Theoretical P-Wave Travel Times

Friday, July 23, 2010 at 22:51:12 UTC

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 22.01 4:12.822:55:23.8P
Tokyo, Japan 32.64 5:45.322:56:56.3P
Beijing, China 33.89 5:55.822:57:06.8P
Kathmandu, Nepal 41.92 7:00.922:58:11.9P
Brisbane, Australia 44.19 7:18.522:58:29.5P
Wellington, New Zealand 66.73 9:54.723:01:05.7P
Honolulu, Hawaii 77.1110:54.923:02:05.9P
Moscow, Russia 82.3411:22.223:02:33.2P
Anchorage, Alaska 82.7111:24.023:02:35.0P
Nairobi, Kenya 86.8611:44.123:02:55.1P
Bergen, Norway 97.8212:34.023:03:45.0Pdiff
Seattle, Washington 101.0312:48.323:03:59.3Pdiff
Rome, Italy 101.0612:48.423:03:59.4Pdiff
San Francisco, California 104.6313:04.223:04:15.2Pdiff
London, England 104.9013:05.423:04:16.4Pdiff
Los Angeles, California 109.1313:24.223:04:35.2Pdiff
Phoenix, Arizona 114.0713:46.123:04:57.1Pdiff
Golden, Colorado 115.7213:53.523:05:04.5Pdiff
Albuquerque, New Mexico 117.2614:00.323:05:11.3Pdiff
Duluth, Minnesota 118.2714:04.823:05:15.8Pdiff
Palmer Station, Antarctica 118.5814:06.223:05:17.2Pdiff
Wichita, Kansas 121.8214:20.523:05:31.5Pdiff
St. Louis, Missouri 125.2314:35.723:05:46.7Pdiff
Ottawa, Canada 125.5414:37.123:05:48.1Pdiff
Bangor, Maine 127.7814:47.023:05:58.0Pdiff
Brownsville, Texas 128.7914:51.523:06:02.5Pdiff
Boston, Massachusetts 129.6314:55.223:06:06.2Pdiff
Knoxville, Tennessee 129.9314:56.523:06:07.5Pdiff
New York, New York 130.3514:58.423:06:09.4Pdiff
Philadelphia, Pennsylvania 130.6914:59.923:06:10.9Pdiff
Mexico City, Mexico 130.7115:00.023:06:11.0Pdiff
Washington, D.C. 130.9915:01.323:06:12.3Pdiff
Miami, Florida 140.5315:43.623:06:54.6Pdiff
San Juan, Puerto Rico 153.4318:46.323:09:57.3PKPdf
Lima, Peru 158.9418:53.723:10:04.7PKPdf

Travel Time Information and Calculator

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