Theoretical P-Wave Travel Times

Sunday, July 31, 2011 at 23:38:57 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 16.92 3:56.023:42:53.0Pn
Brisbane, Australia 25.04 5:23.223:44:20.2P
Tokyo, Japan 39.32 7:28.023:46:25.0P
Wellington, New Zealand 46.17 8:23.623:47:20.6P
Beijing, China 50.53 8:57.223:47:54.2P
Honolulu, Hawaii 61.3110:14.523:49:11.5P
Kathmandu, Nepal 65.1510:40.023:49:37.0P
Anchorage, Alaska 81.4912:16.423:51:13.4P
San Francisco, California 94.3313:18.523:52:15.5P
Seattle, Washington 94.5313:19.423:52:16.4P
Los Angeles, California 97.7213:33.823:52:30.8P
Moscow, Russia 102.5513:55.323:52:52.3Pdiff
Phoenix, Arizona 102.8813:56.723:52:53.7Pdiff
Palmer Station, Antarctica 105.9814:10.523:53:07.5Pdiff
Albuquerque, New Mexico 107.1914:15.923:53:12.9Pdiff
Golden, Colorado 107.5814:17.623:53:14.6Pdiff
Nairobi, Kenya 107.8814:18.923:53:15.9Pdiff
Wichita, Kansas 114.0114:46.223:53:43.2Pdiff
Duluth, Minnesota 114.7514:49.423:53:46.4Pdiff
Bergen, Norway 115.5214:52.823:53:49.8Pdiff
Mexico City, Mexico 115.6814:53.523:53:50.5Pdiff
Brownsville, Texas 116.3714:56.623:53:53.6Pdiff
St. Louis, Missouri 119.0615:08.523:54:05.5Pdiff
Rome, Italy 122.9015:25.623:54:22.6Pdiff
Knoxville, Tennessee 123.8315:29.723:54:26.7Pdiff
London, England 124.0215:30.623:54:27.6Pdiff
Ottawa, Canada 125.3115:36.323:54:33.3Pdiff
Washington, D.C. 128.2215:49.223:54:46.2Pdiff
Philadelphia, Pennsylvania 128.8515:52.023:54:49.0Pdiff
New York, New York 129.1315:53.323:54:50.3Pdiff
Bangor, Maine 129.4415:54.623:54:51.6Pdiff
Boston, Massachusetts 129.8615:56.523:54:53.5Pdiff
Miami, Florida 131.5216:03.923:55:00.9Pdiff
Lima, Peru 135.5516:21.723:55:18.7Pdiff
San Juan, Puerto Rico 146.2719:38.823:58:35.8PKPbc

Travel Time Information and Calculator

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