Theoretical P-Wave Travel Times

Magnitude 4.0 TAIWAN
Wednesday, February 20, 2013 at 15:20:27 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
Beijing, China 17.20 4:00.315:24:27.3Pn
Tokyo, Japan 20.10 4:33.815:25:00.8P
Agana, Guam 24.05 5:15.215:25:42.2P
Kathmandu, Nepal 32.92 6:34.415:27:01.4P
Brisbane, Australia 58.87 9:58.915:30:25.9P
Moscow, Russia 67.7210:57.615:31:24.6P
Anchorage, Alaska 69.2611:07.215:31:34.2P
Honolulu, Hawaii 73.6711:33.915:32:00.9P
Wellington, New Zealand 80.9512:14.715:32:41.7P
Bergen, Norway 82.0412:20.515:32:47.5P
Nairobi, Kenya 85.6212:38.715:33:05.7P
Rome, Italy 87.9012:49.815:33:16.8P
Seattle, Washington 89.0812:55.415:33:22.4P
London, England 89.7912:58.715:33:25.7P
San Francisco, California 94.6513:21.115:33:48.1P
Los Angeles, California 99.5613:43.115:34:10.1Pdiff
Golden, Colorado 103.6814:01.415:34:28.4Pdiff
Phoenix, Arizona 103.9714:02.715:34:29.7Pdiff
Duluth, Minnesota 103.9914:02.815:34:29.8Pdiff
Albuquerque, New Mexico 106.2014:12.615:34:39.6Pdiff
Wichita, Kansas 109.1914:25.915:34:52.9Pdiff
Ottawa, Canada 109.9214:29.115:34:56.1Pdiff
St. Louis, Missouri 111.6214:36.715:35:03.7Pdiff
Bangor, Maine 111.6714:36.915:35:03.9Pdiff
Boston, Massachusetts 113.7514:46.115:35:13.1Pdiff
New York, New York 114.7814:50.715:35:17.7Pdiff
Philadelphia, Pennsylvania 115.2614:52.815:35:19.8Pdiff
Washington, D.C. 115.8214:55.315:35:22.3Pdiff
Knoxville, Tennessee 115.9714:56.015:35:23.0Pdiff
Brownsville, Texas 118.2615:06.115:35:33.1Pdiff
Mexico City, Mexico 121.9315:22.415:35:49.4Pdiff
Miami, Florida 126.9615:44.815:36:11.8Pdiff
Palmer Station, Antarctica 135.3116:21.815:36:48.8Pdiff
San Juan, Puerto Rico 137.8916:33.315:37:00.3Pdiff
Lima, Peru 159.1519:59.615:40:26.6PKPdf

Travel Time Information and Calculator

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