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Earthquake Hazards Program


Sunday, September 30, 2007 at 05:23:34 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
Wellington, New Zealand 11.17 2:38.7 5:26:14.7Pn
Brisbane, Australia 23.40 5:07.8 5:28:43.8P
Palmer Station, Antarctica 57.77 9:49.8 5:33:25.8P
Agana, Guam 64.8110:37.5 5:34:13.5P
Honolulu, Hawaii 78.2011:58.3 5:35:34.3P
Tokyo, Japan 87.3412:45.6 5:36:21.6P
Beijing, China 98.2513:35.8 5:37:11.8P
Lima, Peru 98.8213:38.4 5:37:14.4Pdiff
Kathmandu, Nepal 103.5713:59.4 5:37:35.4Pdiff
Los Angeles, California 107.9514:18.9 5:37:54.9Pdiff
San Francisco, California 108.4614:21.2 5:37:57.2Pdiff
Mexico City, Mexico 108.9814:23.4 5:37:59.4Pdiff
Phoenix, Arizona 111.0314:32.6 5:38:08.6Pdiff
Nairobi, Kenya 112.1114:37.4 5:38:13.4Pdiff
Brownsville, Texas 114.6714:48.7 5:38:24.7Pdiff
Albuquerque, New Mexico 115.3814:51.9 5:38:27.9Pdiff
Seattle, Washington 115.8714:54.1 5:38:30.1Pdiff
Anchorage, Alaska 116.3414:56.1 5:38:32.1Pdiff
Golden, Colorado 119.3715:09.6 5:38:45.6Pdiff
Wichita, Kansas 122.7615:24.6 5:39:00.6Pdiff
Miami, Florida 125.8215:38.2 5:39:14.2Pdiff
St. Louis, Missouri 127.6715:46.4 5:39:22.4Pdiff
Knoxville, Tennessee 129.2215:53.3 5:39:29.3Pdiff
San Juan, Puerto Rico 129.6015:55.0 5:39:31.0Pdiff
Duluth, Minnesota 131.1616:01.9 5:39:37.9Pdiff
Washington, D.C. 136.1816:24.2 5:40:00.2Pdiff
Philadephia, Pennsylvania 137.9716:32.1 5:40:08.1Pdiff
New York, New York 139.1316:37.3 5:40:13.3Pdiff
Ottawa, Canada 140.4016:42.9 5:40:18.9Pdiff
Boston, Massachusetts 141.8416:49.3 5:40:25.3Pdiff
Bangor, Maine 144.4917:01.1 5:40:37.1Pdiff
Moscow, Russia 147.3819:39.3 5:43:15.3PKPdf
Rome, Italy 158.6919:55.6 5:43:31.6PKPdf
Bergen, Norway 163.5420:00.9 5:43:36.9PKPdf
London, England 169.5820:05.6 5:43:41.6PKPdf

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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