Theoretical P-Wave Travel Times

Magnitude 4.7 LA RIOJA, ARGENTINA
Monday, April 08, 2013 at 00:19:19 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
(degrees)
Travel Time
(min:secs)
Arrival Time
UTC
Phase
Lima, Peru 19.19 4:15.623:36:53.6P
Palmer Station, Antarctica 38.43 7:11.523:39:49.5P
San Juan, Puerto Rico 47.68 8:26.023:41:04.0P
Miami, Florida 56.11 9:28.723:42:06.7P
Mexico City, Mexico 57.10 9:35.623:42:13.6P
Brownsville, Texas 61.8610:08.423:42:46.4P
Knoxville, Tennessee 67.0110:42.023:43:20.0P
Washington, D.C. 68.5010:51.423:43:29.4P
Philadelphia, Pennsylvania 69.3510:56.723:43:34.7P
New York, New York 70.0211:00.723:43:38.7P
St. Louis, Missouri 70.8611:05.823:43:43.8P
Boston, Massachusetts 71.4711:09.623:43:47.6P
Wichita, Kansas 72.2611:14.323:43:52.3P
Albuquerque, New Mexico 73.7711:23.223:44:01.2P
Bangor, Maine 73.8911:23.923:44:01.9P
Ottawa, Canada 74.8311:29.323:44:07.3P
Phoenix, Arizona 75.1611:31.223:44:09.2P
Golden, Colorado 77.0211:41.823:44:19.8P
Duluth, Minnesota 78.9111:52.223:44:30.2P
Los Angeles, California 78.9811:52.623:44:30.6P
San Francisco, California 84.0112:19.123:44:57.1P
Wellington, New Zealand 88.7812:42.323:45:20.3P
Seattle, Washington 91.0212:52.723:45:30.7P
Honolulu, Hawaii 100.0013:33.423:46:11.4Pdiff
London, England 100.1613:34.123:46:12.1Pdiff
Nairobi, Kenya 102.3013:43.623:46:21.6Pdiff
Rome, Italy 102.6113:45.023:46:23.0Pdiff
Bergen, Norway 107.4914:06.623:46:44.6Pdiff
Brisbane, Australia 111.0814:22.623:47:00.6Pdiff
Anchorage, Alaska 111.6014:24.923:47:02.9Pdiff
Moscow, Russia 122.5015:13.223:47:51.2Pdiff
Agana, Guam 145.7319:26.223:52:04.2PKPbc
Tokyo, Japan 155.8119:42.923:52:20.9PKPdf
Kathmandu, Nepal 156.5619:44.023:52:22.0PKPdf
Beijing, China 168.9319:56.723:52:34.7PKPdf

Travel Time Information and Calculator

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