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Earthquake Hazards Program
Theoretical P-Wave Travel Times


2003 December 27 16:01:00 UTC

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

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
Travel Time
Arrival Time
Brisbane, Australia 16.04 3:45.716:04:45.7Pn
Wellington, New Zealand 19.70 4:29.516:05:29.5P
Agana, Guam 42.86 7:58.216:08:58.2P
Honolulu, Hawaii 53.51 9:20.516:10:20.5P
Tokyo, Japan 63.9510:33.316:11:33.3P
Beijing, China 79.0612:04.516:13:04.5P
Palmer Station, Antarctica 82.2312:21.416:13:21.4P
San Francisco, California 87.2112:46.516:13:46.5P
Los Angeles, California 88.3612:52.016:13:52.0P
Anchorage, Alaska 89.1012:55.516:13:55.5P
Seattle, Washington 92.3813:10.716:14:10.7P
Kathmandu, Nepal 95.1913:23.616:14:23.6P
Albuquerque, New Mexico 97.4913:33.916:14:33.9P
Mexico City, Mexico 98.1513:36.916:14:36.9P
Golden, Colorado 100.2113:46.016:14:46.0Pdiff
Brownsville, Texas 101.7713:52.916:14:52.9Pdiff
Wichita, Kansas 105.4514:09.316:15:09.3Pdiff
Lima, Peru 106.3814:13.416:15:13.4Pdiff
St. Louis, Missouri 111.0814:34.316:15:34.3Pdiff
Duluth, Minnesota 111.2114:34.816:15:34.8Pdiff
Knoxville, Tennessee 114.5514:49.716:15:49.7Pdiff
Miami, Florida 116.7514:59.416:15:59.4Pdiff
Washington, D.C. 121.3315:19.816:16:19.8Pdiff
Ottawa, Canada 122.5015:25.016:16:25.0Pdiff
Philadephia, Pennsylvania 122.8415:26.516:16:26.5Pdiff
New York, New York 123.7515:30.516:16:30.5Pdiff
Boston, Massachusetts 125.9315:40.216:16:40.2Pdiff
Bangor, Maine 127.4515:46.916:16:46.9Pdiff
San Juan, Puerto Rico 127.8215:48.616:16:48.6Pdiff
Nairobi, Kenya 128.4515:51.416:16:51.4Pdiff
Moscow, Russia 131.1316:03.316:17:03.3Pdiff
Bergen, Norway 140.0916:43.116:17:43.1Pdiff
London, England 149.5119:44.316:20:44.3PKPdf
Rome, Italy 152.4019:48.716:20:48.7PKPdf

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