Historic Earthquakes: Travel Times

Magnitude 7.1 TAIWAN REGION
2002 March 31 06:52:50 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
Beijing, China 16.21 3:45.2 6:56:35.2 Pn
Tokyo, Japan 18.85 4:17.1 6:57:07.1 P
Agana, Guam 23.90 5:10.7 6:58:00.7 P
Kathmandu, Nepal 33.23 6:33.8 6:59:23.8 P
Brisbane, Australia 59.54 10:00.0 7:02:50.0 P
Moscow, Russia 67.16 10:50.5 7:03:40.5 P
Anchorage, Alaska 67.93 10:55.4 7:03:45.4 P
Honolulu, Hawaii 72.74 11:24.9 7:04:14.9 P
Bergen, Norway 81.27 12:12.8 7:05:02.8 P
Wellington, New Zealand 81.51 12:14.1 7:05:04.1 P
Nairobi, Kenya 86.31 12:38.5 7:05:28.5 P
Rome, Italy 87.50 12:44.3 7:05:34.3 P
Seattle, Washington 87.76 12:45.6 7:05:35.6 P
London, England 89.11 12:51.9 7:05:41.9 P
San Francisco, California 93.38 13:11.7 7:06:01.7 P
Los Angeles, California 98.30 13:33.9 7:06:23.9 P
Golden, Colorado 102.36 13:51.9 7:06:41.9 Pdiff
Duluth, Minnesota 102.66 13:53.3 7:06:43.3 Pdiff
Albuquerque, New Mexico 104.89 14:03.2 7:06:53.2 Pdiff
Wichita, Kansas 107.86 14:16.4 7:07:06.4 Pdiff
Ottawa, Canada 108.62 14:19.8 7:07:09.8 Pdiff
St. Louis, Missouri 110.28 14:27.1 7:07:17.1 Pdiff
Bangor, Maine 110.41 14:27.7 7:07:17.7 Pdiff
Boston, Massachusetts 112.47 14:36.9 7:07:26.9 Pdiff
New York, New York 113.49 14:41.3 7:07:31.3 Pdiff
Philadelphia, Pennsylvania 113.96 14:43.4 7:07:33.4 Pdiff
Washington, D.C. 114.51 14:45.9 7:07:35.9 Pdiff
Knoxville, Tennessee 114.63 14:46.4 7:07:36.4 Pdiff
Brownsville, Texas 116.95 14:56.7 7:07:46.7 Pdiff
Mexico City, Mexico 120.66 15:13.2 7:08:03.2 Pdiff
Miami, Florida 125.63 15:35.2 7:08:25.2 Pdiff
Palmer Station, Antarctica 136.45 16:23.3 7:09:13.3 Pdiff
San Juan, Puerto Rico 136.61 16:24.0 7:09:14.0 Pdiff
Lima, Peru 158.03 19:52.7 7:12:42.7 PKPdf