Theoretical P-Wave Travel Times

Magnitude 7.4 KERMADEC ISLANDS REGION
Friday, October 21, 2011 at 17:57:16 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
Wellington, New Zealand 14.30 3:20.118:00:36.1Pn
Brisbane, Australia 27.16 5:40.218:02:56.2P
Honolulu, Hawaii 53.05 9:13.818:06:29.8P
Agana, Guam 56.63 9:39.718:06:55.7P
Palmer Station, Antarctica 71.3111:16.318:08:32.3P
Tokyo, Japan 76.5511:47.018:09:03.0P
Los Angeles, California 83.2612:23.218:09:39.2P
San Francisco, California 83.3212:23.618:09:39.6P
Phoenix, Arizona 86.8312:41.118:09:57.1P
Mexico City, Mexico 88.4812:49.018:10:05.0P
Seattle, Washington 90.4512:58.218:10:14.2P
Albuquerque, New Mexico 91.4213:02.718:10:18.7P
Lima, Peru 92.0413:05.518:10:21.5P
Anchorage, Alaska 92.4013:07.218:10:23.2P
Beijing, China 92.8213:09.118:10:25.1P
Brownsville, Texas 93.1313:10.618:10:26.6P
Golden, Colorado 94.9913:19.118:10:35.1P
Wichita, Kansas 99.1913:37.918:10:53.9Pdiff
St. Louis, Missouri 104.5614:01.718:11:17.7Pdiff
Duluth, Minnesota 106.7014:11.218:11:27.2Pdiff
Miami, Florida 106.9214:12.218:11:28.2Pdiff
Knoxville, Tennessee 107.1214:13.118:11:29.1Pdiff
Kathmandu, Nepal 109.7414:24.718:11:40.7Pdiff
Washington, D.C. 114.2214:44.618:12:00.6Pdiff
San Juan, Puerto Rico 115.9114:52.118:12:08.1Pdiff
Philadelphia, Pennsylvania 115.9214:52.218:12:08.2Pdiff
New York, New York 116.9814:56.918:12:12.9Pdiff
Ottawa, Canada 117.0214:57.118:12:13.1Pdiff
Boston, Massachusetts 119.5215:08.118:12:24.1Pdiff
Bangor, Maine 121.6915:17.818:12:33.8Pdiff
Nairobi, Kenya 136.3616:22.918:13:38.9Pdiff
Moscow, Russia 144.0016:56.818:14:12.8Pdiff
Bergen, Norway 148.6019:40.418:16:56.4PKPdf
London, England 157.3319:53.518:17:09.5PKPdf
Rome, Italy 165.3420:02.418:17:18.4PKPdf

Travel Time Information and Calculator

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