Theoretical P-Wave Travel Times

Thursday, January 13, 2011 at 16:16:41 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
Brisbane, Australia 15.77 3:42.516:20:23.5Pn
Wellington, New Zealand 21.30 4:47.116:21:28.1P
Agana, Guam 41.14 7:44.616:24:25.6P
Honolulu, Hawaii 53.04 9:17.516:25:58.5P
Tokyo, Japan 62.2510:22.416:27:03.4P
Beijing, China 77.3411:55.416:28:36.4P
Palmer Station, Antarctica 83.8712:30.416:29:11.4P
San Francisco, California 86.9912:45.916:29:26.9P
Anchorage, Alaska 88.0812:51.116:29:32.1P
Los Angeles, California 88.2812:52.116:29:33.1P
Seattle, Washington 91.9013:08.916:29:49.9P
Phoenix, Arizona 92.7113:12.716:29:53.7P
Kathmandu, Nepal 93.6513:17.016:29:58.0P
Albuquerque, New Mexico 97.5013:34.516:30:15.5P
Mexico City, Mexico 98.6713:39.616:30:20.6Pdiff
Golden, Colorado 100.1013:46.016:30:27.0Pdiff
Brownsville, Texas 102.1213:55.016:30:36.0Pdiff
Wichita, Kansas 105.4514:09.816:30:50.8Pdiff
Lima, Peru 107.8014:20.216:31:01.2Pdiff
Duluth, Minnesota 110.9614:34.216:31:15.2Pdiff
St. Louis, Missouri 111.1014:34.816:31:15.8Pdiff
Knoxville, Tennessee 114.6714:50.716:31:31.7Pdiff
Miami, Florida 117.2315:02.016:31:43.0Pdiff
Washington, D.C. 121.3815:20.516:32:01.5Pdiff
Ottawa, Canada 122.3215:24.616:32:05.6Pdiff
Philadelphia, Pennsylvania 122.8615:27.016:32:08.0Pdiff
New York, New York 123.7415:30.916:32:11.9Pdiff
Boston, Massachusetts 125.8615:40.316:32:21.3Pdiff
Bangor, Maine 127.2815:46.616:32:27.6Pdiff
Nairobi, Kenya 127.9915:49.816:32:30.8Pdiff
San Juan, Puerto Rico 128.6215:52.616:32:33.6Pdiff
Moscow, Russia 129.4115:56.116:32:37.1Pdiff
Bergen, Norway 138.5016:36.516:33:17.5Pdiff
London, England 147.9119:43.416:36:24.4PKPdf
Rome, Italy 150.6819:47.916:36:28.9PKPdf

Travel Time Information and Calculator

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