Theoretical P-Wave Travel Times

Magnitude 2.8 GREATER LOS ANGELES AREA, CALIFORNIA
Wednesday, March 20, 2013 at 16:22:39 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
Los Angeles, California 0.04 0:02.716:22:41.7Pg
San Francisco, California 5.07 1:15.416:23:54.4Pn
Phoenix, Arizona 5.15 1:16.516:23:55.5Pn
Albuquerque, New Mexico 9.61 2:17.716:24:56.7Pn
Golden, Colorado 11.88 2:48.816:25:27.8Pn
Seattle, Washington 14.11 3:19.316:25:58.3Pn
Wichita, Kansas 17.32 4:01.216:26:40.2Pn
Brownsville, Texas 19.66 4:28.316:27:07.3P
Mexico City, Mexico 22.32 4:57.016:27:36.0P
St. Louis, Missouri 22.95 5:03.716:27:42.7P
Duluth, Minnesota 23.44 5:08.816:27:47.8P
Knoxville, Tennessee 27.07 5:41.916:28:20.9P
Washington, D.C. 33.27 6:36.716:29:15.7P
Miami, Florida 33.83 6:41.616:29:20.6P
Anchorage, Alaska 33.97 6:42.816:29:21.8P
Ottawa, Canada 34.24 6:45.116:29:24.1P
Philadelphia, Pennsylvania 34.64 6:48.616:29:27.6P
New York, New York 35.47 6:55.716:29:34.7P
Honolulu, Hawaii 37.08 7:09.516:29:48.5P
Boston, Massachusetts 37.57 7:13.616:29:52.6P
Bangor, Maine 39.15 7:26.916:30:05.9P
San Juan, Puerto Rico 48.70 8:43.616:31:22.6P
Lima, Peru 60.2810:07.816:32:46.8P
Bergen, Norway 75.2111:42.016:34:21.0P
London, England 79.0212:03.416:34:42.4P
Tokyo, Japan 79.5112:06.116:34:45.1P
Moscow, Russia 88.2512:50.716:35:29.7P
Agana, Guam 88.2912:50.916:35:29.9P
Beijing, China 90.7913:02.516:35:41.5P
Rome, Italy 91.9613:08.016:35:47.0P
Wellington, New Zealand 96.9713:30.816:36:09.8P
Brisbane, Australia 103.8914:01.616:36:40.6Pdiff
Palmer Station, Antarctica 109.2614:25.416:37:04.4Pdiff
Kathmandu, Nepal 114.7014:49.516:37:28.5Pdiff
Nairobi, Kenya 139.9316:41.516:39:20.5Pdiff

Travel Time Information and Calculator

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