Theoretical P-Wave Travel Times

Magnitude 4.9 UNIMAK ISLAND REGION, ALASKA
Friday, April 12, 2013 at 19:10:00 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
Anchorage, Alaska 10.89 2:33.214:53:39.2Pn
Seattle, Washington 27.11 5:38.714:56:44.7P
Honolulu, Hawaii 32.80 6:28.914:57:34.9P
San Francisco, California 32.95 6:30.314:57:36.3P
Los Angeles, California 37.97 7:13.314:58:19.3P
Golden, Colorado 41.84 7:45.414:58:51.4P
Phoenix, Arizona 42.01 7:46.814:58:52.8P
Tokyo, Japan 42.25 7:48.714:58:54.7P
Albuquerque, New Mexico 44.09 8:03.614:59:09.6P
Duluth, Minnesota 45.01 8:11.014:59:17.0P
Wichita, Kansas 47.78 8:32.614:59:38.6P
St. Louis, Missouri 51.28 8:59.415:00:05.4P
Beijing, China 52.99 9:12.015:00:18.0P
Ottawa, Canada 54.64 9:24.115:00:30.1P
Knoxville, Tennessee 56.08 9:34.515:00:40.5P
Brownsville, Texas 56.14 9:35.015:00:41.0P
Agana, Guam 56.43 9:37.015:00:43.0P
Washington, D.C. 58.52 9:51.715:00:57.7P
Bangor, Maine 58.57 9:52.115:00:58.1P
Philadelphia, Pennsylvania 58.77 9:53.515:00:59.4P
New York, New York 58.83 9:53.915:00:59.9P
Boston, Massachusetts 59.19 9:56.415:01:02.4P
Mexico City, Mexico 60.1110:02.715:01:08.7P
Bergen, Norway 65.9410:41.515:01:47.5P
Miami, Florida 66.4710:44.815:01:50.8P
Moscow, Russia 69.3311:02.915:02:08.9P
London, England 74.3311:32.915:02:38.9P
Kathmandu, Nepal 78.9511:59.015:03:05.0P
San Juan, Puerto Rico 80.2212:05.915:03:11.9P
Rome, Italy 84.7212:29.315:03:35.3P
Brisbane, Australia 88.8212:49.215:03:55.2P
Wellington, New Zealand 96.2913:23.615:04:29.6P
Lima, Peru 98.2413:32.315:04:38.3P
Nairobi, Kenya 124.7815:30.115:06:36.1Pdiff
Palmer Station, Antarctica 141.7816:45.515:07:51.5Pdiff

Travel Time Information and Calculator

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