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Earthquake Hazards Program

Magnitude 7.7 OFF WEST COAST OF THE SOUTH ISLAND, N.Z.

Wednesday, July 15, 2009 at 09:22:29 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 7.40 1:45.4 9:24:17.4Pn
Brisbane, Australia 21.17 4:42.2 9:27:14.2P
Palmer Station, Antarctica 60.6010:07.0 9:32:39.0P
Agana, Guam 62.1310:17.5 9:32:49.5P
Honolulu, Hawaii 74.1111:32.6 9:34:04.6P
Tokyo, Japan 84.5712:29.6 9:35:01.6P
Beijing, China 96.3813:25.0 9:35:57.0P
Lima, Peru 98.9313:36.4 9:36:08.4Pdiff
Kathmandu, Nepal 103.6613:57.4 9:36:29.4Pdiff
Los Angeles, California 104.3714:00.6 9:36:32.6Pdiff
San Francisco, California 104.7114:02.1 9:36:34.1Pdiff
Mexico City, Mexico 106.5114:10.1 9:36:42.1Pdiff
Phoenix, Arizona 107.6214:15.0 9:36:47.0Pdiff
Seattle, Washington 111.9314:34.1 9:37:06.1Pdiff
Brownsville, Texas 111.9814:34.4 9:37:06.4Pdiff
Albuquerque, New Mexico 112.0514:34.7 9:37:06.7Pdiff
Anchorage, Alaska 112.2214:35.4 9:37:07.4Pdiff
Nairobi, Kenya 115.6314:50.6 9:37:22.6Pdiff
Golden, Colorado 115.9214:51.8 9:37:23.8Pdiff
Wichita, Kansas 119.5615:08.0 9:37:40.0Pdiff
Miami, Florida 123.8515:27.1 9:37:59.1Pdiff
St. Louis, Missouri 124.6315:30.5 9:38:02.5Pdiff
Knoxville, Tennessee 126.4815:38.7 9:38:10.7Pdiff
Duluth, Minnesota 127.7015:44.1 9:38:16.1Pdiff
San Juan, Puerto Rico 128.8315:49.2 9:38:21.2Pdiff
Washington, D.C. 133.5216:10.0 9:38:42.0Pdiff
Philadelphia, Pennsylvania 135.3016:17.9 9:38:49.9Pdiff
New York, New York 136.4416:22.9 9:38:54.9Pdiff
Ottawa, Canada 137.3416:27.0 9:38:59.0Pdiff
Boston, Massachusetts 139.1316:34.9 9:39:06.9Pdiff
Bangor, Maine 141.6516:46.1 9:39:18.1Pdiff
Moscow, Russia 146.8819:37.1 9:42:09.1PKPdf
Rome, Italy 160.9719:57.7 9:42:29.7PKPdf
Bergen, Norway 161.6119:58.4 9:42:30.4PKPdf
London, England 169.5320:05.3 9:42:37.3PKPdf

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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