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Earthquake Hazards Program

Magnitude 4.1 OFFSHORE EL SALVADOR

Thursday, July 26, 2007 at 21:05:06 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
Mexico City, Mexico 11.67 2:44.021:07:50.0Pn
Brownsville, Texas 15.12 3:31.021:08:37.0Pn
Miami, Florida 15.16 3:31.521:08:37.5Pn
San Juan, Puerto Rico 22.66 4:58.021:10:04.0P
Knoxville, Tennessee 23.11 5:02.821:10:08.8P
St. Louis, Missouri 25.59 5:25.821:10:31.8P
Wichita, Kansas 25.76 5:27.321:10:33.4P
Albuquerque, New Mexico 27.17 5:40.021:10:46.0P
Lima, Peru 27.60 5:43.921:10:49.9P
Washington, D.C. 27.88 5:46.421:10:52.4P
Phoenix, Arizona 29.27 5:58.821:11:04.8P
Philadephia, Pennsylvania 29.48 6:00.621:11:06.6P
Golden, Colorado 30.24 6:07.321:11:13.3P
New York, New York 30.57 6:10.321:11:16.3P
Boston, Massachusetts 33.10 6:32.521:11:38.5P
Duluth, Minnesota 33.75 6:38.121:11:44.1P
Los Angeles, California 33.83 6:38.821:11:44.8P
Ottawa, Canada 34.22 6:42.221:11:48.2P
Bangor, Maine 36.09 6:58.221:12:04.2P
San Francisco, California 38.65 7:19.921:12:25.9P
Seattle, Washington 44.42 8:07.221:13:13.2P
Anchorage, Alaska 64.8510:35.421:15:41.4P
Honolulu, Hawaii 65.8710:42.021:15:48.0P
London, England 79.2312:01.521:17:07.5P
Bergen, Norway 80.9412:10.821:17:16.8P
Palmer Station, Antarctica 82.5512:19.321:17:25.3P
Rome, Italy 89.7912:54.821:18:00.8P
Moscow, Russia 98.3413:33.821:18:39.8Pdiff
Wellington, New Zealand 103.0913:54.921:19:00.9Pdiff
Tokyo, Japan 113.1914:39.721:19:45.7Pdiff
Agana, Guam 120.6115:12.721:20:18.7Pdiff
Brisbane, Australia 120.6115:12.721:20:18.7Pdiff
Beijing, China 122.3015:20.121:20:26.1Pdiff
Nairobi, Kenya 125.1215:32.721:20:38.7Pdiff
Kathmandu, Nepal 139.1716:35.121:21:41.1Pdiff

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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