Link to USGS home page.
Earthquake Hazards Program

Theoretical P-Wave Travel Times

Tuesday, November 02, 2004 at 10:02:12 UTC

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

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
Travel Time
Arrival Time
Seattle, Washington 4.59 1:09.510:03:22.5Pn
San Francisco, California 12.39 2:56.410:05:09.4Pn
Anchorage, Alaska 16.85 3:55.910:06:08.9Pn
Los Angeles, California 17.12 3:59.310:06:12.3Pn
Golden, Colorado 19.31 4:25.110:06:38.1P
Albuquerque, New Mexico 21.62 4:50.310:07:03.3P
Duluth, Minnesota 24.53 5:19.710:07:32.7P
Wichita, Kansas 25.41 5:27.610:07:40.6P
St. Louis, Missouri 29.45 6:03.910:08:16.9P
Brownsville, Texas 33.69 6:41.110:08:54.1P
Knoxville, Tennessee 34.32 6:46.610:08:59.6P
Ottawa, Canada 35.61 6:57.710:09:10.7P
Honolulu, Hawaii 36.15 7:02.310:09:15.3P
Washington, D.C. 37.97 7:17.810:09:30.8P
Mexico City, Mexico 38.12 7:19.010:09:32.0P
Philadephia, Pennsylvania 38.62 7:23.210:09:36.2P
New York, New York 38.97 7:26.210:09:39.2P
Boston, Massachusetts 40.02 7:34.910:09:47.9P
Bangor, Maine 40.27 7:37.010:09:50.0P
Miami, Florida 44.23 8:09.210:10:22.2P
San Juan, Puerto Rico 58.48 9:56.110:12:09.1P
Bergen, Norway 64.6110:37.610:12:50.6P
Tokyo, Japan 64.8110:38.910:12:51.9P
London, England 70.5211:15.010:13:28.0P
Beijing, China 74.2011:37.010:13:50.0P
Moscow, Russia 74.7711:40.310:13:53.3P
Lima, Peru 76.1811:48.410:14:01.4P
Agana, Guam 77.5811:56.310:14:09.3P
Rome, Italy 83.1012:25.910:14:38.9P
Kathmandu, Nepal 97.5513:34.210:15:47.2P
Wellington, New Zealand 102.8713:57.810:16:10.8Pdiff
Brisbane, Australia 103.1313:59.010:16:12.0Pdiff
Palmer Station, Antarctica 126.3415:42.010:17:55.0Pdiff
Nairobi, Kenya 130.6616:01.210:18:14.2Pdiff

Travel Time Information and Calculator


FirstGov button  Take Pride in America button