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Earthquake Hazards Program

Magnitude 4.6 OFFSHORE EL SALVADOR

Thursday, July 19, 2007 at 11:40:37 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 12.59 2:56.111:43:34.1Pn
Miami, Florida 15.21 3:30.711:44:08.7Pn
Brownsville, Texas 15.95 3:40.211:44:18.2Pn
San Juan, Puerto Rico 22.07 4:49.311:45:27.3P
Knoxville, Tennessee 23.51 5:03.811:45:41.8P
St. Louis, Missouri 26.12 5:27.611:46:05.6P
Wichita, Kansas 26.45 5:30.611:46:08.6P
Lima, Peru 26.82 5:33.911:46:11.9P
Albuquerque, New Mexico 28.00 5:44.511:46:22.5P
Washington, D.C. 28.09 5:45.311:46:23.3P
Philadephia, Pennsylvania 29.66 5:59.211:46:37.2P
Phoenix, Arizona 30.16 6:03.611:46:41.6P
New York, New York 30.75 6:08.811:46:46.8P
Golden, Colorado 31.02 6:11.211:46:49.2P
Boston, Massachusetts 33.24 6:30.611:47:08.6P
Duluth, Minnesota 34.30 6:39.811:47:17.8P
Ottawa, Canada 34.48 6:41.411:47:19.4P
Los Angeles, California 34.74 6:43.511:47:21.5P
Bangor, Maine 36.22 6:56.311:47:34.3P
San Francisco, California 39.55 7:24.211:48:02.2P
Seattle, Washington 45.26 8:10.611:48:48.6P
Anchorage, Alaska 65.6510:37.111:51:15.1P
Honolulu, Hawaii 66.7610:44.211:51:22.2P
London, England 79.1211:57.311:52:35.3P
Bergen, Norway 80.9812:07.311:52:45.3P
Palmer Station, Antarctica 81.9412:12.411:52:50.4P
Rome, Italy 89.5712:50.011:53:28.0P
Moscow, Russia 98.4213:30.411:54:08.4Pdiff
Wellington, New Zealand 103.3713:52.411:54:30.4Pdiff
Tokyo, Japan 114.0714:39.911:55:17.9Pdiff
Brisbane, Australia 121.1115:11.111:55:49.1Pdiff
Agana, Guam 121.5115:12.911:55:50.9Pdiff
Beijing, China 123.0515:19.711:55:57.7Pdiff
Nairobi, Kenya 124.4215:25.811:56:03.8Pdiff
Kathmandu, Nepal 139.5516:33.011:57:11.0Pdiff

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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