Theoretical P-Wave Travel Times

Magnitude 4.4 HAIDA GWAII REGION, BR
Friday, March 15, 2013 at 02:17:23 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
Seattle, Washington 7.79 1:54.2 0:57:38.2Pn
Anchorage, Alaska 13.04 3:06.2 0:58:50.2Pn
San Francisco, California 16.25 3:49.3 0:59:33.3Pn
Los Angeles, California 20.98 4:44.3 1:00:28.3P
Golden, Colorado 22.34 4:58.9 1:00:42.9P
Phoenix, Arizona 23.87 5:14.7 1:00:58.7P
Albuquerque, New Mexico 25.06 5:25.5 1:01:09.5P
Duluth, Minnesota 26.07 5:34.7 1:01:18.7P
Wichita, Kansas 28.17 5:53.6 1:01:37.6P
St. Louis, Missouri 31.77 6:25.4 1:02:09.4P
Knoxville, Tennessee 36.61 7:07.3 1:02:51.3P
Ottawa, Canada 36.67 7:07.8 1:02:51.8P
Brownsville, Texas 37.09 7:11.4 1:02:55.4P
Honolulu, Hawaii 37.13 7:11.8 1:02:55.8P
Washington, D.C. 39.65 7:32.9 1:03:16.9P
Philadelphia, Pennsylvania 40.14 7:37.0 1:03:21.0P
New York, New York 40.38 7:39.0 1:03:23.0P
Bangor, Maine 41.13 7:45.1 1:03:29.1P
Boston, Massachusetts 41.17 7:45.5 1:03:29.5P
Mexico City, Mexico 41.74 7:50.2 1:03:34.2P
Miami, Florida 46.86 8:31.2 1:04:15.2P
San Juan, Puerto Rico 60.8010:13.3 1:05:57.3P
Tokyo, Japan 61.7210:19.5 1:06:03.5P
Bergen, Norway 62.2210:22.9 1:06:06.9P
London, England 68.5611:04.0 1:06:48.0P
Beijing, China 70.5511:16.3 1:07:00.3P
Moscow, Russia 71.6411:22.9 1:07:06.9P
Agana, Guam 75.4411:45.3 1:07:29.3P
Lima, Peru 79.7112:09.1 1:07:53.1P
Rome, Italy 80.9412:15.8 1:07:59.8P
Kathmandu, Nepal 93.6813:17.9 1:09:01.9P
Brisbane, Australia 103.0313:59.7 1:09:43.7Pdiff
Wellington, New Zealand 104.3014:05.4 1:09:49.4Pdiff
Nairobi, Kenya 127.9615:50.4 1:11:34.4Pdiff
Palmer Station, Antarctica 130.2016:00.3 1:11:44.3Pdiff

Travel Time Information and Calculator

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