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Earthquake Hazards Program

Theoretical P-Wave Travel Times

Magnitude 4.7 CENTRAL CALIFORNIA
2005 September 22 20:24:48 UTC

Preliminary Earthquake Report
from the Advanced National Seismic System (ANSS)

Theoretical P-wave Travel Times
Theoretical P-wave Travel Times

These maps show 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
Los Angeles, California 1.18 0:22.120:25:10.1Pn
San Francisco, California 3.87 0:59.220:25:47.1Pn
Albuquerque, New Mexico 10.14 2:25.220:27:13.2Pn
Golden, Colorado 11.93 2:49.720:27:37.7Pn
Seattle, Washington 12.98 3:04.020:27:52.0Pn
Wichita, Kansas 17.65 4:05.520:28:53.5Pn
Brownsville, Texas 20.62 4:38.920:29:26.9P
St. Louis, Missouri 23.24 5:07.020:29:55.0P
Duluth, Minnesota 23.29 5:07.520:29:55.5P
Mexico City, Mexico 23.46 5:09.220:29:57.2P
Knoxville, Tennessee 27.49 5:45.820:30:33.8P
Anchorage, Alaska 32.75 6:32.420:31:20.4P
Washington, D.C. 33.53 6:39.220:31:27.2P
Ottawa, Canada 34.26 6:45.520:31:33.5P
Miami, Florida 34.55 6:48.120:31:36.1P
Philadephia, Pennsylvania 34.86 6:50.720:31:38.7P
New York, New York 35.66 6:57.620:31:45.6P
Honolulu, Hawaii 36.63 7:05.820:31:53.8P
Boston, Massachusetts 37.69 7:14.920:32:02.9P
Bangor, Maine 39.19 7:27.420:32:15.4P
San Juan, Puerto Rico 49.44 8:49.520:33:37.5P
Lima, Peru 61.4610:16.120:35:04.1P
Bergen, Norway 74.5611:38.520:36:26.5P
Tokyo, Japan 78.3812:00.120:36:48.1P
London, England 78.5312:01.020:36:49.0P
Agana, Guam 87.4012:46.820:37:34.8P
Moscow, Russia 87.4012:46.820:37:34.9P
Beijing, China 89.5812:57.220:37:45.1P
Rome, Italy 91.4813:06.020:37:54.0P
Wellington, New Zealand 97.2513:32.320:38:20.3P
Brisbane, Australia 103.7114:01.020:38:49.0Pdiff
Palmer Station, Antarctica 110.4514:30.920:39:18.9Pdiff
Kathmandu, Nepal 113.5014:44.420:39:32.4Pdiff
Nairobi, Kenya 139.5616:40.120:41:28.1Pdiff
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