Theoretical P-Wave Travel Times

Thursday, January 31, 2013 at 21:20:32 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 15.00 3:30.120:34:31.1Pn
Beijing, China 32.78 6:30.720:37:31.7P
Tokyo, Japan 46.97 8:28.420:39:29.4P
Agana, Guam 50.30 8:54.020:39:55.0P
Nairobi, Kenya 57.58 9:47.220:40:48.2P
Moscow, Russia 58.90 9:56.520:40:57.5P
Brisbane, Australia 71.6211:19.020:42:20.0P
Rome, Italy 73.4211:29.720:42:30.7P
Bergen, Norway 76.4211:47.020:42:48.0P
London, England 80.7612:11.020:43:12.0P
Anchorage, Alaska 89.9412:56.720:43:57.7P
Wellington, New Zealand 93.4113:12.720:44:13.7P
Honolulu, Hawaii 102.1113:51.720:44:52.7Pdiff
Seattle, Washington 110.6114:29.520:45:30.5Pdiff
San Francisco, California 118.4715:04.320:46:05.3Pdiff
Bangor, Maine 118.7915:05.820:46:06.8Pdiff
Duluth, Minnesota 119.0015:06.720:46:07.7Pdiff
Ottawa, Canada 119.6115:09.420:46:10.4Pdiff
Boston, Massachusetts 121.6815:18.620:46:19.6Pdiff
Los Angeles, California 123.4815:26.620:46:27.6Pdiff
Golden, Colorado 123.6015:27.120:46:28.1Pdiff
New York, New York 123.8615:28.320:46:29.3Pdiff
Palmer Station, Antarctica 124.5615:31.320:46:32.3Pdiff
Philadelphia, Pennsylvania 124.8315:32.520:46:33.5Pdiff
Washington, D.C. 126.1815:38.620:46:39.6Pdiff
Phoenix, Arizona 126.8415:41.520:46:42.5Pdiff
St. Louis, Missouri 127.1715:43.020:46:44.0Pdiff
Wichita, Kansas 127.2715:43.420:46:44.4Pdiff
Albuquerque, New Mexico 127.4615:44.320:46:45.3Pdiff
Knoxville, Tennessee 129.9315:55.220:46:56.2Pdiff
Brownsville, Texas 138.7316:34.320:47:35.3Pdiff
Miami, Florida 139.5416:37.920:47:38.9Pdiff
San Juan, Puerto Rico 141.3416:45.920:47:46.9Pdiff
Mexico City, Mexico 144.4116:59.520:48:00.5Pdiff
Lima, Peru 169.9120:06.820:51:07.8PKPdf

Travel Time Information and Calculator

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