Theoretical P-Wave Travel Times

Magnitude 4.4 OFFSHORE EL SALVADOR
Saturday, April 20, 2013 at 14:09:18 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 12.31 2:52.7 9:36:29.7Pn
Miami, Florida 15.64 3:37.7 9:37:14.7Pn
Brownsville, Texas 15.88 3:40.8 9:37:17.8Pn
San Juan, Puerto Rico 22.61 4:57.5 9:38:34.5P
Knoxville, Tennessee 23.78 5:09.3 9:38:46.3P
St. Louis, Missouri 26.31 5:32.3 9:39:09.3P
Wichita, Kansas 26.52 5:34.2 9:39:11.2P
Lima, Peru 26.84 5:37.1 9:39:14.1P
Albuquerque, New Mexico 27.92 5:46.7 9:39:23.7P
Washington, D.C. 28.46 5:51.6 9:39:28.6P
Phoenix, Arizona 29.99 6:05.1 9:39:42.1P
Philadelphia, Pennsylvania 30.05 6:05.6 9:39:42.6P
Golden, Colorado 31.00 6:14.1 9:39:51.1P
New York, New York 31.13 6:15.2 9:39:52.2P
Boston, Massachusetts 33.64 6:37.1 9:40:14.1P
Duluth, Minnesota 34.48 6:44.4 9:40:21.4P
Los Angeles, California 34.53 6:44.8 9:40:21.8P
Ottawa, Canada 34.83 6:47.4 9:40:24.4P
Bangor, Maine 36.63 7:02.8 9:40:39.8P
San Francisco, California 39.36 7:25.8 9:41:02.8P
Seattle, Washington 45.18 8:13.2 9:41:50.2P
Anchorage, Alaska 65.6110:40.4 9:44:17.4P
Honolulu, Hawaii 66.3510:45.1 9:44:22.1P
London, England 79.6012:03.6 9:45:40.6P
Bergen, Norway 81.4212:13.3 9:45:50.3P
Palmer Station, Antarctica 81.8012:15.3 9:45:52.3P
Rome, Italy 90.0812:56.1 9:46:33.1P
Moscow, Russia 98.8513:36.0 9:47:13.0Pdiff
Wellington, New Zealand 102.8513:53.8 9:47:30.8Pdiff
Tokyo, Japan 113.9014:42.9 9:48:19.9Pdiff
Brisbane, Australia 120.5715:12.5 9:48:49.4Pdiff
Agana, Guam 121.1515:15.0 9:48:52.0Pdiff
Beijing, China 123.0615:23.5 9:49:00.5Pdiff
Nairobi, Kenya 124.9415:31.9 9:49:08.9Pdiff
Kathmandu, Nepal 139.8416:38.0 9:50:15.0Pdiff

Travel Time Information and Calculator

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