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Earthquake Hazards Program

Magnitude 4.2 REVILLA GIGEDO ISLANDS REGION

Sunday, July 29, 2007 at 19:22:17 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 9.32 2:11.619:24:28.6Pn
Brownsville, Texas 12.22 2:51.119:25:08.1Pn
Phoenix, Arizona 13.80 3:12.419:25:29.4Pn
Albuquerque, New Mexico 15.31 3:32.119:25:49.1Pn
Los Angeles, California 16.32 3:44.919:26:01.9Pn
Golden, Colorado 20.10 4:28.119:26:45.1P
Wichita, Kansas 20.55 4:33.019:26:50.0P
San Francisco, California 21.31 4:41.219:26:58.2P
St. Louis, Missouri 24.81 5:15.819:27:32.8P
Knoxville, Tennessee 26.40 5:30.119:27:47.1P
Miami, Florida 27.22 5:37.519:27:54.5P
Seattle, Washington 29.88 6:01.219:28:18.1P
Duluth, Minnesota 30.17 6:03.719:28:20.7P
Washington, D.C. 33.49 6:32.819:28:49.8P
Philadephia, Pennsylvania 35.25 6:48.019:29:05.0P
New York, New York 36.37 6:57.519:29:14.5P
Ottawa, Canada 37.47 7:06.919:29:23.9P
Boston, Massachusetts 39.03 7:20.019:29:37.0P
San Juan, Puerto Rico 40.48 7:32.019:29:49.0P
Bangor, Maine 41.55 7:40.819:29:57.8P
Lima, Peru 44.73 8:06.419:30:23.4P
Honolulu, Hawaii 45.55 8:12.919:30:29.9P
Anchorage, Alaska 50.20 8:48.919:31:05.9P
Bergen, Norway 84.2612:24.319:34:41.3P
London, England 85.8112:32.119:34:49.1P
Wellington, New Zealand 93.0013:05.919:35:22.9P
Palmer Station, Antarctica 93.3813:07.719:35:24.7P
Tokyo, Japan 94.6613:13.519:35:30.5P
Rome, Italy 98.2413:29.619:35:46.6Pdiff
Moscow, Russia 99.5913:35.619:35:52.6Pdiff
Agana, Guam 100.2213:38.419:35:55.4Pdiff
Brisbane, Australia 105.7114:02.819:36:19.8Pdiff
Beijing, China 106.9714:08.419:36:25.4Pdiff
Kathmandu, Nepal 130.7215:53.819:38:10.8Pdiff
Nairobi, Kenya 141.8716:43.319:39:00.3Pdiff

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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