Historic Earthquakes

Northern Iran
1997 May 10 07:57:29 UTC
Magnitude 7.3

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
Kathmandu, Nepal 22.73 5:02.1 8:02:31.1P
Moscow, Russia 26.74 5:39.7 8:03:08.7P
Rome, Italy 37.81 7:16.4 8:04:45.4P
Nairobi, Kenya 41.06 7:43.5 8:05:12.5P
Bergen, Norway 43.85 8:06.2 8:05:35.2P
Beijing, China 45.07 8:16.0 8:05:45.0P
London, England 46.14 8:24.5 8:05:53.5P
Tokyo, Japan 63.9110:33.0 8:08:02.0P
Agana, Guam 78.4912:01.4 8:09:30.4P
Anchorage, Alaska 82.2612:21.6 8:09:50.6P
Bangor, Maine 88.8912:54.5 8:10:23.5P
Ottawa, Canada 91.4513:06.4 8:10:35.4P
Boston, Massachusetts 91.8613:08.3 8:10:37.3P
New York, New York 94.4913:20.4 8:10:49.4P
Philadelphia, Pennsylvania 95.6313:25.5 8:10:54.5P
Duluth, Minnesota 95.9213:26.9 8:10:55.9P
Washington, D.C. 97.3313:33.2 8:11:02.2P
Seattle, Washington 98.7413:39.5 8:11:08.5Pdiff
St. Louis, Missouri 102.7213:57.1 8:11:26.1Pdiff
Knoxville, Tennessee 103.2613:59.6 8:11:28.6Pdiff
Golden, Colorado 105.5014:09.5 8:11:38.5Pdiff
Wichita, Kansas 105.6814:10.3 8:11:39.3Pdiff
San Juan, Puerto Rico 106.8114:15.3 8:11:44.3Pdiff
Brisbane, Australia 107.2014:17.0 8:11:46.0Pdiff
San Francisco, California 108.7514:23.9 8:11:52.9Pdiff
Miami, Florida 109.6014:27.7 8:11:56.7Pdiff
Albuquerque, New Mexico 110.3014:30.8 8:11:59.8Pdiff
Los Angeles, California 112.4714:40.4 8:12:09.4Pdiff
Honolulu, Hawaii 114.5014:49.4 8:12:18.4Pdiff
Brownsville, Texas 116.8214:59.8 8:12:28.8Pdiff
Mexico City, Mexico 123.4015:28.9 8:12:57.9Pdiff
Wellington, New Zealand 128.9815:53.7 8:13:22.7Pdiff
Palmer Station, Antarctica 133.5316:13.9 8:13:42.9Pdiff
Lima, Peru 135.1916:21.3 8:13:50.3Pdiff