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Earthquake Hazards Program

Magnitude 5.2 CENTRAL ITALY

Thursday, April 09, 2009 at 19:38:18 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
(degrees)
Travel Time
(min:secs)
Arrival Time
UTC
Phase
Rome, Italy 0.87 0:16.819:38:34.8Pg
London, England 12.83 3:02.419:41:20.4Pn
Bergen, Norway 18.54 4:16.719:42:34.7P
Moscow, Russia 20.60 4:39.219:42:57.2P
Nairobi, Kenya 48.49 8:42.819:47:00.8P
Bangor, Maine 56.95 9:45.319:48:03.3P
Kathmandu, Nepal 59.0910:00.419:48:18.4P
Boston, Massachusetts 59.6410:04.219:48:22.2P
Ottawa, Canada 60.8710:12.619:48:30.6P
New York, New York 62.3610:22.719:48:40.7P
Philadelphia, Pennsylvania 63.5210:30.519:48:48.5P
Washington, D.C. 65.3210:42.219:49:00.2P
Duluth, Minnesota 69.3211:07.619:49:25.6P
San Juan, Puerto Rico 70.0711:12.319:49:30.2P
Knoxville, Tennessee 72.2311:25.319:49:43.3P
Beijing, China 72.4811:26.819:49:44.8P
St. Louis, Missouri 73.5411:33.119:49:51.1P
Miami, Florida 75.4911:44.419:50:02.4P
Anchorage, Alaska 75.7311:45.819:50:03.8P
Wichita, Kansas 78.2211:59.919:50:17.9P
Golden, Colorado 80.9812:14.819:50:32.8P
Seattle, Washington 81.9012:19.719:50:37.7P
Albuquerque, New Mexico 85.2612:36.919:50:54.9P
Brownsville, Texas 86.7912:44.519:51:02.5P
Tokyo, Japan 88.1012:50.819:51:08.8P
Phoenix, Arizona 89.3412:56.619:51:14.6P
San Francisco, California 90.5013:02.019:51:20.0P
Los Angeles, California 91.8313:08.219:51:26.2P
Mexico City, Mexico 92.5313:11.419:51:29.4P
Lima, Peru 98.3213:37.619:51:55.6P
Agana, Guam 108.6914:23.619:52:41.6Pdiff
Honolulu, Hawaii 115.9714:56.019:53:14.0Pdiff
Palmer Station, Antarctica 124.1315:32.219:53:50.2Pdiff
Brisbane, Australia 144.1117:00.919:55:18.9Pdiff
Wellington, New Zealand 166.1520:06.819:58:24.9PKPdf

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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