Theoretical P-Wave Travel Times

Friday, July 23, 2010 at 22:08:11 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 4:11.522:12:22.5P
Tokyo, Japan 32.49 5:42.422:13:53.4P
Beijing, China 33.67 5:52.422:14:03.4P
Kathmandu, Nepal 41.73 6:57.622:15:08.6P
Brisbane, Australia 44.40 7:18.322:15:29.3P
Wellington, New Zealand 66.94 9:53.822:18:04.8P
Honolulu, Hawaii 77.1110:52.522:19:03.5P
Moscow, Russia 82.1211:18.622:19:29.6P
Anchorage, Alaska 82.5711:20.922:19:31.9P
Nairobi, Kenya 86.7911:41.322:19:52.3P
Bergen, Norway 97.5912:30.522:20:41.5Pdiff
Rome, Italy 100.8512:44.922:20:55.9Pdiff
Seattle, Washington 100.9212:45.222:20:56.2Pdiff
San Francisco, California 104.5513:01.322:21:12.3Pdiff
London, England 104.6813:01.922:21:12.9Pdiff
Los Angeles, California 109.0613:21.422:21:32.4Pdiff
Phoenix, Arizona 114.0013:43.322:21:54.3Pdiff
Golden, Colorado 115.6113:50.422:22:01.4Pdiff
Albuquerque, New Mexico 117.1713:57.322:22:08.3Pdiff
Duluth, Minnesota 118.1214:01.622:22:12.6Pdiff
Palmer Station, Antarctica 118.8014:04.622:22:15.6Pdiff
Wichita, Kansas 121.7014:17.522:22:28.5Pdiff
St. Louis, Missouri 125.1014:32.522:22:43.5Pdiff
Ottawa, Canada 125.3614:33.722:22:44.7Pdiff
Bangor, Maine 127.5914:43.622:22:54.6Pdiff
Brownsville, Texas 128.7214:48.622:22:59.6Pdiff
Boston, Massachusetts 129.4514:51.922:23:02.9Pdiff
Knoxville, Tennessee 129.7914:53.422:23:04.4Pdiff
New York, New York 130.1814:55.122:23:06.1Pdiff
Philadelphia, Pennsylvania 130.5214:56.622:23:07.6Pdiff
Mexico City, Mexico 130.6714:57.322:23:08.3Pdiff
Washington, D.C. 130.8314:58.022:23:09.0Pdiff
Miami, Florida 140.4015:40.522:23:51.5Pdiff
San Juan, Puerto Rico 153.2618:43.322:26:54.3PKPdf
Lima, Peru 159.0818:51.122:27:02.1PKPdf

Travel Time Information and Calculator

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