Historic Earthquakes

Magnitude 6.2 COLOMBIA
1999 January 25 18:19:16 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 16.50 3:50.6 18:23:06.6 Pn
San Juan, Puerto Rico 16.79 3:54.3 18:23:10.3 Pn
Miami, Florida 21.61 4:49.1 18:24:05.1 P
Mexico City, Mexico 27.27 5:43.4 18:24:59.4 P
Brownsville, Texas 29.83 6:06.2 18:25:22.2 P
Knoxville, Tennessee 32.52 6:29.9 18:25:45.9 P
Washington, D.C. 34.29 6:45.3 18:26:01.3 P
Philadelphia, Pennsylvania 35.33 6:54.2 18:26:10.2 P
New York, New York 36.12 7:01.0 18:26:17.0 P
St. Louis, Missouri 36.52 7:04.4 18:26:20.4 P
Boston, Massachusetts 37.93 7:16.4 18:26:32.4 P
Wichita, Kansas 38.58 7:21.8 18:26:37.8 P
Bangor, Maine 40.63 7:38.9 18:26:54.9 P
Ottawa, Canada 40.79 7:40.2 18:26:56.2 P
Albuquerque, New Mexico 41.78 7:48.3 18:27:04.3 P
Golden, Colorado 44.08 8:07.0 18:27:23.0 P
Duluth, Minnesota 44.47 8:10.1 18:27:26.1 P
Los Angeles, California 49.22 8:47.2 18:28:03.2 P
San Francisco, California 53.91 9:22.4 18:28:38.4 P
Seattle, Washington 58.74 9:56.8 18:29:12.8 P
Palmer Station, Antarctica 72.54 11:26.0 18:30:42.0 P
London, England 77.54 11:54.9 18:31:10.9 P
Anchorage, Alaska 78.51 12:00.3 18:31:16.3 P
Honolulu, Hawaii 81.06 12:14.1 18:31:30.1 P
Bergen, Norway 81.72 12:17.6 18:31:33.6 P
Rome, Italy 85.73 12:38.1 18:31:54.1 P
Moscow, Russia 99.23 13:40.5 18:32:56.5 Pdiff
Wellington, New Zealand 107.55 14:17.4 18:33:33.4 Pdiff
Nairobi, Kenya 112.58 14:39.8 18:33:55.8 Pdiff
Tokyo, Japan 128.05 15:48.4 18:35:04.4 Pdiff
Brisbane, Australia 128.30 15:49.5 18:35:05.5 Pdiff
Beijing, China 134.45 16:16.8 18:35:32.8 Pdiff
Agana, Guam 136.06 16:24.0 18:35:40.0 Pdiff
Kathmandu, Nepal 143.17 16:55.5 18:36:11.5 Pdiff