Theoretical P-Wave Travel Times

Magnitude 7.0 VANUATU
Saturday, August 20, 2011 at 18:19:21 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
Travel Time
Arrival Time
Brisbane, Australia 16.66 3:54.618:23:15.6Pn
Wellington, New Zealand 23.56 5:11.918:24:32.9P
Agana, Guam 39.13 7:28.818:26:49.8P
Honolulu, Hawaii 51.60 9:07.618:28:28.6P
Tokyo, Japan 60.0810:08.518:29:29.5P
Beijing, China 75.3611:45.018:31:06.0P
San Francisco, California 85.7712:40.818:32:01.8P
Anchorage, Alaska 86.0812:42.318:32:03.3P
Palmer Station, Antarctica 86.1212:42.518:32:03.5P
Los Angeles, California 87.2212:47.918:32:08.9P
Seattle, Washington 90.3913:02.818:32:23.9P
Phoenix, Arizona 91.7413:09.118:32:30.1P
Kathmandu, Nepal 92.2713:11.518:32:32.5P
Albuquerque, New Mexico 96.5313:31.018:32:52.0P
Mexico City, Mexico 98.3413:39.118:33:00.1P
Golden, Colorado 98.9913:41.918:33:02.9Pdiff
Brownsville, Texas 101.5713:53.418:33:14.4Pdiff
Wichita, Kansas 104.4714:06.318:33:27.3Pdiff
Lima, Peru 108.9314:26.118:33:47.1Pdiff
Duluth, Minnesota 109.6814:29.418:33:50.4Pdiff
St. Louis, Missouri 110.1214:31.318:33:52.3Pdiff
Knoxville, Tennessee 113.8214:47.818:34:08.8Pdiff
Miami, Florida 116.8315:01.118:34:22.1Pdiff
Washington, D.C. 120.4315:17.118:34:38.1Pdiff
Ottawa, Canada 121.1015:20.118:34:41.1Pdiff
Philadelphia, Pennsylvania 121.8615:23.518:34:44.5Pdiff
New York, New York 122.7015:27.218:34:48.2Pdiff
Boston, Massachusetts 124.7515:36.318:34:57.3Pdiff
Bangor, Maine 126.0615:42.118:35:03.1Pdiff
Moscow, Russia 127.3315:47.818:35:08.8Pdiff
Nairobi, Kenya 128.3315:52.218:35:13.2Pdiff
San Juan, Puerto Rico 128.6615:53.618:35:14.6Pdiff
Bergen, Norway 136.2416:27.318:35:48.3Pdiff
London, England 145.6519:39.418:39:00.4PKPbc
Rome, Italy 148.6819:45.618:39:06.6PKPdf

Travel Time Information and Calculator

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