Theoretical P-Wave Travel Times

Saturday, April 21, 2012 at 01:16:54 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 18.25 4:11.0 1:21:05.0P
Brisbane, Australia 31.40 6:18.3 1:23:12.3P
Tokyo, Japan 37.44 7:10.4 1:24:04.4P
Beijing, China 44.42 8:07.9 1:25:01.9P
Wellington, New Zealand 53.79 9:19.6 1:26:13.6P
Kathmandu, Nepal 55.28 9:30.4 1:26:24.4P
Honolulu, Hawaii 70.1211:09.5 1:28:03.5P
Anchorage, Alaska 84.6212:30.6 1:29:24.6P
Moscow, Russia 95.0113:19.6 1:30:13.6P
Nairobi, Kenya 97.3613:30.2 1:30:24.2P
Seattle, Washington 100.2213:42.9 1:30:36.9Pdiff
San Francisco, California 101.5313:48.8 1:30:42.8Pdiff
Los Angeles, California 105.4014:05.9 1:30:59.9Pdiff
Palmer Station, Antarctica 109.5914:24.5 1:31:18.5Pdiff
Bergen, Norway 109.6414:24.7 1:31:18.7Pdiff
Phoenix, Arizona 110.5614:28.8 1:31:22.8Pdiff
Golden, Colorado 114.1914:44.9 1:31:38.9Pdiff
Rome, Italy 114.2814:45.3 1:31:39.3Pdiff
Albuquerque, New Mexico 114.5314:46.4 1:31:40.4Pdiff
London, England 117.3214:58.8 1:31:52.8Pdiff
Duluth, Minnesota 119.6315:09.1 1:32:03.1Pdiff
Wichita, Kansas 120.6315:13.5 1:32:07.5Pdiff
Brownsville, Texas 124.7415:31.8 1:32:25.8Pdiff
Mexico City, Mexico 124.8715:32.4 1:32:26.4Pdiff
St. Louis, Missouri 125.1515:33.6 1:32:27.6Pdiff
Ottawa, Canada 129.0415:50.9 1:32:44.9Pdiff
Knoxville, Tennessee 130.0315:55.2 1:32:49.2Pdiff
Bangor, Maine 132.4316:05.9 1:32:59.9Pdiff
Washington, D.C. 133.1816:09.2 1:33:03.2Pdiff
Philadelphia, Pennsylvania 133.4216:10.3 1:33:04.3Pdiff
New York, New York 133.4416:10.4 1:33:04.4Pdiff
Boston, Massachusetts 133.5416:10.8 1:33:04.8Pdiff
Miami, Florida 139.0916:35.5 1:33:29.5Pdiff
Lima, Peru 146.0719:36.1 1:36:30.1PKPbc
San Juan, Puerto Rico 153.9219:49.2 1:36:43.2PKPdf

Travel Time Information and Calculator

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