Theoretical P-Wave Travel Times

Magnitude 4.5 OFFSHORE EL SALVADOR
Saturday, April 20, 2013 at 17:09:37 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 12.15 2:50.5 8:58:35.5Pn
Miami, Florida 15.38 3:34.4 8:59:19.4Pn
Brownsville, Texas 15.64 3:37.6 8:59:22.6Pn
San Juan, Puerto Rico 22.51 4:56.5 9:00:41.5P
Knoxville, Tennessee 23.49 5:06.7 9:00:51.7P
St. Louis, Missouri 26.02 5:29.7 9:01:14.7P
Wichita, Kansas 26.25 5:31.7 9:01:16.7P
Lima, Peru 27.10 5:39.4 9:01:24.4P
Albuquerque, New Mexico 27.68 5:44.6 9:01:29.6P
Washington, D.C. 28.19 5:49.1 9:01:34.1P
Philadelphia, Pennsylvania 29.77 6:03.2 9:01:48.2P
Phoenix, Arizona 29.78 6:03.3 9:01:48.3P
Golden, Colorado 30.74 6:11.8 9:01:56.8P
New York, New York 30.86 6:12.8 9:01:57.8P
Boston, Massachusetts 33.37 6:34.8 9:02:19.8P
Duluth, Minnesota 34.19 6:41.9 9:02:26.9P
Los Angeles, California 34.33 6:43.1 9:02:28.1P
Ottawa, Canada 34.55 6:45.0 9:02:30.0P
Bangor, Maine 36.36 7:00.5 9:02:45.5P
San Francisco, California 39.16 7:24.1 9:03:09.1P
Seattle, Washington 44.94 8:11.3 9:03:56.3P
Anchorage, Alaska 65.3610:38.7 9:06:23.7P
Honolulu, Hawaii 66.2710:44.6 9:06:29.6P
London, England 79.3812:02.3 9:07:47.3P
Bergen, Norway 81.1712:12.0 9:07:57.0P
Palmer Station, Antarctica 82.0912:16.8 9:08:01.8P
Rome, Italy 89.8812:55.2 9:08:40.2P
Moscow, Russia 98.5913:34.9 9:09:19.9Pdiff
Wellington, New Zealand 103.0413:54.6 9:09:39.6Pdiff
Tokyo, Japan 113.6914:41.9 9:10:26.9Pdiff
Brisbane, Australia 120.6915:13.0 9:10:58.0Pdiff
Agana, Guam 121.0415:14.6 9:10:59.6Pdiff
Beijing, China 122.8015:22.4 9:11:07.4Pdiff
Nairobi, Kenya 124.9015:31.7 9:11:16.7Pdiff
Kathmandu, Nepal 139.5616:36.8 9:12:21.8Pdiff

Travel Time Information and Calculator

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