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Earthquake Hazards Program

Magnitude 4.7 GREATER LOS ANGELES AREA, CALIF.

2009 May 18 03:39:36 UTC

Theoretical P-Wave Travel Times

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 0.14 0:03.5 3:39:39.5Pg
San Francisco, California 5.06 1:15.5 3:40:51.5Pn
Phoenix, Arizona 5.25 1:18.1 3:40:54.1Pn
Albuquerque, New Mexico 9.73 2:19.6 3:41:55.6Pn
Golden, Colorado 12.01 2:50.8 3:42:26.8Pn
Seattle, Washington 14.17 3:20.2 3:42:56.2Pn
Wichita, Kansas 17.45 4:03.0 3:43:39.0Pn
Brownsville, Texas 19.74 4:29.3 3:44:05.3P
Mexico City, Mexico 22.36 4:57.7 3:44:33.7P
St. Louis, Missouri 23.08 5:05.3 3:44:41.3P
Duluth, Minnesota 23.57 5:10.4 3:44:46.4P
Knoxville, Tennessee 27.20 5:43.3 3:45:19.3P
Washington, D.C. 33.40 6:38.0 3:46:14.0P
Miami, Florida 33.93 6:42.7 3:46:18.7P
Anchorage, Alaska 33.99 6:43.2 3:46:19.2P
Ottawa, Canada 34.38 6:46.5 3:46:22.5P
Philadelphia, Pennsylvania 34.77 6:49.9 3:46:25.9P
New York, New York 35.60 6:57.1 3:46:33.1P
Honolulu, Hawaii 36.96 7:08.7 3:46:44.7P
Boston, Massachusetts 37.70 7:14.9 3:46:50.9P
Bangor, Maine 39.28 7:28.2 3:47:04.2P
San Juan, Puerto Rico 48.81 8:44.6 3:48:20.6P
Lima, Peru 60.3110:08.3 3:49:44.3P
Bergen, Norway 75.3311:42.9 3:51:18.9P
London, England 79.1512:04.4 3:51:40.4P
Tokyo, Japan 79.4712:06.1 3:51:42.1P
Agana, Guam 88.2112:50.7 3:52:26.7P
Moscow, Russia 88.3612:51.4 3:52:27.4P
Beijing, China 90.7913:02.8 3:52:38.8P
Rome, Italy 92.0913:08.8 3:52:44.8P
Wellington, New Zealand 96.8413:30.4 3:53:06.4P
Brisbane, Australia 103.7614:01.2 3:53:37.2Pdiff
Palmer Station, Antarctica 109.2214:25.4 3:54:01.4Pdiff
Kathmandu, Nepal 114.7314:49.9 3:54:25.9Pdiff
Nairobi, Kenya 140.0616:42.3 3:56:18.3Pdiff

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


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