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Earthquake Hazards Program

Magnitude 3.3 PUERTO RICO REGION

Wednesday, April 08, 2009 at 02:17:11 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
San Juan, Puerto Rico 0.37 0:11.5 2:17:22.5Pn
Miami, Florida 15.08 3:29.1 2:20:40.1Pn
Washington, D.C. 22.40 4:52.7 2:22:03.8P
Philadelphia, Pennsylvania 22.71 4:56.0 2:22:07.0P
New York, New York 23.08 4:59.9 2:22:10.9P
Boston, Massachusetts 24.02 5:08.5 2:22:19.5P
Knoxville, Tennessee 24.27 5:10.8 2:22:21.8P
Bangor, Maine 26.18 5:28.1 2:22:39.1P
Ottawa, Canada 27.93 5:43.7 2:22:54.7P
St. Louis, Missouri 29.14 5:54.5 2:23:05.5P
Brownsville, Texas 30.16 6:03.5 2:23:14.5P
Mexico City, Mexico 31.53 6:15.6 2:23:26.6P
Lima, Peru 32.51 6:24.2 2:23:35.2P
Wichita, Kansas 33.46 6:32.4 2:23:43.4P
Duluth, Minnesota 35.42 6:49.3 2:24:00.3P
Albuquerque, New Mexico 39.63 7:24.8 2:24:35.8P
Golden, Colorado 39.89 7:27.0 2:24:38.0P
Phoenix, Arizona 43.76 7:58.5 2:25:09.5P
Los Angeles, California 48.93 8:39.1 2:25:50.1P
San Francisco, California 52.61 9:06.8 2:26:17.8P
Seattle, Washington 54.03 9:17.2 2:26:28.2P
London, England 60.4710:02.7 2:27:13.7P
Bergen, Norway 64.6410:30.4 2:27:41.4P
Rome, Italy 69.2010:59.4 2:28:10.4P
Anchorage, Alaska 71.0111:10.5 2:28:21.5P
Moscow, Russia 82.1112:13.2 2:29:24.2P
Honolulu, Hawaii 85.2212:29.0 2:29:40.0P
Palmer Station, Antarctica 86.1912:33.8 2:29:44.8P
Nairobi, Kenya 102.3713:47.8 2:30:58.8Pdiff
Tokyo, Japan 120.8015:09.6 2:32:20.6Pdiff
Beijing, China 121.7015:13.6 2:32:24.6Pdiff
Wellington, New Zealand 124.0615:24.1 2:32:35.1Pdiff
Kathmandu, Nepal 126.0915:33.1 2:32:44.1Pdiff
Agana, Guam 136.1216:17.7 2:33:28.7Pdiff
Brisbane, Australia 143.3716:49.8 2:34:00.8Pdiff

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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