Theoretical P-Wave Travel Times

Magnitude 4.6 RYUKYU ISLANDS, JAPAN
Wednesday, February 20, 2013 at 21:23:08 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 14.66 3:24.817:48:01.8Pn
Beijing, China 17.57 4:02.117:48:39.1Pn
Agana, Guam 19.71 4:26.417:49:03.4P
Kathmandu, Nepal 38.04 7:14.917:51:51.9P
Brisbane, Australia 57.68 9:46.917:54:23.9P
Anchorage, Alaska 64.6010:33.917:55:10.9P
Honolulu, Hawaii 67.6010:53.117:55:30.1P
Moscow, Russia 69.6811:06.217:55:43.2P
Wellington, New Zealand 79.1212:01.117:56:38.1P
Bergen, Norway 82.8412:20.817:56:57.8P
Seattle, Washington 83.9912:26.717:57:03.7P
San Francisco, California 89.1312:51.817:57:28.8P
Rome, Italy 90.5012:58.217:57:35.2P
London, England 91.1013:01.017:57:38.0P
Nairobi, Kenya 91.4613:02.717:57:39.7P
Los Angeles, California 93.9813:14.317:57:51.3P
Phoenix, Arizona 98.5113:34.717:58:11.7Pdiff
Golden, Colorado 98.6813:35.417:58:12.4Pdiff
Duluth, Minnesota 99.8213:40.517:58:17.5Pdiff
Albuquerque, New Mexico 100.9613:45.517:58:22.5Pdiff
Wichita, Kansas 104.4014:00.817:58:37.8Pdiff
Ottawa, Canada 106.5714:10.517:58:47.5Pdiff
St. Louis, Missouri 107.1814:13.217:58:50.2Pdiff
Bangor, Maine 108.7614:20.217:58:57.2Pdiff
Boston, Massachusetts 110.6214:28.417:59:05.4Pdiff
New York, New York 111.4014:31.917:59:08.9Pdiff
Knoxville, Tennessee 111.7014:33.217:59:10.2Pdiff
Philadelphia, Pennsylvania 111.7814:33.617:59:10.6Pdiff
Washington, D.C. 112.1714:35.317:59:12.3Pdiff
Brownsville, Texas 112.9614:38.817:59:15.8Pdiff
Mexico City, Mexico 116.3314:53.817:59:30.8Pdiff
Miami, Florida 122.6015:21.617:59:58.6Pdiff
San Juan, Puerto Rico 134.5516:14.718:00:51.7Pdiff
Palmer Station, Antarctica 136.7416:24.418:01:01.4Pdiff
Lima, Peru 153.1319:47.418:04:24.4PKPdf

Travel Time Information and Calculator

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