Theoretical P-Wave Travel Times

Magnitude 5.3 CENTRAL CALIFORNIA
2012 October 21 06:55:09 UTC

Theoretical P-wave Travel Times
Theoretical P-wave Travel Times

These maps show 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
San Francisco, California 1.92 0:32.8 6:55:41.8Pn
Los Angeles, California 3.11 0:49.2 6:55:58.2Pn
Phoenix, Arizona 7.76 1:53.1 6:57:02.1Pn
Seattle, Washington 11.53 2:44.7 6:57:53.7Pn
Albuquerque, New Mexico 11.64 2:46.1 6:57:55.1Pn
Golden, Colorado 12.82 3:02.3 6:58:11.3Pn
Wichita, Kansas 18.83 4:20.0 6:59:29.0P
Brownsville, Texas 22.48 4:59.5 7:00:08.5P
Duluth, Minnesota 23.76 5:12.7 7:00:21.7P
St. Louis, Missouri 24.35 5:18.1 7:00:27.1P
Mexico City, Mexico 25.42 5:27.8 7:00:36.8P
Knoxville, Tennessee 28.74 5:57.6 7:01:06.6P
Anchorage, Alaska 30.94 6:17.2 7:01:26.2P
Washington, D.C. 34.57 6:48.8 7:01:57.8P
Ottawa, Canada 34.94 6:52.0 7:02:01.0P
Honolulu, Hawaii 35.44 6:56.3 7:02:05.3P
Philadelphia, Pennsylvania 35.83 6:59.7 7:02:08.7P
Miami, Florida 36.17 7:02.6 7:02:11.6P
New York, New York 36.59 7:06.1 7:02:15.2P
Boston, Massachusetts 38.53 7:22.5 7:02:31.5P
Bangor, Maine 39.89 7:33.9 7:02:42.9P
San Juan, Puerto Rico 51.07 9:02.5 7:04:11.5P
Lima, Peru 63.4210:29.9 7:05:38.9P
Bergen, Norway 74.0611:36.2 7:06:45.2P
Tokyo, Japan 76.4211:49.8 7:06:58.8P
London, England 78.3312:00.5 7:07:09.5P
Agana, Guam 85.6312:38.8 7:07:47.8P
Moscow, Russia 86.5012:43.2 7:07:52.2P
Beijing, China 87.6512:48.7 7:07:57.7P
Rome, Italy 91.2713:05.7 7:08:14.7P
Wellington, New Zealand 97.1213:32.4 7:08:41.4P
Brisbane, Australia 102.8513:57.8 7:09:06.8Pdiff
Kathmandu, Nepal 111.7314:37.3 7:09:46.3Pdiff
Palmer Station, Antarctica 112.1414:39.1 7:09:48.1Pdiff
Nairobi, Kenya 139.4916:40.5 7:11:49.5Pdiff

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