Theoretical P-Wave Travel Times

Friday, July 23, 2010 at 23:15:10 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 22.16 4:12.223:19:20.2P
Tokyo, Japan 32.51 5:41.923:20:49.9P
Beijing, China 33.59 5:50.923:20:58.9P
Kathmandu, Nepal 41.55 6:55.423:22:03.4P
Brisbane, Australia 44.56 7:18.723:22:26.7P
Wellington, New Zealand 67.10 9:53.723:25:01.7P
Honolulu, Hawaii 77.2610:52.223:26:00.2P
Moscow, Russia 81.9711:16.823:26:24.8P
Anchorage, Alaska 82.6011:19.923:26:27.9P
Nairobi, Kenya 86.6111:39.323:26:47.3P
Bergen, Norway 97.4612:28.723:27:36.7Pdiff
Rome, Italy 100.6812:43.023:27:51.0Pdiff
Seattle, Washington 100.9912:44.423:27:52.4Pdiff
London, England 104.5413:00.123:28:08.1Pdiff
San Francisco, California 104.6513:00.623:28:08.6Pdiff
Los Angeles, California 109.1613:20.723:28:28.7Pdiff
Phoenix, Arizona 114.0913:42.523:28:50.5Pdiff
Golden, Colorado 115.6813:49.623:28:57.6Pdiff
Albuquerque, New Mexico 117.2513:56.623:29:04.6Pdiff
Duluth, Minnesota 118.1514:00.523:29:08.5Pdiff
Palmer Station, Antarctica 118.8714:03.723:29:11.7Pdiff
Wichita, Kansas 121.7714:16.623:29:24.6Pdiff
St. Louis, Missouri 125.1414:31.623:29:39.6Pdiff
Ottawa, Canada 125.3614:32.523:29:40.5Pdiff
Bangor, Maine 127.5614:42.323:29:50.3Pdiff
Brownsville, Texas 128.8114:47.923:29:55.9Pdiff
Boston, Massachusetts 129.4314:50.623:29:58.6Pdiff
Knoxville, Tennessee 129.8214:52.423:30:00.4Pdiff
New York, New York 130.1714:53.923:30:01.9Pdiff
Philadelphia, Pennsylvania 130.5214:55.423:30:03.4Pdiff
Mexico City, Mexico 130.7914:56.623:30:04.6Pdiff
Washington, D.C. 130.8414:56.923:30:04.9Pdiff
Miami, Florida 140.4615:39.623:30:47.6Pdiff
San Juan, Puerto Rico 153.2718:42.023:33:50.0PKPdf
Lima, Peru 159.2718:50.023:33:58.0PKPdf

Travel Time Information and Calculator

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