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Earthquake Hazards Program

Magnitude 6.6 SAMOA ISLANDS REGION

Sunday, August 30, 2009 at 14:51:32 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
Wellington, New Zealand 28.23 5:53.014:57:26.0P
Brisbane, Australia 34.18 6:45.414:58:18.4P
Honolulu, Hawaii 39.04 7:26.814:58:59.8P
Agana, Guam 50.87 9:00.915:00:33.9P
Tokyo, Japan 67.7210:57.615:02:30.6P
San Francisco, California 70.6511:15.815:02:48.8P
Los Angeles, California 71.2011:19.115:02:52.1P
Phoenix, Arizona 75.2611:43.115:03:16.1P
Seattle, Washington 77.0611:53.315:03:26.3P
Anchorage, Alaska 78.2411:60.015:03:33.0P
Albuquerque, New Mexico 80.0012:09.615:03:42.6P
Mexico City, Mexico 80.0012:09.615:03:42.6P
Palmer Station, Antarctica 82.9212:25.015:03:58.0P
Golden, Colorado 83.0812:25.915:03:58.9P
Brownsville, Texas 83.6612:28.815:04:01.8P
Beijing, China 85.6212:38.715:04:11.7P
Wichita, Kansas 87.9412:50.015:04:23.0P
Lima, Peru 92.1513:09.715:04:42.7P
St. Louis, Missouri 93.5113:15.915:04:48.9P
Duluth, Minnesota 94.5013:20.415:04:53.4P
Knoxville, Tennessee 96.7213:30.515:05:03.5P
Miami, Florida 98.5913:38.815:05:11.8Pdiff
Washington, D.C. 103.6414:01.215:05:34.2Pdiff
Philadelphia, Pennsylvania 105.2214:08.315:05:41.3Pdiff
Ottawa, Canada 105.4414:09.215:05:42.2Pdiff
New York, New York 106.1914:12.515:05:45.6Pdiff
Kathmandu, Nepal 107.4014:17.915:05:50.9Pdiff
Boston, Massachusetts 108.5114:22.915:05:55.9Pdiff
San Juan, Puerto Rico 110.0014:29.515:06:02.5Pdiff
Bangor, Maine 110.3114:30.815:06:03.8Pdiff
Moscow, Russia 133.2916:12.815:07:45.8Pdiff
Bergen, Norway 134.8216:19.715:07:52.7Pdiff
London, England 143.2516:57.115:08:30.1Pdiff
Nairobi, Kenya 146.6019:40.715:11:13.7PKPdf
Rome, Italy 153.0119:51.115:11:24.1PKPdf

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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