Theoretical P-Wave Travel Times

Magnitude 4.2 COSTA RICA
Saturday, February 02, 2013 at 07:50:24 UTC

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
Miami, Florida 16.59 3:52.721:33:25.7Pn
Mexico City, Mexico 17.65 4:06.021:33:39.0Pn
San Juan, Puerto Rico 19.52 4:27.421:34:00.4P
Brownsville, Texas 20.73 4:40.621:34:13.6P
Lima, Peru 22.54 5:00.021:34:33.0P
Knoxville, Tennessee 26.36 5:36.221:35:09.2P
St. Louis, Missouri 29.58 6:05.021:35:38.0P
Washington, D.C. 29.94 6:08.221:35:41.2P
Wichita, Kansas 30.60 6:14.021:35:47.0P
Philadelphia, Pennsylvania 31.34 6:20.621:35:53.6P
New York, New York 32.34 6:29.321:36:02.3P
Albuquerque, New Mexico 32.79 6:33.321:36:06.3P
Boston, Massachusetts 34.63 6:49.321:36:22.3P
Phoenix, Arizona 35.13 6:53.621:36:26.6P
Golden, Colorado 35.55 6:57.221:36:30.2P
Ottawa, Canada 36.50 7:05.321:36:38.3P
Bangor, Maine 37.57 7:14.421:36:47.4P
Duluth, Minnesota 37.77 7:16.121:36:49.1P
Los Angeles, California 39.77 7:32.821:37:05.8P
San Francisco, California 44.55 8:11.821:37:44.8P
Seattle, Washington 49.98 8:54.221:38:27.2P
Anchorage, Alaska 70.2111:13.121:40:46.1P
Honolulu, Hawaii 71.5911:21.521:40:54.5P
Palmer Station, Antarctica 78.3912:00.821:41:33.8P
London, England 78.8312:03.221:41:36.2P
Bergen, Norway 81.5112:17.721:41:50.7P
Rome, Italy 88.5612:52.921:42:25.9P
Moscow, Russia 99.1113:41.121:43:14.1Pdiff
Wellington, New Zealand 104.5914:05.521:43:38.5Pdiff
Tokyo, Japan 119.0115:09.521:44:42.5Pdiff
Nairobi, Kenya 120.6415:16.721:44:49.7Pdiff
Brisbane, Australia 123.5115:29.521:45:02.5Pdiff
Agana, Guam 126.4815:42.621:45:15.6Pdiff
Beijing, China 127.3215:46.321:45:19.3Pdiff
Kathmandu, Nepal 141.6216:49.921:46:22.9Pdiff

Travel Time Information and Calculator

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