Link to USGS home page.
Earthquake Hazards Program

Theoretical P-Wave Travel Times

Friday, October 08, 2004 at 14:36:05 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
Agana, Guam 23.44 4:58.514:41:05.5P
Beijing, China 26.23 5:23.814:41:30.8P
Tokyo, Japan 27.70 5:37.014:41:44.0P
Kathmandu, Nepal 35.63 6:46.314:42:53.3P
Brisbane, Australia 51.72 8:54.914:45:01.9P
Wellington, New Zealand 74.1911:23.814:47:30.8P
Moscow, Russia 74.7111:26.714:47:33.7P
Honolulu, Hawaii 77.3411:41.714:47:48.7P
Anchorage, Alaska 77.7311:43.914:47:50.9P
Nairobi, Kenya 84.2812:18.514:48:25.5P
Bergen, Norway 89.9912:46.014:48:53.0P
Rome, Italy 93.8713:03.914:49:10.9P
Seattle, Washington 97.0213:18.214:49:25.2P
London, England 97.2013:18.914:49:25.9P
San Francisco, California 101.7613:39.214:49:46.2Pdiff
Los Angeles, California 106.5214:00.314:50:07.4Pdiff
Golden, Colorado 111.7414:23.514:50:30.5Pdiff
Duluth, Minnesota 112.8814:28.614:50:35.6Pdiff
Albuquerque, New Mexico 113.8614:32.914:50:39.9Pdiff
Wichita, Kansas 117.5114:49.114:50:56.1Pdiff
Ottawa, Canada 119.1914:56.614:51:03.6Pdiff
St. Louis, Missouri 120.3115:01.614:51:08.6Pdiff
Bangor, Maine 121.0215:04.714:51:11.7Pdiff
Boston, Massachusetts 123.0715:13.814:51:20.8Pdiff
New York, New York 124.0515:18.214:51:25.2Pdiff
Philadephia, Pennsylvania 124.5015:20.214:51:27.2Pdiff
Knoxville, Tennessee 124.7915:21.514:51:28.5Pdiff
Washington, D.C. 125.0015:22.414:51:29.4Pdiff
Brownsville, Texas 125.8015:25.914:51:32.9Pdiff
Palmer Station, Antarctica 126.0415:27.014:51:34.0Pdiff
Mexico City, Mexico 128.7415:39.014:51:46.0Pdiff
Miami, Florida 135.7216:10.014:52:17.0Pdiff
San Juan, Puerto Rico 147.1919:26.214:55:33.2PKPdf
Lima, Peru 162.6819:47.214:55:54.2PKPdf

Travel Time Information and Calculator


FirstGov button  Take Pride in America button