Theoretical P-Wave Travel Times

Magnitude 4.5 NORTHERN ALGERIA
Friday, February 22, 2013 at 12:30:50 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
Rome, Italy 7.48 1:49.112:32:39.1Pn
London, England 15.13 3:33.712:34:23.7Pn
Bergen, Norway 23.52 5:10.412:36:00.4P
Moscow, Russia 28.87 5:58.812:36:48.8P
Nairobi, Kenya 47.93 8:38.412:39:28.4P
Bangor, Maine 54.82 9:30.112:40:20.1P
Boston, Massachusetts 57.27 9:47.612:40:37.6P
Ottawa, Canada 59.1910:01.112:40:51.1P
New York, New York 59.9210:06.112:40:56.1P
Philadelphia, Pennsylvania 61.0410:13.812:41:03.8P
Washington, D.C. 62.8110:25.712:41:15.7P
San Juan, Puerto Rico 64.5010:36.912:41:26.9P
Kathmandu, Nepal 66.4510:49.512:41:39.5P
Duluth, Minnesota 68.7811:04.212:41:54.2P
Knoxville, Tennessee 69.8911:11.112:42:01.1P
Miami, Florida 71.6311:21.712:42:11.7P
St. Louis, Missouri 71.8911:23.312:42:13.3P
Wichita, Kansas 76.9811:52.912:42:42.9P
Anchorage, Alaska 80.1912:10.612:43:00.6P
Golden, Colorado 80.5712:12.612:43:02.6P
Beijing, China 80.8212:14.012:43:04.0P
Seattle, Washington 83.6212:28.612:43:18.6P
Brownsville, Texas 84.3012:32.112:43:22.1P
Albuquerque, New Mexico 84.4912:33.012:43:23.0P
Phoenix, Arizona 88.8912:54.512:43:44.5P
Mexico City, Mexico 89.5312:57.512:43:47.5P
Lima, Peru 91.1513:05.012:43:55.0P
San Francisco, California 91.4013:06.212:43:56.2P
Los Angeles, California 92.0113:09.012:43:59.0P
Tokyo, Japan 96.3413:28.812:44:18.8P
Palmer Station, Antarctica 116.4214:58.012:45:48.0Pdiff
Agana, Guam 117.0315:00.712:45:50.7Pdiff
Honolulu, Hawaii 119.9815:13.812:46:03.8Pdiff
Brisbane, Australia 151.2119:48.312:50:38.3PKPdf
Wellington, New Zealand 170.7120:10.112:51:00.1PKPdf

Travel Time Information and Calculator

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