Theoretical P-Wave Travel Times

Saturday, March 03, 2012 at 12:19:55 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
Brisbane, Australia 16.59 3:52.012:23:47.0Pn
Wellington, New Zealand 19.43 4:25.812:24:20.8P
Agana, Guam 43.38 8:01.612:27:56.6P
Honolulu, Hawaii 53.22 9:17.512:29:12.6P
Tokyo, Japan 64.3810:35.312:30:30.3P
Beijing, China 79.5912:06.512:32:01.5P
Palmer Station, Antarctica 81.8812:18.712:32:13.7P
San Francisco, California 86.8312:43.812:32:38.8P
Los Angeles, California 87.9312:49.112:32:44.1P
Anchorage, Alaska 89.0412:54.312:32:49.3P
Seattle, Washington 92.0813:08.512:33:03.5P
Phoenix, Arizona 92.2513:09.212:33:04.2P
Kathmandu, Nepal 95.8413:25.612:33:20.6P
Albuquerque, New Mexico 97.0413:31.012:33:26.0P
Mexico City, Mexico 97.5713:33.412:33:28.4P
Golden, Colorado 99.7913:43.312:33:38.3Pdiff
Brownsville, Texas 101.2213:49.612:33:44.6Pdiff
Wichita, Kansas 105.0014:06.412:34:01.4Pdiff
Lima, Peru 105.7114:09.612:34:04.6Pdiff
St. Louis, Missouri 110.6214:31.412:34:26.4Pdiff
Duluth, Minnesota 110.8314:32.312:34:27.3Pdiff
Knoxville, Tennessee 114.0614:46.612:34:41.6Pdiff
Miami, Florida 116.1714:56.012:34:51.0Pdiff
Washington, D.C. 120.8615:16.812:35:11.8Pdiff
Ottawa, Canada 122.1015:22.312:35:17.3Pdiff
Philadelphia, Pennsylvania 122.3815:23.612:35:18.6Pdiff
New York, New York 123.2915:27.612:35:22.6Pdiff
Boston, Massachusetts 125.4915:37.412:35:32.4Pdiff
Bangor, Maine 127.0415:44.212:35:39.2Pdiff
San Juan, Puerto Rico 127.1815:44.912:35:39.9Pdiff
Nairobi, Kenya 129.0115:53.012:35:48.0Pdiff
Moscow, Russia 131.6216:04.612:35:59.6Pdiff
Bergen, Norway 140.3816:43.412:36:38.4Pdiff
London, England 149.7919:45.112:39:40.1PKPdf
Rome, Italy 152.9319:50.112:39:45.1PKPdf

Travel Time Information and Calculator

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