Theoretical P-Wave Travel Times

Magnitude 6.6 WESTERN SICHUAN, CHINA
Saturday, April 20, 2013 at 00:28:50 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
(degrees)
Travel Time
(min:secs)
Arrival Time
UTC
Phase
Beijing, China 14.61 3:26.0 0:06:14.0Pn
Kathmandu, Nepal 15.63 3:39.5 0:06:27.5Pn
Tokyo, Japan 31.22 6:18.5 0:09:06.5P
Agana, Guam 42.00 7:50.2 0:10:38.2P
Moscow, Russia 51.76 9:06.5 0:11:54.5P
Bergen, Norway 67.7310:56.6 0:13:44.6P
Nairobi, Kenya 70.1711:11.8 0:13:59.8P
Rome, Italy 70.7911:15.6 0:14:03.6P
Anchorage, Alaska 71.5911:20.5 0:14:08.5P
London, England 74.3711:36.9 0:14:24.9P
Brisbane, Australia 74.7811:39.3 0:14:27.3P
Honolulu, Hawaii 87.0212:44.5 0:15:32.5P
Seattle, Washington 92.2813:09.2 0:15:57.2P
Wellington, New Zealand 97.2913:32.0 0:16:20.0P
San Francisco, California 100.1013:44.5 0:16:32.5Pdiff
Duluth, Minnesota 102.1013:53.4 0:16:41.4Pdiff
Ottawa, Canada 104.6314:04.6 0:16:52.6Pdiff
Bangor, Maine 104.8814:05.7 0:16:53.7Pdiff
Los Angeles, California 105.1114:06.7 0:16:54.7Pdiff
Golden, Colorado 105.5614:08.7 0:16:56.7Pdiff
Boston, Massachusetts 107.5214:17.4 0:17:05.4Pdiff
Phoenix, Arizona 108.4814:21.6 0:17:09.6Pdiff
Albuquerque, New Mexico 109.2514:25.1 0:17:13.1Pdiff
New York, New York 109.2914:25.2 0:17:13.2Pdiff
Wichita, Kansas 109.6814:27.0 0:17:15.0Pdiff
Philadelphia, Pennsylvania 110.0814:28.8 0:17:16.8Pdiff
St. Louis, Missouri 110.2914:29.7 0:17:17.7Pdiff
Washington, D.C. 111.1614:33.6 0:17:21.6Pdiff
Knoxville, Tennessee 113.6614:44.7 0:17:32.7Pdiff
Brownsville, Texas 120.7915:16.3 0:18:04.3Pdiff
Miami, Florida 124.1715:31.3 0:18:19.3Pdiff
Mexico City, Mexico 126.1915:40.3 0:18:28.3Pdiff
San Juan, Puerto Rico 130.3715:58.8 0:18:46.8Pdiff
Palmer Station, Antarctica 141.7116:49.2 0:19:37.2Pdiff
Lima, Peru 161.8820:01.6 0:22:49.6PKPdf

Travel Time Information and Calculator

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