Link to USGS home page.
Earthquake Hazards Program

Magnitude 4.8 TONGA

Friday, July 06, 2007 at 06:20:38 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 24.87 5:16.9 6:25:54.9P
Brisbane, Australia 31.24 6:13.8 6:26:51.8P
Honolulu, Hawaii 42.44 7:48.7 6:28:26.7P
Agana, Guam 50.89 8:54.8 6:29:32.8P
Tokyo, Japan 68.7510:57.5 6:31:35.5P
San Francisco, California 74.0811:29.6 6:32:07.6P
Los Angeles, California 74.5811:32.5 6:32:10.5P
Phoenix, Arizona 78.5811:55.1 6:32:33.1P
Seattle, Washington 80.5112:05.6 6:32:43.6P
Palmer Station, Antarctica 80.9112:07.7 6:32:45.7P
Anchorage, Alaska 81.4512:10.6 6:32:48.6P
Mexico City, Mexico 82.8712:18.0 6:32:56.0P
Albuquerque, New Mexico 83.3112:20.3 6:32:58.3P
Beijing, China 86.2412:35.0 6:33:13.0P
Golden, Colorado 86.4512:36.0 6:33:14.0P
Brownsville, Texas 86.7012:37.3 6:33:15.3P
Wichita, Kansas 91.2412:58.6 6:33:36.6P
Lima, Peru 93.3213:08.2 6:33:46.2P
St. Louis, Missouri 96.8013:24.0 6:34:02.0P
Duluth, Minnesota 97.9013:28.9 6:34:06.9P
Knoxville, Tennessee 99.9313:37.9 6:34:15.9Pdiff
Miami, Florida 101.4913:44.8 6:34:22.8Pdiff
Kathmandu, Nepal 106.8814:08.8 6:34:46.8Pdiff
Washington, D.C. 106.8814:08.8 6:34:46.8Pdiff
Philadephia, Pennsylvania 108.4814:15.9 6:34:53.9Pdiff
Ottawa, Canada 108.7914:17.3 6:34:55.3Pdiff
New York, New York 109.4614:20.2 6:34:58.2Pdiff
Boston, Massachusetts 111.8114:30.7 6:35:08.7Pdiff
San Juan, Puerto Rico 112.5214:33.8 6:35:11.8Pdiff
Bangor, Maine 113.6514:38.8 6:35:16.8Pdiff
Moscow, Russia 135.1516:14.3 6:36:52.3Pdiff
Bergen, Norway 137.7416:25.8 6:37:03.8Pdiff
Nairobi, Kenya 143.5816:51.7 6:37:29.7Pdiff
London, England 146.3519:32.0 6:40:10.0PKPdf
Rome, Italy 155.5119:46.0 6:40:24.0PKPdf

Travel Time Information and Calculator

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

 


FirstGov button  Take Pride in America button