Theoretical P-Wave Travel Times

Sunday, July 18, 2010 at 13:34:59 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 20.14 4:29.813:39:30.8P
Brisbane, Australia 21.52 4:44.713:39:45.7P
Wellington, New Zealand 41.30 7:40.313:42:41.3P
Tokyo, Japan 42.64 7:51.213:42:52.2P
Beijing, China 55.41 9:29.013:44:30.0P
Honolulu, Hawaii 57.49 9:43.813:44:44.8P
Kathmandu, Nepal 71.1811:13.413:46:14.4P
Anchorage, Alaska 81.2212:10.413:47:11.4P
San Francisco, California 91.3513:00.213:48:01.2P
Seattle, Washington 92.5213:05.613:48:06.6P
Los Angeles, California 94.3813:14.113:48:15.1P
Phoenix, Arizona 99.4813:37.013:48:38.0Pdiff
Palmer Station, Antarctica 102.4713:50.313:48:51.3Pdiff
Albuquerque, New Mexico 103.9713:56.913:48:57.9Pdiff
Golden, Colorado 104.8214:00.713:49:01.7Pdiff
Moscow, Russia 107.6514:13.313:49:14.3Pdiff
Mexico City, Mexico 111.1614:28.813:49:29.8Pdiff
Wichita, Kansas 111.1614:28.913:49:29.9Pdiff
Brownsville, Texas 112.4014:34.413:49:35.4Pdiff
Duluth, Minnesota 112.9314:36.713:49:37.7Pdiff
Nairobi, Kenya 113.3514:38.613:49:39.6Pdiff
St. Louis, Missouri 116.4414:52.313:49:53.3Pdiff
Bergen, Norway 119.7015:06.713:50:07.7Pdiff
Knoxville, Tennessee 121.0715:12.913:50:13.9Pdiff
Ottawa, Canada 123.9615:25.713:50:26.7Pdiff
Washington, D.C. 126.1015:35.113:50:36.1Pdiff
Philadelphia, Pennsylvania 126.9415:38.913:50:39.9Pdiff
New York, New York 127.3615:40.813:50:41.8Pdiff
Miami, Florida 127.8415:42.913:50:43.9Pdiff
Rome, Italy 128.3615:45.213:50:46.2Pdiff
Bangor, Maine 128.4115:45.413:50:46.4Pdiff
Boston, Massachusetts 128.4215:45.513:50:46.5Pdiff
London, England 128.5215:45.913:50:46.9Pdiff
Lima, Peru 129.4515:50.013:50:51.0Pdiff
San Juan, Puerto Rico 142.2316:46.813:51:47.8Pdiff

Travel Time Information and Calculator

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