Theoretical P-Wave Travel Times

Friday, September 07, 2012 at 03:19:45 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 16.08 3:43.8 3:23:28.8Pn
Kathmandu, Nepal 16.59 3:50.2 3:23:35.2Pn
Tokyo, Japan 31.36 6:17.7 3:26:02.7P
Agana, Guam 40.43 7:35.3 3:27:20.3P
Moscow, Russia 54.50 9:24.6 3:29:09.6P
Nairobi, Kenya 70.4911:11.6 3:30:56.6P
Bergen, Norway 70.6011:12.3 3:30:57.3P
Brisbane, Australia 72.1311:21.5 3:31:06.5P
Rome, Italy 73.2711:28.2 3:31:13.2P
Anchorage, Alaska 73.5511:29.9 3:31:14.9P
London, England 77.1411:50.6 3:31:35.6P
Honolulu, Hawaii 87.2012:43.1 3:32:28.1P
Seattle, Washington 94.2413:15.9 3:33:00.9P
Wellington, New Zealand 94.6713:17.8 3:33:02.8P
San Francisco, California 101.8113:49.8 3:33:34.8Pdiff
Duluth, Minnesota 104.6514:02.4 3:33:47.4Pdiff
Los Angeles, California 106.8314:12.1 3:33:57.1Pdiff
Ottawa, Canada 107.4214:14.7 3:33:59.7Pdiff
Bangor, Maine 107.7414:16.1 3:34:01.1Pdiff
Golden, Colorado 107.7514:16.2 3:34:01.2Pdiff
Boston, Massachusetts 110.3614:27.7 3:34:12.7Pdiff
Phoenix, Arizona 110.3614:27.7 3:34:12.7Pdiff
Albuquerque, New Mexico 111.3314:32.0 3:34:17.0Pdiff
Wichita, Kansas 112.0414:35.2 3:34:20.2Pdiff
New York, New York 112.1014:35.5 3:34:20.5Pdiff
St. Louis, Missouri 112.8314:38.7 3:34:23.7Pdiff
Philadelphia, Pennsylvania 112.8814:38.9 3:34:23.9Pdiff
Washington, D.C. 113.9314:43.6 3:34:28.6Pdiff
Knoxville, Tennessee 116.2914:54.0 3:34:39.0Pdiff
Brownsville, Texas 122.9915:23.8 3:35:08.8Pdiff
Miami, Florida 126.8815:41.0 3:35:26.0Pdiff
Mexico City, Mexico 128.2215:47.0 3:35:32.0Pdiff
San Juan, Puerto Rico 133.2916:09.5 3:35:54.5Pdiff
Palmer Station, Antarctica 139.0816:35.2 3:36:20.2Pdiff
Lima, Peru 164.6320:02.1 3:39:47.1PKPdf

Travel Time Information and Calculator

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