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Earthquake Hazards Program

Magnitude 4.7 WESTERN SICHUAN, CHINA

Friday, May 02, 2008 at 15:56:28 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 14.72 3:25.615:59:54.6Pn
Beijing, China 17.26 3:58.016:00:27.0Pn
Tokyo, Japan 33.08 6:31.916:03:00.9P
Agana, Guam 42.27 7:49.416:04:18.4P
Moscow, Russia 53.32 9:15.116:05:44.1P
Nairobi, Kenya 68.6610:59.316:07:28.3P
Bergen, Norway 69.6311:05.316:07:34.3P
Rome, Italy 71.8111:18.616:07:47.6P
Brisbane, Australia 73.4611:28.416:07:57.4P
Anchorage, Alaska 74.4611:34.316:08:03.3P
London, England 75.9811:43.016:08:12.0P
Honolulu, Hawaii 88.9312:50.416:09:19.4P
Seattle, Washington 95.1513:19.116:09:48.1P
Wellington, New Zealand 96.0113:22.916:09:51.9P
San Francisco, California 102.9013:53.616:10:22.6Pdiff
Duluth, Minnesota 105.0114:03.016:10:32.0Pdiff
Ottawa, Canada 107.4014:13.616:10:42.6Pdiff
Bangor, Maine 107.5514:14.316:10:43.3Pdiff
Los Angeles, California 107.9114:15.916:10:44.9Pdiff
Golden, Colorado 108.4814:18.416:10:47.4Pdiff
Boston, Massachusetts 110.2214:26.116:10:55.1Pdiff
Phoenix, Arizona 111.3314:31.016:11:00.0Pdiff
New York, New York 112.0314:34.116:11:03.1Pdiff
Albuquerque, New Mexico 112.1514:34.716:11:03.7Pdiff
Wichita, Kansas 112.6114:36.716:11:05.7Pdiff
Philadephia, Pennsylvania 112.8414:37.716:11:06.7Pdiff
St. Louis, Missouri 113.2014:39.316:11:08.3Pdiff
Washington, D.C. 113.9414:42.616:11:11.6Pdiff
Knoxville, Tennessee 116.5414:54.216:11:23.2Pdiff
Brownsville, Texas 123.7115:26.016:11:55.0Pdiff
Miami, Florida 127.0015:40.616:12:09.6Pdiff
Mexico City, Mexico 129.0815:49.816:12:18.8Pdiff
San Juan, Puerto Rico 132.8416:06.516:12:35.5Pdiff
Palmer Station, Antarctica 138.8316:33.116:13:02.1Pdiff
Lima, Peru 164.6419:59.016:16:28.0PKPdf

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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