:23.418:36:02.4P
New York, New York 96.2213:24.118:36:03.1P
Philadelphia, Pennsylvania 96.4513:25.118:36:04.1P
Washington, D.C. 96.6213:25.918:36:04.9P
Mexico City, Mexico 99.5013:38.718:36:17.7Pdiff
Nairobi, Kenya 103.4113:56.118:36:35.1Pdiff
Miami, Florida 106.1714:08.318:36:47.4Pdiff
San Juan, Puerto Rico 119.0315:05.418:37:44.4Pdiff
Lima, Peru 136.9516:25.018:39:04.0Pdiff
Palmer Station, Antarctica 145.1819:32.318:42:11.3PKPbc

Travel Time Information and Calculator

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