Link to USGS home page.
Earthquake Hazards Program


Saturday, May 16, 2009 at 00:53:52 UTC

Theoretical P-Wave Travel Times

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
Wellington, New Zealand 10.98 2:37.1 0:56:23.1Pn
Brisbane, Australia 24.76 5:21.7 0:59:07.7P
Honolulu, Hawaii 56.28 9:40.6 1:03:26.6P
Agana, Guam 56.72 9:43.8 1:03:29.8P
Palmer Station, Antarctica 69.8411:10.8 1:04:56.8P
Tokyo, Japan 77.2911:54.7 1:05:40.7P
Los Angeles, California 86.7012:44.0 1:06:30.0P
San Francisco, California 86.7612:44.3 1:06:30.3P
Phoenix, Arizona 90.2513:00.8 1:06:46.8P
Mexico City, Mexico 91.6113:07.2 1:06:53.2P
Beijing, China 92.9613:13.4 1:06:59.4P
Lima, Peru 93.6113:16.4 1:07:02.4P
Seattle, Washington 93.8513:17.4 1:07:03.4P
Albuquerque, New Mexico 94.8313:21.9 1:07:07.9P
Anchorage, Alaska 95.3813:24.4 1:07:10.4P
Brownsville, Texas 96.3613:28.9 1:07:14.9P
Golden, Colorado 98.4213:38.1 1:07:24.1Pdiff
Wichita, Kansas 102.5913:56.6 1:07:42.6Pdiff
St. Louis, Missouri 107.9314:20.3 1:08:06.3Pdiff
Kathmandu, Nepal 108.4814:22.7 1:08:08.7Pdiff
Miami, Florida 109.9714:29.3 1:08:15.3Pdiff
Duluth, Minnesota 110.1314:30.1 1:08:16.1Pdiff
Knoxville, Tennessee 110.4314:31.4 1:08:17.4Pdiff
Washington, D.C. 117.5315:02.9 1:08:48.9Pdiff
San Juan, Puerto Rico 118.5215:07.3 1:08:53.3Pdiff
Philadelphia, Pennsylvania 119.2415:10.5 1:08:56.5Pdiff
New York, New York 120.3215:15.3 1:09:01.3Pdiff
Ottawa, Canada 120.4315:15.8 1:09:01.8Pdiff
Boston, Massachusetts 122.8715:26.6 1:09:12.6Pdiff
Bangor, Maine 125.0715:36.4 1:09:22.4Pdiff
Nairobi, Kenya 132.9716:11.4 1:09:57.4Pdiff
Moscow, Russia 144.7717:03.8 1:10:49.8Pdiff
Bergen, Norway 151.0019:48.0 1:13:34.0PKPdf
London, England 160.0220:00.6 1:13:46.6PKPdf
Rome, Italy 166.2220:06.9 1:13:52.9PKPdf

Travel Time Information and Calculator

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

FirstGov button  Take Pride in America button