Theoretical P-Wave Travel Times

Wednesday, April 24, 2013 at 00:41:08 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 18.76 4:18.023:19:00.0P
Brisbane, Australia 23.46 5:08.623:19:50.6P
Tokyo, Japan 41.05 7:42.223:22:24.2P
Wellington, New Zealand 42.39 7:53.223:22:35.2P
Beijing, China 54.56 9:27.023:24:09.0P
Honolulu, Hawaii 55.04 9:30.523:24:12.5P
Kathmandu, Nepal 71.5211:19.823:26:01.8P
Anchorage, Alaska 78.6612:01.023:26:43.0P
San Francisco, California 88.7812:52.723:27:34.7P
Seattle, Washington 89.8812:57.823:27:39.8P
Los Angeles, California 91.8613:07.023:27:49.0P
Phoenix, Arizona 96.9813:30.323:28:12.3P
Albuquerque, New Mexico 101.4413:50.223:28:32.2Pdiff
Golden, Colorado 102.2413:53.723:28:35.7Pdiff
Palmer Station, Antarctica 104.1014:02.023:28:44.0Pdiff
Moscow, Russia 106.8214:14.023:28:56.0Pdiff
Wichita, Kansas 108.5914:21.923:29:03.9Pdiff
Mexico City, Mexico 108.9314:23.423:29:05.4Pdiff
Brownsville, Texas 110.0214:28.223:29:10.2Pdiff
Duluth, Minnesota 110.3014:29.523:29:11.5Pdiff
St. Louis, Missouri 113.8514:45.323:29:27.3Pdiff
Nairobi, Kenya 115.1314:51.023:29:33.0Pdiff
Bergen, Norway 118.2715:04.923:29:46.9Pdiff
Knoxville, Tennessee 118.5015:05.923:29:47.9Pdiff
Ottawa, Canada 121.3215:18.423:30:00.4Pdiff
Washington, D.C. 123.4715:28.023:30:10.0Pdiff
Philadelphia, Pennsylvania 124.3115:31.723:30:13.7Pdiff
New York, New York 124.7315:33.523:30:15.5Pdiff
Miami, Florida 125.4115:36.623:30:18.6Pdiff
Bangor, Maine 125.7815:38.223:30:20.2Pdiff
Boston, Massachusetts 125.7915:38.223:30:20.2Pdiff
London, England 127.2415:44.723:30:26.7Pdiff
Rome, Italy 127.7915:47.223:30:29.1Pdiff
Lima, Peru 128.5915:50.723:30:32.7Pdiff
San Juan, Puerto Rico 139.8916:40.923:31:22.9Pdiff

Travel Time Information and Calculator

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