Theoretical P-Wave Travel Times

Magnitude 4.7 NORTHERN QINGHAI, CHINA
Wednesday, January 30, 2013 at 19:50:29 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
Kathmandu, Nepal 13.03 3:04.817:35:59.8Pn
Beijing, China 15.95 3:44.017:36:39.0Pn
Tokyo, Japan 34.68 6:49.117:39:44.1P
Moscow, Russia 43.50 8:02.817:40:57.8P
Agana, Guam 48.77 8:44.417:41:39.4P
Bergen, Norway 59.5210:02.817:42:57.8P
Rome, Italy 62.7810:24.917:43:19.9P
London, England 66.1110:46.717:43:41.7P
Nairobi, Kenya 66.9110:51.817:43:46.8P
Anchorage, Alaska 68.6211:02.717:43:57.7P
Brisbane, Australia 83.0012:24.817:45:19.8P
Seattle, Washington 89.0512:54.617:45:49.6P
Honolulu, Hawaii 89.2612:55.617:45:50.6P
Duluth, Minnesota 96.6213:29.417:46:24.4P
San Francisco, California 97.6513:34.017:46:29.0P
Bangor, Maine 97.8513:34.917:46:29.9P
Ottawa, Canada 98.0213:35.717:46:30.7P
Boston, Massachusetts 100.6013:47.117:46:42.1Pdiff
Golden, Colorado 101.3913:50.617:46:45.6Pdiff
New York, New York 102.5313:55.717:46:50.7Pdiff
Los Angeles, California 102.5513:55.817:46:50.8Pdiff
Philadelphia, Pennsylvania 103.4013:59.617:46:54.6Pdiff
Washington, D.C. 104.6014:04.917:46:59.9Pdiff
St. Louis, Missouri 104.8014:05.817:47:00.8Pdiff
Wichita, Kansas 104.8614:06.017:47:01.0Pdiff
Phoenix, Arizona 105.3314:08.117:47:03.1Pdiff
Albuquerque, New Mexico 105.4514:08.717:47:03.7Pdiff
Wellington, New Zealand 105.4814:08.817:47:03.8Pdiff
Knoxville, Tennessee 107.7614:18.917:47:13.9Pdiff
Brownsville, Texas 116.4014:57.317:47:52.3Pdiff
Miami, Florida 117.8515:03.717:47:58.7Pdiff
Mexico City, Mexico 122.3015:23.517:48:18.5Pdiff
San Juan, Puerto Rico 122.7815:25.617:48:20.6Pdiff
Palmer Station, Antarctica 146.9519:40.617:52:35.6PKPdf
Lima, Peru 154.8919:53.217:52:48.2PKPdf

Travel Time Information and Calculator

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