Theoretical P-Wave Travel Times

Saturday, April 20, 2013 at 18:52:34 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
Beijing, China 14.47 3:22.218:35:34.2Pn
Kathmandu, Nepal 15.80 3:39.718:35:51.7Pn
Tokyo, Japan 31.05 6:14.518:38:26.5P
Agana, Guam 41.85 7:46.318:39:58.3P
Moscow, Russia 51.83 9:04.418:41:16.4P
Bergen, Norway 67.7910:54.218:43:06.2P
Nairobi, Kenya 70.3411:10.118:43:22.1P
Rome, Italy 70.8911:13.418:43:25.4P
Anchorage, Alaska 71.4811:17.018:43:29.0P
London, England 74.4511:34.518:43:46.5P
Brisbane, Australia 74.6911:36.018:43:48.0P
Honolulu, Hawaii 86.8512:40.818:44:52.8P
Seattle, Washington 92.1613:05.818:45:17.8P
Wellington, New Zealand 97.2013:28.718:45:40.7P
San Francisco, California 99.9813:41.018:45:53.0Pdiff
Duluth, Minnesota 102.0313:50.218:46:02.2Pdiff
Ottawa, Canada 104.6014:01.518:46:13.5Pdiff
Bangor, Maine 104.8514:02.718:46:14.7Pdiff
Los Angeles, California 104.9914:03.318:46:15.3Pdiff
Golden, Colorado 105.4614:05.418:46:17.4Pdiff
Boston, Massachusetts 107.4914:14.418:46:26.4Pdiff
Phoenix, Arizona 108.3614:18.218:46:30.2Pdiff
Albuquerque, New Mexico 109.1514:21.718:46:33.7Pdiff
New York, New York 109.2514:22.218:46:34.2Pdiff
Wichita, Kansas 109.6014:23.718:46:35.7Pdiff
Philadelphia, Pennsylvania 110.0514:25.718:46:37.7Pdiff
St. Louis, Missouri 110.2214:26.518:46:38.5Pdiff
Washington, D.C. 111.1214:30.518:46:42.5Pdiff
Knoxville, Tennessee 113.6014:41.518:46:53.5Pdiff
Brownsville, Texas 120.6915:13.018:47:25.0Pdiff
Miami, Florida 124.1215:28.218:47:40.2Pdiff
Mexico City, Mexico 126.0815:36.918:47:48.9Pdiff
San Juan, Puerto Rico 130.3715:55.918:48:07.9Pdiff
Palmer Station, Antarctica 141.7816:46.618:48:58.6Pdiff
Lima, Peru 161.8419:58.618:52:10.6PKPdf

Travel Time Information and Calculator

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