Historic Earthquakes

Magnitude 7.1 Near Coast of Northern Chile
1998 January 30 12:16:08 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 13.42 3:07.812:19:15.8Pn
San Juan, Puerto Rico 42.31 7:49.512:23:57.5P
Palmer Station, Antarctica 44.04 8:03.412:24:11.4P
Miami, Florida 50.31 8:52.312:25:00.3P
Mexico City, Mexico 51.49 9:01.212:25:09.2P
Brownsville, Texas 56.12 9:35.012:25:43.0P
Knoxville, Tennessee 61.1910:10.312:26:18.3P
Washington, D.C. 62.7910:21.112:26:29.1P
Philadelphia, Pennsylvania 63.6910:27.012:26:35.0P
New York, New York 64.3810:31.612:26:39.6P
St. Louis, Missouri 65.0210:35.712:26:43.7P
Boston, Massachusetts 65.9010:41.512:26:49.5P
Wichita, Kansas 66.4310:44.912:26:52.9P
Albuquerque, New Mexico 68.0810:55.312:27:03.3P
Bangor, Maine 68.3810:57.212:27:05.2P
Ottawa, Canada 69.1711:02.112:27:10.1P
Golden, Colorado 71.2511:14.912:27:22.9P
Duluth, Minnesota 73.0711:25.812:27:33.8P
Los Angeles, California 73.5311:28.512:27:36.5P
San Francisco, California 78.5511:57.012:28:05.0P
Seattle, Washington 85.3312:32.612:28:40.6P
Wellington, New Zealand 91.5413:02.112:29:10.1P
Honolulu, Hawaii 96.3413:24.012:29:32.0P
London, England 96.8413:26.312:29:34.3P
Rome, Italy 100.4413:42.312:29:50.3Pdiff
Bergen, Norway 103.6613:56.612:30:04.6Pdiff
Nairobi, Kenya 105.0114:02.612:30:10.6Pdiff
Anchorage, Alaska 105.8714:06.412:30:14.4Pdiff
Brisbane, Australia 114.0514:42.712:30:50.7Pdiff
Moscow, Russia 119.4315:06.612:31:14.6Pdiff
Agana, Guam 145.3919:32.412:35:40.4PKPbc
Tokyo, Japan 151.6019:42.612:35:50.6PKPdf
Kathmandu, Nepal 157.6519:51.012:35:59.0PKPdf
Beijing, China 163.0919:57.112:36:05.1PKPdf