Theoretical P-Wave Travel Times

Magnitude 4.4 EASTERN SICHUAN, CHINA
Saturday, April 20, 2013 at 14:09:18 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 14.40 3:23.8 9:48:36.8Pn
Kathmandu, Nepal 15.80 3:42.5 9:48:55.5Pn
Tokyo, Japan 31.02 6:17.8 9:51:30.8P
Agana, Guam 41.88 7:50.2 9:53:03.2P
Moscow, Russia 51.75 9:07.4 9:54:20.4P
Bergen, Norway 67.6910:57.4 9:56:10.4P
Nairobi, Kenya 70.3611:14.0 9:56:27.0P
Rome, Italy 70.8211:16.8 9:56:29.8P
Anchorage, Alaska 71.3911:20.2 9:56:33.2P
London, England 74.3611:37.9 9:56:50.9P
Brisbane, Australia 74.7811:40.3 9:56:53.3P
Honolulu, Hawaii 86.8212:44.6 9:57:57.6P
Seattle, Washington 92.0713:09.3 9:58:22.3P
Wellington, New Zealand 97.2813:33.0 9:58:46.0P
San Francisco, California 99.8913:44.6 9:58:57.6Pdiff
Duluth, Minnesota 101.9313:53.6 9:59:06.6Pdiff
Ottawa, Canada 104.4914:05.0 9:59:18.0Pdiff
Bangor, Maine 104.7414:06.1 9:59:19.1Pdiff
Los Angeles, California 104.9014:06.8 9:59:19.8Pdiff
Golden, Colorado 105.3614:08.9 9:59:21.9Pdiff
Boston, Massachusetts 107.3814:17.8 9:59:30.8Pdiff
Phoenix, Arizona 108.2714:21.8 9:59:34.8Pdiff
Albuquerque, New Mexico 109.0514:25.2 9:59:38.2Pdiff
New York, New York 109.1414:25.7 9:59:38.7Pdiff
Wichita, Kansas 109.5014:27.2 9:59:40.2Pdiff
Philadelphia, Pennsylvania 109.9414:29.2 9:59:42.2Pdiff
St. Louis, Missouri 110.1214:30.0 9:59:43.0Pdiff
Washington, D.C. 111.0114:33.9 9:59:46.9Pdiff
Knoxville, Tennessee 113.4914:45.0 9:59:58.0Pdiff
Brownsville, Texas 120.5915:16.510:00:29.5Pdiff
Miami, Florida 124.0115:31.710:00:44.7Pdiff
Mexico City, Mexico 125.9815:40.410:00:53.4Pdiff
San Juan, Puerto Rico 130.2615:59.410:01:12.4Pdiff
Palmer Station, Antarctica 141.8816:51.010:02:04.0Pdiff
Lima, Peru 161.7320:02.510:05:15.5PKPdf

Travel Time Information and Calculator

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