Theoretical P-Wave Travel Times

Magnitude 7.5 VANUATU
Saturday, August 20, 2011 at 16:55:02 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 16.64 3:50.216:58:52.2Pn
Wellington, New Zealand 23.66 5:07.717:00:09.7P
Agana, Guam 39.02 7:22.517:02:24.5P
Honolulu, Hawaii 51.59 9:02.117:04:04.1P
Tokyo, Japan 59.9710:02.117:05:04.1P
Beijing, China 75.2511:38.617:06:40.6P
San Francisco, California 85.7812:35.017:07:37.0P
Anchorage, Alaska 86.0312:36.217:07:38.2P
Palmer Station, Antarctica 86.2212:37.117:07:39.1P
Los Angeles, California 87.2412:42.117:07:44.1P
Seattle, Washington 90.3912:56.917:07:58.9P
Phoenix, Arizona 91.7713:03.317:08:05.3P
Kathmandu, Nepal 92.1613:05.117:08:07.1P
Albuquerque, New Mexico 96.5613:25.217:08:27.2P
Mexico City, Mexico 98.4013:33.417:08:35.4Pdiff
Golden, Colorado 99.0013:36.117:08:38.1Pdiff
Brownsville, Texas 101.6213:47.717:08:49.7Pdiff
Wichita, Kansas 104.4914:00.517:09:02.5Pdiff
Lima, Peru 109.0414:20.617:09:22.6Pdiff
Duluth, Minnesota 109.6914:23.517:09:25.5Pdiff
St. Louis, Missouri 110.1414:25.517:09:27.5Pdiff
Knoxville, Tennessee 113.8514:42.017:09:44.0Pdiff
Miami, Florida 116.8814:55.417:09:57.4Pdiff
Washington, D.C. 120.4515:11.317:10:13.3Pdiff
Ottawa, Canada 121.1115:14.217:10:16.2Pdiff
Philadelphia, Pennsylvania 121.8815:17.617:10:19.6Pdiff
New York, New York 122.7215:21.417:10:23.4Pdiff
Boston, Massachusetts 124.7715:30.517:10:32.5Pdiff
Bangor, Maine 126.0715:36.217:10:38.2Pdiff
Moscow, Russia 127.2215:41.417:10:43.4Pdiff
Nairobi, Kenya 128.2715:46.017:10:48.0Pdiff
San Juan, Puerto Rico 128.7315:48.017:10:50.0Pdiff
Bergen, Norway 136.1416:21.017:11:23.0Pdiff
London, England 145.5519:33.017:14:35.0PKPbc
Rome, Italy 148.5619:39.317:14:41.3PKPdf

Travel Time Information and Calculator

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