Theoretical P-Wave Travel Times

Wednesday, March 20, 2013 at 16:22:39 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
Travel Time
Arrival Time
Agana, Guam 19.38 4:22.710:48:56.7P
Tokyo, Japan 30.65 6:10.910:50:44.9P
Beijing, China 33.26 6:33.810:51:07.8P
Kathmandu, Nepal 43.28 7:57.910:52:31.9P
Brisbane, Australia 43.64 8:00.910:52:34.9P
Wellington, New Zealand 66.1010:43.410:55:17.4P
Honolulu, Hawaii 74.4811:34.710:56:08.7P
Anchorage, Alaska 80.5612:08.710:56:42.7P
Moscow, Russia 82.7712:20.310:56:54.3P
Nairobi, Kenya 89.2812:52.410:57:26.4P
Bergen, Norway 97.8413:31.510:58:05.5P
Seattle, Washington 98.6513:35.110:58:09.1Pdiff
Rome, Italy 101.9413:49.710:58:23.7Pdiff
San Francisco, California 102.0913:50.410:58:24.4Pdiff
London, England 105.2114:04.310:58:38.3Pdiff
Los Angeles, California 106.5614:10.310:58:44.3Pdiff
Phoenix, Arizona 111.5214:32.310:59:06.3Pdiff
Golden, Colorado 113.3114:40.210:59:14.2Pdiff
Albuquerque, New Mexico 114.7614:46.610:59:20.6Pdiff
Duluth, Minnesota 116.1514:52.810:59:26.8Pdiff
Wichita, Kansas 119.4515:07.510:59:41.5Pdiff
Palmer Station, Antarctica 119.5615:07.910:59:41.9Pdiff
St. Louis, Missouri 122.9815:23.110:59:57.1Pdiff
Ottawa, Canada 123.7415:26.511:00:00.5Pdiff
Bangor, Maine 126.1715:37.311:00:11.3Pdiff
Brownsville, Texas 126.2415:37.611:00:11.6Pdiff
Knoxville, Tennessee 127.7215:44.211:00:18.2Pdiff
Boston, Massachusetts 127.9215:45.011:00:19.0Pdiff
Mexico City, Mexico 128.0815:45.811:00:19.8Pdiff
New York, New York 128.5215:47.711:00:21.7Pdiff
Philadelphia, Pennsylvania 128.8115:49.011:00:23.0Pdiff
Washington, D.C. 129.0415:50.011:00:24.0Pdiff
Miami, Florida 138.2116:30.811:01:04.8Pdiff
San Juan, Puerto Rico 151.4619:44.611:04:18.6PKPdf
Lima, Peru 156.9219:52.611:04:26.6PKPdf

Travel Time Information and Calculator

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