Theoretical P-Wave Travel Times


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
Wellington, New Zealand 12.63 2:52.8 3:23:21.8Pn
Brisbane, Australia 24.76 5:03.4 3:25:32.4P
Honolulu, Hawaii 54.64 9:08.1 3:29:37.1P
Agana, Guam 55.43 9:13.8 3:29:42.8P
Palmer Station, Antarctica 71.5210:59.3 3:31:28.3P
Tokyo, Japan 75.7911:24.2 3:31:53.2P
San Francisco, California 85.4112:15.1 3:32:44.1P
Los Angeles, California 85.4612:15.4 3:32:44.4P
Phoenix, Arizona 89.0912:32.7 3:33:01.7P
Mexico City, Mexico 90.9412:41.3 3:33:10.3P
Beijing, China 91.6612:44.6 3:33:13.6P
Seattle, Washington 92.3512:47.8 3:33:16.8P
Anchorage, Alaska 93.6312:53.7 3:33:22.7P
Albuquerque, New Mexico 93.7112:54.0 3:33:23.0P
Lima, Peru 94.1212:55.9 3:33:24.9P
Brownsville, Texas 95.5613:02.4 3:33:31.4P
Golden, Colorado 97.2213:09.9 3:33:38.9P
Wichita, Kansas 101.5113:28.9 3:33:57.9Pdiff
St. Louis, Missouri 106.9013:52.9 3:34:21.9Pdiff
Kathmandu, Nepal 107.8113:56.9 3:34:25.9Pdiff
Duluth, Minnesota 108.9014:01.7 3:34:30.7Pdiff
Miami, Florida 109.3914:03.9 3:34:32.9Pdiff
Knoxville, Tennessee 109.5214:04.5 3:34:33.5Pdiff
Washington, D.C. 116.6014:35.9 3:35:04.9Pdiff
Philadelphia, Pennsylvania 118.3014:43.5 3:35:12.5Pdiff
San Juan, Puerto Rico 118.3414:43.7 3:35:12.7Pdiff
Ottawa, Canada 119.3214:48.0 3:35:17.0Pdiff
New York, New York 119.3614:48.2 3:35:17.2Pdiff
Boston, Massachusetts 121.8814:59.4 3:35:28.4Pdiff
Bangor, Maine 124.0115:08.8 3:35:37.8Pdiff
Nairobi, Kenya 134.0415:53.3 3:36:22.3Pdiff
Moscow, Russia 143.3016:34.4 3:37:03.4Pdiff
Bergen, Norway 149.2119:21.1 3:39:50.1PKPdf
London, England 158.2219:34.4 3:40:03.4PKPdf
Rome, Italy 164.7619:41.6 3:40:10.6PKPdf

Travel Time Information and Calculator

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