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Thursday, March 20, 2008 at 22:33:01 UTC

Theoretical P-Wave Travel Times

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 8.39 1:59.122:35:00.1Pn
Beijing, China 27.99 5:47.222:38:48.2P
Moscow, Russia 35.92 6:56.622:39:57.6P
Tokyo, Japan 46.86 8:26.222:41:27.2P
Rome, Italy 52.89 9:12.122:42:13.1P
Bergen, Norway 53.24 9:14.722:42:15.7P
Nairobi, Kenya 55.32 9:29.822:42:30.8P
London, England 58.31 9:51.022:42:52.0P
Agana, Guam 60.6710:07.322:43:08.3P
Anchorage, Alaska 75.0711:38.022:44:39.0P
Brisbane, Australia 92.0613:05.122:46:06.1P
Seattle, Washington 94.4913:16.222:46:17.2P
Bangor, Maine 95.7013:21.722:46:22.7P
Ottawa, Canada 96.9213:27.222:46:28.2P
Duluth, Minnesota 98.0113:32.122:46:33.1P
Boston, Massachusetts 98.6313:34.922:46:35.9Pdiff
Honolulu, Hawaii 100.4413:42.922:46:43.9Pdiff
New York, New York 100.9413:45.122:46:46.1Pdiff
Philadephia, Pennsylvania 101.9513:49.622:46:50.6Pdiff
Washington, D.C. 103.4213:56.122:46:57.1Pdiff
San Francisco, California 103.9113:58.322:46:59.3Pdiff
Golden, Colorado 104.9614:03.022:47:04.0Pdiff
St. Louis, Missouri 105.8914:07.122:47:08.1Pdiff
Wichita, Kansas 107.1814:12.822:47:13.8Pdiff
Knoxville, Tennessee 107.9114:16.022:47:17.0Pdiff
Los Angeles, California 108.5014:18.622:47:19.6Pdiff
Albuquerque, New Mexico 109.4714:23.022:47:24.0Pdiff
Phoenix, Arizona 110.3514:26.922:47:27.9Pdiff
Wellington, New Zealand 114.5614:45.522:47:46.5Pdiff
Miami, Florida 116.7114:55.122:47:56.1Pdiff
San Juan, Puerto Rico 118.1815:01.622:48:02.6Pdiff
Brownsville, Texas 119.0115:05.322:48:06.3Pdiff
Mexico City, Mexico 125.4715:34.022:48:35.0Pdiff
Palmer Station, Antarctica 142.1416:48.022:49:49.0Pdiff
Lima, Peru 149.6719:40.222:52:41.2PKPdf

Travel Time Information and Calculator

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

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