Theoretical P-Wave Travel Times

Magnitude 4.1 NORTHERN QINGHAI, CHINA
Tuesday, February 05, 2013 at 13:13:51 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
Beijing, China 12.82 3:02.713:16:50.7Pn
Kathmandu, Nepal 16.53 3:52.313:17:40.3Pn
Tokyo, Japan 31.69 6:24.213:20:12.2P
Moscow, Russia 43.81 8:06.413:21:54.4P
Agana, Guam 46.93 8:31.213:22:19.2P
Bergen, Norway 59.2010:01.813:23:49.8P
Rome, Italy 63.7410:32.513:24:20.5P
Anchorage, Alaska 65.3510:43.013:24:31.0P
London, England 66.2410:48.713:24:36.7P
Nairobi, Kenya 70.1711:13.413:25:01.4P
Brisbane, Australia 82.5912:23.913:26:11.9P
Seattle, Washington 85.8412:40.413:26:28.4P
Honolulu, Hawaii 85.8912:40.713:26:28.7P
Duluth, Minnesota 94.0413:18.913:27:06.9P
San Francisco, California 94.3313:20.213:27:08.2P
Ottawa, Canada 95.9613:27.713:27:15.7P
Bangor, Maine 96.0513:28.113:27:16.1P
Golden, Colorado 98.4113:38.613:27:26.6Pdiff
Boston, Massachusetts 98.7213:40.013:27:28.0Pdiff
Los Angeles, California 99.2513:42.413:27:30.4Pdiff
New York, New York 100.5613:48.213:27:36.2Pdiff
Philadelphia, Pennsylvania 101.3913:51.813:27:39.8Pdiff
Wichita, Kansas 102.0713:54.913:27:42.9Pdiff
Phoenix, Arizona 102.1313:55.113:27:43.1Pdiff
St. Louis, Missouri 102.2413:55.613:27:43.6Pdiff
Albuquerque, New Mexico 102.3913:56.313:27:44.3Pdiff
Washington, D.C. 102.5213:56.913:27:44.9Pdiff
Wellington, New Zealand 104.9314:07.613:27:55.6Pdiff
Knoxville, Tennessee 105.3614:09.513:27:57.5Pdiff
Brownsville, Texas 113.5014:45.613:28:33.6Pdiff
Miami, Florida 115.6614:55.213:28:43.2Pdiff
Mexico City, Mexico 119.2915:11.313:28:59.3Pdiff
San Juan, Puerto Rico 121.4315:20.813:29:08.8Pdiff
Palmer Station, Antarctica 149.7519:46.613:33:34.6PKPdf
Lima, Peru 153.1619:51.913:33:39.9PKPdf

Travel Time Information and Calculator

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