Theoretical P-Wave Travel Times

Magnitude 5.2 RYUKYU ISLANDS, 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 12.86 2:59.921:00:34.9Pn
Beijing, China 16.09 3:42.321:01:17.3Pn
Agana, Guam 20.54 4:33.521:02:08.5P
Kathmandu, Nepal 38.06 7:12.721:04:47.7P
Brisbane, Australia 59.32 9:55.821:07:30.8P
Anchorage, Alaska 62.6210:18.221:07:53.2P
Honolulu, Hawaii 66.6810:44.721:08:19.7P
Moscow, Russia 68.3310:55.121:08:30.1P
Wellington, New Zealand 80.5712:06.221:09:41.2P
Bergen, Norway 81.1712:09.421:09:44.4P
Seattle, Washington 82.1212:14.421:09:49.4P
San Francisco, California 87.4212:41.021:10:16.0P
Rome, Italy 89.2912:49.821:10:24.8P
London, England 89.5312:50.921:10:25.9P
Nairobi, Kenya 91.9413:02.121:10:37.1P
Los Angeles, California 92.3113:03.821:10:38.8P
Phoenix, Arizona 96.7813:24.121:10:59.1P
Golden, Colorado 96.7913:24.221:10:59.2P
Duluth, Minnesota 97.7813:28.621:11:03.6P
Albuquerque, New Mexico 99.1413:34.721:11:09.7Pdiff
Wichita, Kansas 102.4613:49.421:11:24.4Pdiff
Ottawa, Canada 104.4813:58.421:11:33.4Pdiff
St. Louis, Missouri 105.1814:01.521:11:36.5Pdiff
Bangor, Maine 106.6614:08.021:11:43.0Pdiff
Boston, Massachusetts 108.5214:16.321:11:51.3Pdiff
New York, New York 109.3114:19.821:11:54.8Pdiff
Knoxville, Tennessee 109.6814:21.421:11:56.4Pdiff
Philadelphia, Pennsylvania 109.6914:21.521:11:56.5Pdiff
Washington, D.C. 110.0914:23.321:11:58.3Pdiff
Brownsville, Texas 111.1714:28.121:12:03.1Pdiff
Mexico City, Mexico 114.6714:43.621:12:18.6Pdiff
Miami, Florida 120.5915:09.921:12:44.9Pdiff
San Juan, Puerto Rico 132.4616:02.621:13:37.6Pdiff
Palmer Station, Antarctica 138.7216:30.421:14:05.4Pdiff
Lima, Peru 151.8319:42.421:17:17.4PKPdf

Travel Time Information and Calculator

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