Theoretical P-Wave Travel Times

Magnitude 3.4 POTOMAC-SHENANDOAH REGION
Friday, July 16, 2010 at 09:04:46 UTC

Theoretical P-wave Travel Times

Theoretical P-wave Travel Times

These maps show 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
Washington, D.C. 0.32 0:06.2 9:04:53.2Pg
Philadelphia, Pennsylvania 1.79 0:31.6 9:05:18.6Pn
New York, New York 2.93 0:47.2 9:05:34.2Pn
Boston, Massachusetts 5.65 1:24.6 9:06:11.6Pn
Ottawa, Canada 6.35 1:34.2 9:06:21.2Pn
Knoxville, Tennessee 7.06 1:44.0 9:06:31.0Pn
Bangor, Maine 8.46 2:03.1 9:06:50.1Pn
St. Louis, Missouri 10.15 2:26.3 9:07:13.3Pn
Duluth, Minnesota 13.28 3:09.2 9:07:56.2Pn
Miami, Florida 13.59 3:13.4 9:08:00.4Pn
Wichita, Kansas 15.80 3:43.1 9:08:30.1Pn
Brownsville, Texas 21.54 4:50.0 9:09:37.0P
Golden, Colorado 21.56 4:50.3 9:09:37.3P
San Juan, Puerto Rico 22.76 5:03.1 9:09:50.1P
Albuquerque, New Mexico 23.73 5:13.1 9:10:00.1P
Mexico City, Mexico 27.31 5:45.6 9:10:32.6P
Phoenix, Arizona 28.52 5:56.4 9:10:43.4P
Los Angeles, California 33.10 6:36.7 9:11:23.7P
Seattle, Washington 33.41 6:39.5 9:11:26.5P
San Francisco, California 35.12 6:54.2 9:11:41.2P
Anchorage, Alaska 48.50 8:43.6 9:13:30.6P
Lima, Peru 51.00 9:02.6 9:13:49.6P
London, England 53.16 9:18.8 9:14:05.8P
Bergen, Norway 53.43 9:20.8 9:14:07.8P
Rome, Italy 65.1110:41.7 9:15:28.7P
Honolulu, Hawaii 69.7611:11.2 9:15:58.2P
Moscow, Russia 70.5311:15.9 9:16:02.9P
Tokyo, Japan 98.0813:37.4 9:18:24.4P
Beijing, China 100.3113:47.3 9:18:34.3Pdiff
Palmer Station, Antarctica 107.0814:17.4 9:19:04.4Pdiff
Nairobi, Kenya 109.3414:27.4 9:19:14.4Pdiff
Kathmandu, Nepal 111.5214:37.1 9:19:24.1Pdiff
Agana, Guam 114.6114:50.8 9:19:37.8Pdiff
Wellington, New Zealand 126.4515:43.3 9:20:30.3Pdiff
Brisbane, Australia 136.9216:29.8 9:21:16.8Pdiff

Travel Time Information and Calculator

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver