Theoretical P-Wave Travel Times

Magnitude 7.6 COSTA RICA
Wednesday, September 05, 2012 at 14:42:10 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
Mexico City, Mexico 16.23 3:45.014:45:55.0Pn
Miami, Florida 16.31 3:46.014:45:56.0Pn
Brownsville, Texas 19.46 4:23.214:46:33.2P
San Juan, Puerto Rico 20.38 4:33.114:46:43.1P
Lima, Peru 23.56 5:06.814:47:16.8P
Knoxville, Tennessee 25.71 5:26.414:47:36.4P
St. Louis, Missouri 28.76 5:53.714:48:03.7P
Wichita, Kansas 29.56 6:00.814:48:10.8P
Washington, D.C. 29.60 6:01.214:48:11.2P
Philadelphia, Pennsylvania 31.06 6:14.014:48:24.0P
Albuquerque, New Mexico 31.53 6:18.214:48:28.2P
New York, New York 32.08 6:23.014:48:33.0P
Phoenix, Arizona 33.79 6:37.914:48:47.9P
Golden, Colorado 34.39 6:43.114:48:53.1P
Boston, Massachusetts 34.44 6:43.514:48:53.5P
Ottawa, Canada 36.13 6:58.014:49:08.0P
Duluth, Minnesota 36.96 7:05.114:49:15.1P
Bangor, Maine 37.39 7:08.814:49:18.8P
Los Angeles, California 38.39 7:17.214:49:27.2P
San Francisco, California 43.19 7:56.714:50:06.7P
Seattle, Washington 48.75 8:40.514:50:50.5P
Anchorage, Alaska 69.0511:01.514:53:11.5P
Honolulu, Hawaii 70.1611:08.314:53:18.3P
London, England 79.1712:00.614:54:10.6P
Palmer Station, Antarctica 79.1812:00.614:54:10.6P
Bergen, Norway 81.6212:13.714:54:23.7P
Rome, Italy 89.1012:50.914:55:00.9P
Moscow, Russia 99.1913:36.914:55:46.9Pdiff
Wellington, New Zealand 104.0013:58.214:56:08.2Pdiff
Tokyo, Japan 117.6914:59.014:57:09.0Pdiff
Nairobi, Kenya 121.8815:17.614:57:27.6Pdiff
Brisbane, Australia 122.6215:20.914:57:30.9Pdiff
Agana, Guam 125.0415:31.614:57:41.6Pdiff
Beijing, China 126.2815:37.214:57:47.2Pdiff
Kathmandu, Nepal 141.3416:44.014:58:54.0Pdiff

Travel Time Information and Calculator

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