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Earthquake Hazards Program

Magnitude 4.6 SOUTHERN QINGHAI, CHINA

Monday, September 28, 2009 at 02:43:26 UTC

Theoretical P-Wave Travel Times

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
Kathmandu, Nepal 12.12 2:50.7 2:46:15.7Pn
Beijing, China 16.68 3:51.5 2:47:16.5Pn
Tokyo, Japan 35.32 6:52.5 2:50:17.5P
Moscow, Russia 43.79 8:03.0 2:51:28.0P
Agana, Guam 49.01 8:43.9 2:52:08.9P
Bergen, Norway 59.9610:03.5 2:53:28.5P
Rome, Italy 62.8610:23.2 2:53:48.2P
Nairobi, Kenya 66.1710:44.8 2:54:09.8P
London, England 66.4310:46.5 2:54:11.5P
Anchorage, Alaska 69.6111:06.5 2:54:31.5P
Brisbane, Australia 82.7712:21.3 2:55:46.3P
Seattle, Washington 90.0312:56.8 2:56:21.8P
Honolulu, Hawaii 90.0712:57.0 2:56:22.0P
Duluth, Minnesota 97.5313:31.1 2:56:56.1P
Bangor, Maine 98.6213:35.9 2:57:00.9Pdiff
San Francisco, California 98.6313:36.0 2:57:01.0Pdiff
Ottawa, Canada 98.8413:36.9 2:57:01.9Pdiff
Boston, Massachusetts 101.3713:48.2 2:57:13.2Pdiff
Golden, Colorado 102.3613:52.5 2:57:17.5Pdiff
New York, New York 103.3313:56.9 2:57:21.9Pdiff
Los Angeles, California 103.5313:57.8 2:57:22.8Pdiff
Philadelphia, Pennsylvania 104.2114:00.8 2:57:25.8Pdiff
Wellington, New Zealand 105.2814:05.5 2:57:30.5Pdiff
Washington, D.C. 105.4214:06.2 2:57:31.2Pdiff
St. Louis, Missouri 105.7114:07.4 2:57:32.4Pdiff
Wichita, Kansas 105.8014:07.8 2:57:32.8Pdiff
Phoenix, Arizona 106.3114:10.1 2:57:35.1Pdiff
Albuquerque, New Mexico 106.4214:10.6 2:57:35.6Pdiff
Knoxville, Tennessee 108.6414:20.4 2:57:45.4Pdiff
Brownsville, Texas 117.3614:59.1 2:58:24.1Pdiff
Miami, Florida 118.6915:05.0 2:58:30.0Pdiff
Mexico City, Mexico 123.2715:25.4 2:58:50.4Pdiff
San Juan, Puerto Rico 123.4415:26.1 2:58:51.1Pdiff
Palmer Station, Antarctica 146.0019:36.0 3:03:01.0PKPbc
Lima, Peru 155.6019:51.8 3:03:16.8PKPdf

Travel Time Information and Calculator

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


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