Theoretical P-Wave Travel Times

Magnitude 4.8 SOUTHEAST OF SHIKOKU, JAPAN
Friday, January 25, 2013 at 20:25:04 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 8.94 2:09.217:48:27.2Pn
Beijing, China 16.67 3:53.717:50:11.7Pn
Agana, Guam 19.65 4:28.917:50:46.9P
Kathmandu, Nepal 41.01 7:43.117:54:01.1P
Anchorage, Alaska 58.96 9:59.617:56:17.6P
Brisbane, Australia 59.9510:06.417:56:24.4P
Honolulu, Hawaii 62.9310:26.517:56:44.5P
Moscow, Russia 68.6711:03.617:57:21.6P
Seattle, Washington 78.2712:00.217:58:18.2P
Wellington, New Zealand 80.5812:12.817:58:30.8P
Bergen, Norway 80.6012:12.817:58:30.8P
San Francisco, California 83.4412:27.817:58:45.8P
Los Angeles, California 88.3212:51.817:59:09.8P
London, England 89.2412:56.217:59:14.2P
Rome, Italy 89.9112:59.317:59:17.3P
Phoenix, Arizona 92.8113:12.717:59:30.8P
Golden, Colorado 92.9713:13.517:59:31.5P
Duluth, Minnesota 94.2913:19.517:59:37.5P
Albuquerque, New Mexico 95.2413:23.817:59:41.8P
Nairobi, Kenya 95.3113:24.117:59:42.1P
Wichita, Kansas 98.7113:39.417:59:57.4Pdiff
Ottawa, Canada 101.3513:51.118:00:09.1Pdiff
St. Louis, Missouri 101.5713:52.118:00:10.1Pdiff
Bangor, Maine 103.7514:01.818:00:19.8Pdiff
Boston, Massachusetts 105.4914:09.518:00:27.5Pdiff
Knoxville, Tennessee 106.1214:12.318:00:30.3Pdiff
New York, New York 106.1614:12.518:00:30.5Pdiff
Philadelphia, Pennsylvania 106.4914:13.918:00:31.9Pdiff
Washington, D.C. 106.8114:15.418:00:33.4Pdiff
Brownsville, Texas 107.2514:17.318:00:35.3Pdiff
Mexico City, Mexico 110.6814:32.518:00:50.5Pdiff
Miami, Florida 116.9815:00.518:01:18.5Pdiff
San Juan, Puerto Rico 129.2415:54.918:02:12.9Pdiff
Palmer Station, Antarctica 140.3716:44.318:03:02.3Pdiff
Lima, Peru 147.8319:42.818:06:00.8PKPdf

Travel Time Information and Calculator

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