Theoretical P-Wave Travel Times

Friday, April 12, 2013 at 20:53:59 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
Tokyo, Japan 4.23 1:05.020:34:21.0Pn
Beijing, China 15.66 3:41.220:36:57.2Pn
Agana, Guam 22.71 5:02.520:38:18.5P
Kathmandu, Nepal 42.60 7:56.920:41:12.9P
Anchorage, Alaska 53.56 9:21.720:42:37.7P
Honolulu, Hawaii 59.9810:07.320:43:23.3P
Brisbane, Australia 63.9210:33.920:43:49.9P
Moscow, Russia 66.0510:47.720:44:03.7P
Seattle, Washington 73.0611:31.020:44:47.0P
Bergen, Norway 76.8911:53.220:45:09.2P
San Francisco, California 78.5612:02.520:45:18.5P
Los Angeles, California 83.4812:28.720:45:44.7P
Wellington, New Zealand 83.8012:30.320:45:46.3P
London, England 85.7812:40.320:45:56.3P
Rome, Italy 87.4912:48.620:46:04.6P
Golden, Colorado 87.7212:49.820:46:05.8P
Phoenix, Arizona 87.8612:50.420:46:06.4P
Duluth, Minnesota 88.8212:55.020:46:11.0P
Albuquerque, New Mexico 90.1313:01.020:46:17.0P
Wichita, Kansas 93.3813:16.120:46:32.1P
Ottawa, Canada 95.8713:27.520:46:43.5P
St. Louis, Missouri 96.1513:28.720:46:44.7P
Nairobi, Kenya 97.3313:34.020:46:50.0P
Bangor, Maine 98.3113:38.420:46:54.4P
Boston, Massachusetts 100.0313:46.020:47:02.0Pdiff
New York, New York 100.6713:48.920:47:04.9Pdiff
Knoxville, Tennessee 100.6813:48.920:47:04.9Pdiff
Philadelphia, Pennsylvania 101.0013:50.320:47:06.3Pdiff
Washington, D.C. 101.3213:51.720:47:07.7Pdiff
Brownsville, Texas 102.1713:55.520:47:11.5Pdiff
Mexico City, Mexico 105.8414:11.820:47:27.8Pdiff
Miami, Florida 111.5614:37.220:47:53.2Pdiff
San Juan, Puerto Rico 123.7515:31.320:48:47.3Pdiff
Lima, Peru 143.5016:59.020:50:15.0Pdiff
Palmer Station, Antarctica 144.8717:05.020:50:21.0Pdiff

Travel Time Information and Calculator

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