Link to USGS home page.
Earthquake Hazards Program


Monday, March 03, 2008 at 14:11:14 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
Agana, Guam 18.55 4:14.914:15:29.9P
Tokyo, Japan 25.54 5:26.714:16:41.7P
Beijing, China 27.64 5:45.714:17:00.7P
Kathmandu, Nepal 40.19 7:34.214:18:49.2P
Brisbane, Australia 48.53 8:40.914:19:55.9P
Wellington, New Zealand 70.8011:14.514:22:29.4P
Honolulu, Hawaii 72.8311:26.714:22:41.7P
Anchorage, Alaska 75.6811:43.314:22:58.3P
Moscow, Russia 77.9211:55.914:23:10.9P
Nairobi, Kenya 89.1712:53.514:24:08.5P
Bergen, Norway 92.5513:09.214:24:24.2P
Seattle, Washington 94.3513:17.414:24:32.4P
Rome, Italy 97.6413:32.314:24:47.3P
San Francisco, California 98.4713:36.014:24:51.0Pdiff
London, England 100.1713:43.514:24:58.5Pdiff
Los Angeles, California 103.1113:56.614:25:11.6Pdiff
Phoenix, Arizona 107.9314:18.014:25:33.0Pdiff
Golden, Colorado 109.0714:23.114:25:38.1Pdiff
Albuquerque, New Mexico 110.8714:31.014:25:46.0Pdiff
Duluth, Minnesota 111.1814:32.414:25:47.4Pdiff
Wichita, Kansas 115.0614:49.614:26:04.6Pdiff
St. Louis, Missouri 118.2715:03.914:26:18.9Pdiff
Ottawa, Canada 118.3515:04.214:26:19.2Pdiff
Bangor, Maine 120.6215:14.314:26:29.3Pdiff
Boston, Massachusetts 122.4515:22.414:26:37.4Pdiff
Brownsville, Texas 122.6315:23.214:26:38.2Pdiff
Knoxville, Tennessee 122.9215:24.514:26:39.5Pdiff
New York, New York 123.1615:25.614:26:40.6Pdiff
Philadephia, Pennsylvania 123.5015:27.114:26:42.1Pdiff
Washington, D.C. 123.8215:28.514:26:43.5Pdiff
Mexico City, Mexico 125.1115:34.214:26:49.2Pdiff
Palmer Station, Antarctica 125.3015:35.114:26:50.1Pdiff
Miami, Florida 133.6416:12.114:27:27.1Pdiff
San Juan, Puerto Rico 146.2519:36.614:30:51.6PKPdf
Lima, Peru 157.7919:53.714:31:08.7PKPdf

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