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Earthquake Hazards Program

Magnitude 4.8 WESTERN XIZANG

Friday, March 21, 2008 at 20:52:17 UTC

Theoretical P-Wave Travel Times

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 8.09 1:54.920:54:11.9Pn
Beijing, China 28.49 5:51.020:58:08.0P
Moscow, Russia 36.08 6:57.320:59:14.3P
Tokyo, Japan 47.35 8:29.421:00:46.4P
Rome, Italy 52.84 9:11.021:01:28.0P
Bergen, Norway 53.44 9:15.421:01:32.4P
Nairobi, Kenya 54.76 9:25.021:01:42.0P
London, England 58.41 9:51.121:02:08.0P
Agana, Guam 60.9810:08.721:02:25.7P
Anchorage, Alaska 75.6811:40.721:03:57.7P
Brisbane, Australia 92.0813:04.421:05:21.4P
Seattle, Washington 95.0713:18.121:05:35.1P
Bangor, Maine 96.0513:22.621:05:39.6P
Ottawa, Canada 97.3213:28.221:05:45.2P
Duluth, Minnesota 98.4913:33.421:05:50.5Pdiff
Boston, Massachusetts 98.9913:35.721:05:52.7Pdiff
Honolulu, Hawaii 101.0213:44.721:06:01.7Pdiff
New York, New York 101.3113:46.021:06:03.0Pdiff
Philadephia, Pennsylvania 102.3313:50.521:06:07.5Pdiff
Washington, D.C. 103.8013:57.021:06:14.0Pdiff
San Francisco, California 104.5014:00.121:06:17.1Pdiff
Golden, Colorado 105.5014:04.621:06:21.6Pdiff
St. Louis, Missouri 106.3514:08.321:06:25.4Pdiff
Wichita, Kansas 107.6814:14.321:06:31.3Pdiff
Knoxville, Tennessee 108.3414:17.221:06:34.2Pdiff
Los Angeles, California 109.0914:20.521:06:37.5Pdiff
Albuquerque, New Mexico 110.0214:24.621:06:41.6Pdiff
Phoenix, Arizona 110.9214:28.621:06:45.6Pdiff
Wellington, New Zealand 114.5514:44.821:07:01.8Pdiff
Miami, Florida 117.0814:56.021:07:13.0Pdiff
San Juan, Puerto Rico 118.3915:01.821:07:18.8Pdiff
Brownsville, Texas 119.5115:06.821:07:23.8Pdiff
Mexico City, Mexico 125.9815:35.521:07:52.5Pdiff
Palmer Station, Antarctica 141.5416:44.521:09:01.5Pdiff
Lima, Peru 149.7819:39.621:11:56.6PKPdf

Travel Time Information and Calculator

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


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