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Earthquake Hazards Program


Monday, May 12, 2008 at 06:28:01 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
Beijing, China 13.87 3:16.6 6:31:16.6Pn
Kathmandu, Nepal 16.01 3:45.2 6:31:45.2Pn
Tokyo, Japan 30.69 6:14.9 6:34:14.9P
Agana, Guam 41.91 7:50.5 6:35:50.5P
Moscow, Russia 51.37 9:04.7 6:37:04.7P
Bergen, Norway 67.2410:54.6 6:38:54.6P
Rome, Italy 70.5511:15.2 6:39:15.2P
Nairobi, Kenya 70.6411:15.7 6:39:15.7P
Anchorage, Alaska 70.7811:16.6 6:39:16.6P
London, England 73.9611:35.6 6:39:35.6P
Brisbane, Australia 75.1211:42.3 6:39:42.3P
Honolulu, Hawaii 86.4512:42.8 6:40:42.8P
Seattle, Washington 91.4613:06.5 6:41:06.5P
Wellington, New Zealand 97.6113:34.5 6:41:34.5P
San Francisco, California 99.3113:42.0 6:41:42.0Pdiff
Duluth, Minnesota 101.3013:50.8 6:41:50.8Pdiff
Ottawa, Canada 103.8714:02.3 6:42:02.3Pdiff
Bangor, Maine 104.1414:03.5 6:42:03.5Pdiff
Los Angeles, California 104.3114:04.2 6:42:04.2Pdiff
Golden, Colorado 104.7414:06.1 6:42:06.1Pdiff
Boston, Massachusetts 106.7714:15.2 6:42:15.2Pdiff
Phoenix, Arizona 107.6714:19.1 6:42:19.1Pdiff
Albuquerque, New Mexico 108.4314:22.5 6:42:22.5Pdiff
New York, New York 108.5314:23.0 6:42:23.0Pdiff
Wichita, Kansas 108.8614:24.4 6:42:24.4Pdiff
Philadephia, Pennsylvania 109.3214:26.5 6:42:26.5Pdiff
St. Louis, Missouri 109.4914:27.2 6:42:27.2Pdiff
Washington, D.C. 110.3914:31.2 6:42:31.2Pdiff
Knoxville, Tennessee 112.8614:42.2 6:42:42.2Pdiff
Brownsville, Texas 119.9715:13.7 6:43:13.7Pdiff
Miami, Florida 123.3915:28.9 6:43:28.9Pdiff
Mexico City, Mexico 125.3715:37.7 6:43:37.7Pdiff
San Juan, Puerto Rico 129.6915:56.9 6:43:56.9Pdiff
Palmer Station, Antarctica 142.5116:53.8 6:44:53.8Pdiff
Lima, Peru 161.1119:59.9 6:47:59.9PKPdf

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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