Theoretical P-Wave Travel Times

Friday, March 15, 2013 at 17:53:32 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 20.04 4:28.317:30:15.3P
Brisbane, Australia 22.16 4:51.117:30:38.1P
Wellington, New Zealand 41.13 7:38.417:33:25.4P
Tokyo, Japan 42.35 7:48.417:33:35.4P
Honolulu, Hawaii 55.49 9:29.017:35:16.0P
Beijing, China 55.76 9:30.917:35:17.9P
Kathmandu, Nepal 72.3711:20.017:37:07.0P
Anchorage, Alaska 79.7412:01.917:37:48.9P
San Francisco, California 89.4012:50.517:38:37.5P
Seattle, Washington 90.6912:56.517:38:43.5P
Los Angeles, California 92.4013:04.417:38:51.4P
Phoenix, Arizona 97.5013:27.517:39:14.5P
Albuquerque, New Mexico 101.9913:47.517:39:34.5Pdiff
Palmer Station, Antarctica 102.7913:51.117:39:38.1Pdiff
Golden, Colorado 102.8913:51.517:39:38.5Pdiff
Moscow, Russia 108.0214:14.317:40:01.3Pdiff
Mexico City, Mexico 109.1414:19.217:40:06.2Pdiff
Wichita, Kansas 109.2214:19.617:40:06.6Pdiff
Brownsville, Texas 110.3814:24.717:40:11.7Pdiff
Duluth, Minnesota 111.1214:28.017:40:15.0Pdiff
St. Louis, Missouri 114.5214:43.117:40:30.1Pdiff
Nairobi, Kenya 115.2714:46.517:40:33.5Pdiff
Knoxville, Tennessee 119.1315:03.617:40:50.6Pdiff
Bergen, Norway 119.5715:05.517:40:52.5Pdiff
Ottawa, Canada 122.2015:17.217:41:04.2Pdiff
Washington, D.C. 124.2215:26.217:41:13.2Pdiff
Philadelphia, Pennsylvania 125.0915:30.017:41:17.0Pdiff
New York, New York 125.5415:32.017:41:19.0Pdiff
Miami, Florida 125.8315:33.317:41:20.3Pdiff
Boston, Massachusetts 126.6515:37.017:41:24.0Pdiff
Bangor, Maine 126.7015:37.217:41:24.2Pdiff
Lima, Peru 127.9615:42.817:41:29.8Pdiff
London, England 128.5215:45.317:41:32.3Pdiff
Rome, Italy 128.9515:47.217:41:34.2Pdiff
San Juan, Puerto Rico 140.2116:37.117:42:24.1Pdiff

Travel Time Information and Calculator

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