Theoretical P-Wave Travel Times

Magnitude 4.4 OFFSHORE EL SALVADOR
Tuesday, April 23, 2013 at 14:44:34 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 11.63 2:43.212:02:52.2Pn
Brownsville, Texas 15.26 3:31.512:03:40.5Pn
Miami, Florida 15.55 3:35.312:03:44.3Pn
San Juan, Puerto Rico 22.99 4:59.312:05:08.3P
Knoxville, Tennessee 23.44 5:03.612:05:12.6P
St. Louis, Missouri 25.87 5:25.812:05:34.8P
Wichita, Kansas 25.98 5:26.812:05:35.8P
Albuquerque, New Mexico 27.28 5:38.412:05:47.4P
Lima, Peru 27.45 5:39.912:05:48.9P
Washington, D.C. 28.25 5:47.112:05:56.1P
Phoenix, Arizona 29.32 5:56.612:06:05.6P
Philadelphia, Pennsylvania 29.85 6:01.312:06:10.3P
Golden, Colorado 30.40 6:06.112:06:15.1P
New York, New York 30.95 6:11.012:06:20.0P
Boston, Massachusetts 33.48 6:33.112:06:42.1P
Los Angeles, California 33.86 6:36.412:06:45.4P
Duluth, Minnesota 34.03 6:37.812:06:46.8P
Ottawa, Canada 34.58 6:42.612:06:51.6P
Bangor, Maine 36.46 6:58.712:07:07.7P
San Francisco, California 38.69 7:17.512:07:26.5P
Seattle, Washington 44.54 8:05.412:08:14.4P
Anchorage, Alaska 65.0010:33.412:10:42.4P
Honolulu, Hawaii 65.7210:38.012:10:47.0P
London, England 79.6212:00.512:12:09.5P
Bergen, Norway 81.3212:09.612:12:18.6P
Palmer Station, Antarctica 82.3012:14.812:12:23.8P
Rome, Italy 90.1812:53.412:13:02.4P
Moscow, Russia 98.7213:32.212:13:41.2Pdiff
Wellington, New Zealand 102.7113:49.912:13:58.9Pdiff
Tokyo, Japan 113.2414:36.712:14:45.7Pdiff
Brisbane, Australia 120.2615:07.912:15:16.9Pdiff
Agana, Guam 120.5015:08.912:15:17.9Pdiff
Beijing, China 122.4715:17.712:15:26.7Pdiff
Nairobi, Kenya 125.4115:30.712:15:39.7Pdiff
Kathmandu, Nepal 139.5016:33.312:16:42.3Pdiff

Travel Time Information and Calculator

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