Theoretical P-Wave Travel Times

Wednesday, April 11, 2012 at 10:43:09 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
Kathmandu, Nepal 27.63 5:46.710:48:55.7P
Beijing, China 44.67 8:11.710:51:20.7P
Agana, Guam 53.28 9:17.810:52:26.8P
Nairobi, Kenya 55.65 9:35.110:52:44.1P
Tokyo, Japan 55.95 9:37.210:52:46.2P
Brisbane, Australia 64.5010:35.810:53:44.8P
Moscow, Russia 70.2911:12.510:54:21.5P
Rome, Italy 82.0012:19.210:55:28.2P
Wellington, New Zealand 84.7312:33.210:55:42.2P
Bergen, Norway 87.9112:48.810:55:57.8P
London, England 91.0413:03.410:56:12.4P
Anchorage, Alaska 102.2913:54.210:57:03.2Pdiff
Honolulu, Hawaii 108.0414:19.710:57:28.7Pdiff
Palmer Station, Antarctica 111.1814:33.610:57:42.6Pdiff
Seattle, Washington 122.9615:25.910:58:34.9Pdiff
San Francisco, California 129.9415:56.910:59:05.9Pdiff
Bangor, Maine 131.6616:04.510:59:13.5Pdiff
Duluth, Minnesota 132.5116:08.310:59:17.3Pdiff
Ottawa, Canada 132.8416:09.810:59:18.8Pdiff
Boston, Massachusetts 134.6016:17.610:59:26.6Pdiff
Los Angeles, California 134.9516:19.210:59:28.2Pdiff
Golden, Colorado 136.5616:26.310:59:35.3Pdiff
New York, New York 136.9116:27.910:59:36.9Pdiff
Philadelphia, Pennsylvania 137.9216:32.410:59:41.4Pdiff
Phoenix, Arizona 138.8816:36.610:59:45.6Pdiff
Washington, D.C. 139.3716:38.810:59:47.8Pdiff
Albuquerque, New Mexico 140.1216:42.110:59:51.1Pdiff
Wichita, Kansas 140.6116:44.310:59:53.3Pdiff
St. Louis, Missouri 140.6816:44.610:59:53.6Pdiff
Knoxville, Tennessee 143.4116:56.711:00:05.7Pdiff
San Juan, Puerto Rico 151.5519:47.711:02:56.7PKPdf
Brownsville, Texas 151.8019:48.111:02:57.1PKPdf
Miami, Florida 152.6819:49.511:02:58.5PKPdf
Mexico City, Mexico 156.9319:55.611:03:04.6PKPdf
Lima, Peru 164.6620:04.411:03:13.4PKPdf

Travel Time Information and Calculator

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