Link to USGS home page.
Earthquake Hazards Program

Theoretical P-Wave Travel Times

2004 July 25 14:35:19 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
Kathmandu, Nepal 34.93 6:04.114:41:22.1P
Agana, Guam 43.44 7:12.414:42:30.4P
Beijing, China 43.67 7:14.214:42:32.2P
Tokyo, Japan 50.55 8:05.714:43:23.7P
Brisbane, Australia 53.04 8:23.614:43:41.6P
Nairobi, Kenya 67.10 9:56.614:45:14.6P
Wellington, New Zealand 74.0310:37.414:45:55.4P
Moscow, Russia 78.9011:03.914:46:21.9P
Rome, Italy 92.7012:10.614:47:28.6P
Bergen, Norway 96.3812:27.114:47:45.1Pdiff
Honolulu, Hawaii 98.5312:36.714:47:54.7Pdiff
Anchorage, Alaska 99.8712:42.614:48:00.6Pdiff
London, England 100.6912:46.214:48:04.2Pdiff
Palmer Station, Antarctica 109.4413:25.114:48:43.1Pdiff
Seattle, Washington 119.7914:11.014:49:29.0Pdiff
San Francisco, California 124.8914:33.714:49:51.7Pdiff
Los Angeles, California 129.6514:54.814:50:12.8Pdiff
Duluth, Minnesota 133.6915:12.714:50:30.7Pdiff
Golden, Colorado 134.4015:15.914:50:33.9Pdiff
Albuquerque, New Mexico 136.8515:26.814:50:44.8Pdiff
Ottawa, Canada 137.2015:28.314:50:46.3Pdiff
Bangor, Maine 137.3315:28.914:50:46.9Pdiff
Wichita, Kansas 139.7815:39.814:50:57.8Pdiff
Boston, Massachusetts 140.0415:40.914:50:58.9Pdiff
St. Louis, Missouri 141.6815:48.214:51:06.2Pdiff
New York, New York 141.8615:49.014:51:07.0Pdiff
Philadephia, Pennsylvania 142.6615:52.514:51:10.5Pdiff
Washington, D.C. 143.7115:57.214:51:15.2Pdiff
Knoxville, Tennessee 145.6118:32.114:53:50.1PKPdf
Brownsville, Texas 148.8618:37.414:53:55.4PKPdf
Mexico City, Mexico 151.7918:41.814:53:59.8PKPdf
Miami, Florida 156.4718:48.314:54:06.3PKPdf
San Juan, Puerto Rico 161.3318:54.014:54:12.0PKPdf
Lima, Peru 165.5218:57.914:54:15.9PKPdf

Travel Time Information and Calculator


FirstGov button  Take Pride in America button