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Earthquake Hazards Program

Magnitude 4.3 NEAR THE SOUTH COAST OF HONSHU, JAPAN

Friday, August 22, 2008 at 00:25:47 UTC

Theoretical P-Wave Travel Times

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 0.79 0:15.3 0:26:02.3Pg
Beijing, China 19.33 4:25.7 0:30:12.7P
Agana, Guam 21.76 4:52.0 0:30:39.0P
Kathmandu, Nepal 46.76 8:29.6 0:34:16.6P
Anchorage, Alaska 50.70 8:59.9 0:34:46.9P
Honolulu, Hawaii 55.73 9:37.0 0:35:24.0P
Brisbane, Australia 63.2610:29.0 0:36:16.0P
Moscow, Russia 68.2311:01.1 0:36:48.1P
Seattle, Washington 69.7611:10.6 0:36:57.6P
San Francisco, California 74.8811:41.3 0:37:28.3P
Bergen, Norway 78.0411:59.2 0:37:46.2P
Los Angeles, California 79.7612:08.6 0:37:55.6P
Wellington, New Zealand 82.2712:22.0 0:38:09.0P
Phoenix, Arizona 84.2512:32.1 0:38:19.1P
Golden, Colorado 84.4712:33.3 0:38:20.3P
Duluth, Minnesota 86.2012:41.9 0:38:28.9P
Albuquerque, New Mexico 86.6812:44.3 0:38:31.3P
London, England 87.1412:46.5 0:38:33.5P
Rome, Italy 89.7012:58.6 0:38:45.6P
Wichita, Kansas 90.2813:01.3 0:38:48.3P
St. Louis, Missouri 93.3113:15.3 0:39:02.3P
Ottawa, Canada 93.8013:17.6 0:39:04.6P
Bangor, Maine 96.5213:29.9 0:39:16.9P
Knoxville, Tennessee 97.9313:36.2 0:39:23.2P
Boston, Massachusetts 98.0713:36.8 0:39:23.8P
New York, New York 98.5413:38.9 0:39:25.9Pdiff
Brownsville, Texas 98.6813:39.6 0:39:26.6Pdiff
Philadephia, Pennsylvania 98.7913:40.0 0:39:27.0Pdiff
Washington, D.C. 99.0013:41.0 0:39:28.0Pdiff
Nairobi, Kenya 101.5013:52.1 0:39:39.1Pdiff
Mexico City, Mexico 102.1213:54.9 0:39:41.9Pdiff
Miami, Florida 108.7014:24.0 0:40:11.0Pdiff
San Juan, Puerto Rico 121.4215:20.5 0:41:07.5Pdiff
Lima, Peru 139.5216:40.9 0:42:27.9Pdiff
Palmer Station, Antarctica 144.3217:02.1 0:42:49.1Pdiff

Travel Time Information and Calculator

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


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