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Earthquake Hazards Program

Magnitude 4.4 GALAPAGOS TRIPLE JUNCTION REGION

Sunday, September 14, 2008 at 09:18:19 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 14.83 3:29.7 9:21:48.7Pn
Brownsville, Texas 21.46 4:48.5 9:23:07.5P
Phoenix, Arizona 29.51 6:04.4 9:24:23.4P
Albuquerque, New Mexico 30.11 6:09.7 9:24:28.7P
Miami, Florida 30.13 6:09.9 9:24:28.9P
Lima, Peru 30.97 6:17.3 9:24:36.3P
Los Angeles, California 32.15 6:27.7 9:24:46.7P
Wichita, Kansas 33.03 6:35.4 9:24:54.4P
Golden, Colorado 34.64 6:49.4 9:25:08.4P
Knoxville, Tennessee 34.94 6:51.9 9:25:10.9P
St. Louis, Missouri 35.48 6:56.6 9:25:15.6P
San Francisco, California 37.08 7:10.2 9:25:29.2P
San Juan, Puerto Rico 38.48 7:22.1 9:25:41.1P
Washington, D.C. 41.18 7:44.5 9:26:03.5P
Duluth, Minnesota 42.65 7:56.5 9:26:15.5P
Philadephia, Pennsylvania 42.94 7:58.9 9:26:17.9P
New York, New York 44.10 8:08.2 9:26:27.2P
Seattle, Washington 45.72 8:21.1 9:26:40.1P
Ottawa, Canada 46.79 8:29.6 9:26:48.6P
Boston, Massachusetts 46.80 8:29.6 9:26:48.6P
Bangor, Maine 49.71 8:52.1 9:27:11.1P
Honolulu, Hawaii 55.42 9:34.5 9:27:53.5P
Anchorage, Alaska 66.0610:47.0 9:29:06.0P
Palmer Station, Antarctica 77.6211:56.5 9:30:15.5P
Wellington, New Zealand 87.3712:47.3 9:31:06.3P
London, England 94.1113:18.7 9:31:37.7P
Bergen, Norway 94.6613:21.2 9:31:40.2P
Brisbane, Australia 104.6314:05.6 9:32:24.6Pdiff
Rome, Italy 105.2914:08.6 9:32:27.6Pdiff
Tokyo, Japan 108.6714:23.6 9:32:42.6Pdiff
Agana, Guam 110.2214:30.4 9:32:49.4Pdiff
Moscow, Russia 111.4114:35.8 9:32:54.8Pdiff
Beijing, China 122.4015:24.5 9:33:43.5Pdiff
Nairobi, Kenya 139.8216:41.9 9:35:00.9Pdiff
Kathmandu, Nepal 146.5019:39.4 9:37:58.4PKPdf

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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