Theoretical P-Wave Travel Times

Magnitude 4.5 WESTERN SICHUAN, CHINA
Sunday, April 21, 2013 at 12:37:06 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 14.64 3:27.110:51:50.1Pn
Kathmandu, Nepal 15.67 3:40.710:52:03.7Pn
Tokyo, Japan 31.21 6:19.310:54:42.3P
Agana, Guam 41.93 7:50.510:56:13.5P
Moscow, Russia 51.85 9:08.110:57:31.1P
Bergen, Norway 67.8310:58.210:59:21.2P
Nairobi, Kenya 70.1911:12.910:59:35.9P
Rome, Italy 70.8811:17.010:59:40.0P
Anchorage, Alaska 71.6511:21.710:59:44.7P
London, England 74.4711:38.411:00:01.4P
Brisbane, Australia 74.6911:39.711:00:02.7P
Honolulu, Hawaii 87.0212:45.411:01:08.4P
Seattle, Washington 92.3413:10.411:01:33.4P
Wellington, New Zealand 97.2013:32.511:01:55.5P
San Francisco, California 100.1513:45.611:02:08.6Pdiff
Duluth, Minnesota 102.1813:54.611:02:17.6Pdiff
Ottawa, Canada 104.7214:05.911:02:28.9Pdiff
Bangor, Maine 104.9714:07.011:02:30.0Pdiff
Los Angeles, California 105.1614:07.811:02:30.8Pdiff
Golden, Colorado 105.6314:09.911:02:32.9Pdiff
Boston, Massachusetts 107.6114:18.711:02:41.7Pdiff
Phoenix, Arizona 108.5314:22.811:02:45.8Pdiff
Albuquerque, New Mexico 109.3114:26.311:02:49.3Pdiff
New York, New York 109.3814:26.611:02:49.6Pdiff
Wichita, Kansas 109.7614:28.211:02:51.2Pdiff
Philadelphia, Pennsylvania 110.1714:30.111:02:53.1Pdiff
St. Louis, Missouri 110.3714:31.011:02:54.0Pdiff
Washington, D.C. 111.2514:34.911:02:57.9Pdiff
Knoxville, Tennessee 113.7514:46.011:03:09.0Pdiff
Brownsville, Texas 120.8615:17.511:03:40.5Pdiff
Miami, Florida 124.2615:32.611:03:55.6Pdiff
Mexico City, Mexico 126.2515:41.411:04:04.4Pdiff
San Juan, Puerto Rico 130.4616:00.211:04:23.2Pdiff
Palmer Station, Antarctica 141.6316:49.711:05:12.7Pdiff
Lima, Peru 161.9720:02.711:08:25.7PKPdf

Travel Time Information and Calculator

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