Theoretical P-Wave Travel Times

Wednesday, January 30, 2013 at 13:25:32 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
Agana, Guam 17.70 4:03.713:01:53.7Pn
Tokyo, Japan 27.71 5:44.913:03:34.9P
Beijing, China 30.82 6:12.513:04:02.4P
Kathmandu, Nepal 42.67 7:53.013:05:43.0P
Brisbane, Australia 45.38 8:14.813:06:04.8P
Wellington, New Zealand 67.7110:53.713:08:43.7P
Honolulu, Hawaii 72.6311:23.913:09:13.9P
Anchorage, Alaska 77.6611:52.913:09:42.9P
Moscow, Russia 81.0412:11.313:10:01.3P
Nairobi, Kenya 90.3112:57.213:10:47.2P
Bergen, Norway 95.7413:22.213:11:12.2P
Seattle, Washington 95.8813:22.813:11:12.8P
San Francisco, California 99.5313:39.113:11:29.1Pdiff
Rome, Italy 100.6213:43.913:11:33.9Pdiff
London, England 103.3313:56.013:11:46.0Pdiff
Los Angeles, California 104.0613:59.213:11:49.2Pdiff
Phoenix, Arizona 108.9814:21.013:12:11.0Pdiff
Golden, Colorado 110.5714:28.113:12:18.1Pdiff
Albuquerque, New Mexico 112.1214:35.013:12:25.0Pdiff
Duluth, Minnesota 113.2414:40.013:12:30.0Pdiff
Wichita, Kansas 116.6714:55.213:12:45.2Pdiff
St. Louis, Missouri 120.1315:10.513:13:00.5Pdiff
Ottawa, Canada 120.8015:13.513:13:03.5Pdiff
Palmer Station, Antarctica 122.2515:19.913:13:09.9Pdiff
Bangor, Maine 123.2415:24.413:13:14.4Pdiff
Brownsville, Texas 123.7015:26.413:13:16.4Pdiff
Knoxville, Tennessee 124.8415:31.513:13:21.5Pdiff
Boston, Massachusetts 124.9815:32.113:13:22.1Pdiff
New York, New York 125.5815:34.713:13:24.7Pdiff
Mexico City, Mexico 125.7815:35.613:13:25.6Pdiff
Philadelphia, Pennsylvania 125.8615:36.013:13:26.0Pdiff
Washington, D.C. 126.1015:37.113:13:27.1Pdiff
Miami, Florida 135.4016:18.313:14:08.3Pdiff
San Juan, Puerto Rico 148.5319:39.913:17:29.9PKPdf
Lima, Peru 156.4319:52.013:17:42.0PKPdf

Travel Time Information and Calculator

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