Theoretical P-Wave Travel Times

Magnitude 4.7 SANTA CRUZ ISLANDS
Thursday, April 11, 2013 at 22:31:33 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
Brisbane, Australia 20.78 4:27.9 8:22:03.9P
Wellington, New Zealand 31.44 6:05.4 8:23:41.4P
Agana, Guam 31.98 6:10.2 8:23:46.2P
Honolulu, Hawaii 47.61 8:18.8 8:25:54.8P
Tokyo, Japan 52.36 8:54.7 8:26:30.7P
Beijing, China 68.1610:42.1 8:28:18.1P
Anchorage, Alaska 79.5611:48.3 8:29:24.3P
San Francisco, California 82.2412:02.5 8:29:38.5P
Los Angeles, California 84.2912:13.0 8:29:49.0P
Seattle, Washington 85.7912:20.4 8:29:56.4P
Kathmandu, Nepal 86.8512:25.6 8:30:01.6P
Phoenix, Arizona 89.1012:36.2 8:30:12.2P
Albuquerque, New Mexico 93.8512:58.1 8:30:34.1P
Palmer Station, Antarctica 94.0012:58.8 8:30:34.8P
Golden, Colorado 95.7513:06.8 8:30:42.8P
Mexico City, Mexico 97.9113:16.4 8:30:52.4Pdiff
Brownsville, Texas 100.3013:27.1 8:31:03.1Pdiff
Wichita, Kansas 101.6313:32.9 8:31:08.9Pdiff
Duluth, Minnesota 105.7413:51.2 8:31:27.2Pdiff
St. Louis, Missouri 107.2413:57.8 8:31:33.8Pdiff
Knoxville, Tennessee 111.3414:16.0 8:31:52.0Pdiff
Lima, Peru 113.3414:24.9 8:32:00.9Pdiff
Miami, Florida 115.8714:36.1 8:32:12.1Pdiff
Ottawa, Canada 117.2414:42.2 8:32:18.2Pdiff
Washington, D.C. 117.5114:43.4 8:32:19.4Pdiff
Philadelphia, Pennsylvania 118.7614:49.0 8:32:25.0Pdiff
New York, New York 119.4814:52.2 8:32:28.2Pdiff
Moscow, Russia 119.7914:53.5 8:32:29.5Pdiff
Boston, Massachusetts 121.2414:60.0 8:32:36.0Pdiff
Bangor, Maine 122.1515:04.0 8:32:40.0Pdiff
Nairobi, Kenya 128.1415:30.6 8:33:06.6Pdiff
Bergen, Norway 128.3615:31.6 8:33:07.6Pdiff
San Juan, Puerto Rico 129.0215:34.5 8:33:10.5Pdiff
London, England 137.7716:13.3 8:33:49.3Pdiff
Rome, Italy 141.2316:28.7 8:34:04.7Pdiff

Travel Time Information and Calculator

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