Theoretical P-Wave Travel Times

Magnitude 4.7 SOUTHWESTERN RYUKYU ISLANDS, JAPAN
Friday, April 19, 2013 at 18:35:39 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
Beijing, China 16.05 3:45.721:17:31.7Pn
Tokyo, Japan 17.87 4:08.621:17:54.6Pn
Agana, Guam 23.26 5:07.721:18:53.7P
Kathmandu, Nepal 34.00 6:43.821:20:29.8P
Brisbane, Australia 59.4610:02.921:23:48.9P
Anchorage, Alaska 67.0610:53.421:24:39.4P
Moscow, Russia 67.3410:55.221:24:41.2P
Honolulu, Hawaii 71.7511:22.421:25:08.4P
Bergen, Norway 81.2612:16.321:26:02.3P
Wellington, New Zealand 81.3412:16.721:26:02.7P
Seattle, Washington 86.8512:44.721:26:30.7P
Nairobi, Kenya 87.2312:46.621:26:32.6P
Rome, Italy 87.8012:49.321:26:35.3P
London, England 89.1912:55.921:26:41.9P
San Francisco, California 92.4113:10.821:26:56.8P
Los Angeles, California 97.3313:33.221:27:19.2P
Golden, Colorado 101.4613:51.521:27:37.5Pdiff
Phoenix, Arizona 101.7313:52.721:27:38.7Pdiff
Duluth, Minnesota 101.8813:53.421:27:39.4Pdiff
Albuquerque, New Mexico 103.9614:02.721:27:48.6Pdiff
Wichita, Kansas 106.9914:16.121:28:02.1Pdiff
Ottawa, Canada 107.9714:20.421:28:06.4Pdiff
St. Louis, Missouri 109.4614:27.121:28:13.1Pdiff
Bangor, Maine 109.8214:28.621:28:14.6Pdiff
Boston, Massachusetts 111.8514:37.721:28:23.7Pdiff
New York, New York 112.8314:42.021:28:28.0Pdiff
Philadelphia, Pennsylvania 113.2914:44.021:28:30.0Pdiff
Washington, D.C. 113.8114:46.321:28:32.3Pdiff
Knoxville, Tennessee 113.8414:46.521:28:32.5Pdiff
Brownsville, Texas 116.0214:56.221:28:42.2Pdiff
Mexico City, Mexico 119.6915:12.521:28:58.5Pdiff
Miami, Florida 124.8315:35.321:29:21.3Pdiff
San Juan, Puerto Rico 135.9716:24.721:30:10.7Pdiff
Palmer Station, Antarctica 136.8516:28.621:30:14.6Pdiff
Lima, Peru 157.0219:56.821:33:42.8PKPdf

Travel Time Information and Calculator

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