Theoretical P-Wave Travel Times

Magnitude 4.5 SOUTHERN QINGHAI, CHINA
Monday, March 25, 2013 at 12:28:50 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
Kathmandu, Nepal 10.34 2:28.312:31:18.3Pn
Beijing, China 18.11 4:11.612:33:01.6Pn
Tokyo, Japan 36.41 7:04.512:35:54.5P
Moscow, Russia 45.25 8:17.412:37:07.4P
Agana, Guam 48.93 8:46.112:37:36.1P
Bergen, Norway 61.7010:18.212:39:08.2P
Rome, Italy 63.8310:32.512:39:22.5P
Nairobi, Kenya 64.8810:39.412:39:29.4P
London, England 67.9110:58.812:39:48.8P
Anchorage, Alaska 72.0011:23.912:40:13.9P
Brisbane, Australia 81.5312:17.812:41:07.8P
Honolulu, Hawaii 91.5913:07.112:41:57.1P
Seattle, Washington 92.4513:11.012:42:01.0P
Duluth, Minnesota 100.0113:45.112:42:35.1Pdiff
Bangor, Maine 100.9213:49.212:42:39.2Pdiff
San Francisco, California 100.9913:49.512:42:39.5Pdiff
Ottawa, Canada 101.2213:50.512:42:40.5Pdiff
Boston, Massachusetts 103.7014:01.512:42:51.5Pdiff
Wellington, New Zealand 104.0814:03.212:42:53.2Pdiff
Golden, Colorado 104.8414:06.612:42:56.6Pdiff
New York, New York 105.6914:10.312:43:00.3Pdiff
Los Angeles, California 105.9114:11.312:43:01.3Pdiff
Philadelphia, Pennsylvania 106.5714:14.312:43:04.3Pdiff
Washington, D.C. 107.8114:19.712:43:09.7Pdiff
St. Louis, Missouri 108.1914:21.412:43:11.4Pdiff
Wichita, Kansas 108.2914:21.912:43:11.9Pdiff
Phoenix, Arizona 108.7414:23.912:43:13.9Pdiff
Albuquerque, New Mexico 108.8914:24.612:43:14.6Pdiff
Knoxville, Tennessee 111.0914:34.312:43:24.3Pdiff
Brownsville, Texas 119.8415:13.212:44:03.2Pdiff
Miami, Florida 121.0915:18.712:44:08.7Pdiff
San Juan, Puerto Rico 125.5515:38.512:44:28.5Pdiff
Mexico City, Mexico 125.7515:39.412:44:29.4Pdiff
Palmer Station, Antarctica 143.5116:58.212:45:48.2Pdiff
Lima, Peru 157.7719:57.812:48:47.8PKPdf

Travel Time Information and Calculator

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