Theoretical P-Wave Travel Times

Magnitude 2.7 NORTHERN TEXAS

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
Travel Time
Arrival Time
Wichita, Kansas 5.31 1:19.921:09:09.9Pn
Brownsville, Texas 6.54 1:36.821:09:26.8Pn
St. Louis, Missouri 8.28 2:00.721:09:50.7Pn
Albuquerque, New Mexico 8.45 2:03.021:09:53.0Pn
Golden, Colorado 9.85 2:22.321:10:12.3Pn
Knoxville, Tennessee 10.40 2:29.721:10:19.7Pn
Phoenix, Arizona 12.71 3:01.421:10:51.4Pn
Mexico City, Mexico 13.12 3:07.021:10:57.0Pn
Duluth, Minnesota 14.75 3:29.221:11:19.2Pn
Miami, Florida 16.12 3:47.321:11:37.3Pn
Washington, D.C. 17.43 4:03.821:11:53.8Pn
Los Angeles, California 17.85 4:09.121:11:59.0Pn
Philadelphia, Pennsylvania 19.11 4:23.721:12:13.7P
New York, New York 20.18 4:35.321:12:25.3P
Ottawa, Canada 20.93 4:43.521:12:33.5P
San Francisco, California 21.44 4:49.021:12:39.0P
Boston, Massachusetts 22.75 5:03.021:12:53.0P
Seattle, Washington 24.55 5:20.521:13:10.5P
Bangor, Maine 25.13 5:25.821:13:15.8P
San Juan, Puerto Rico 31.01 6:18.421:14:08.4P
Anchorage, Alaska 44.44 8:11.721:16:01.7P
Lima, Peru 48.22 8:41.521:16:31.5P
Honolulu, Hawaii 54.76 9:30.421:17:20.4P
Bergen, Norway 68.0511:00.521:18:50.5P
London, England 69.2711:08.121:18:58.1P
Rome, Italy 81.7012:19.421:20:09.4P
Moscow, Russia 84.0212:31.521:20:21.5P
Tokyo, Japan 93.8813:18.421:21:08.4P
Beijing, China 101.6313:53.121:21:43.1Pdiff
Palmer Station, Antarctica 102.9313:58.921:21:48.9Pdiff
Agana, Guam 105.4214:10.021:21:60.0Pdiff
Wellington, New Zealand 109.3414:27.421:22:17.4Pdiff
Brisbane, Australia 120.1515:15.321:23:05.3Pdiff
Kathmandu, Nepal 120.1515:15.421:23:05.4Pdiff
Nairobi, Kenya 126.6715:44.321:23:34.3Pdiff

Travel Time Information and Calculator

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