Theoretical P-Wave Travel Times

Magnitude 6.9 SOUTHERN QINGHAI, CHINA
Tuesday, April 13, 2010 at 23:49:38 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 11.25 2:38.123:52:20.1Pn
Beijing, China 17.19 3:56.723:53:38.7Pn
Tokyo, Japan 35.40 6:51.223:56:33.2P
Moscow, Russia 46.02 8:18.723:58:00.7P
Agana, Guam 47.86 8:33.023:58:15.0P
Bergen, Norway 62.3610:17.723:59:59.7P
Rome, Italy 64.7510:33.5 0:00:15.5P
Nairobi, Kenya 65.8710:40.7 0:00:22.7P
London, England 68.6810:58.5 0:00:40.5P
Anchorage, Alaska 71.5611:16.2 0:00:58.2P
Brisbane, Australia 80.6812:08.0 0:01:50.0P
Honolulu, Hawaii 90.6612:57.5 0:02:39.5P
Seattle, Washington 92.0713:04.0 0:02:46.0P
Duluth, Minnesota 99.9713:39.7 0:03:21.7Pdiff
San Francisco, California 100.5213:42.1 0:03:24.1Pdiff
Bangor, Maine 101.2013:45.1 0:03:27.1Pdiff
Ottawa, Canada 101.4013:46.0 0:03:28.0Pdiff
Wellington, New Zealand 103.2213:54.1 0:03:36.1Pdiff
Boston, Massachusetts 103.9513:57.3 0:03:39.3Pdiff
Golden, Colorado 104.5914:00.2 0:03:42.2Pdiff
Los Angeles, California 105.4514:04.0 0:03:46.0Pdiff
New York, New York 105.9014:06.0 0:03:48.0Pdiff
Philadelphia, Pennsylvania 106.7714:09.8 0:03:51.8Pdiff
Washington, D.C. 107.9814:15.2 0:03:57.2Pdiff
Wichita, Kansas 108.1514:16.0 0:03:58.0Pdiff
St. Louis, Missouri 108.1614:16.0 0:03:58.0Pdiff
Phoenix, Arizona 108.3514:16.9 0:03:58.9Pdiff
Albuquerque, New Mexico 108.6014:18.0 0:03:60.0Pdiff
Knoxville, Tennessee 111.1414:29.2 0:04:11.2Pdiff
Brownsville, Texas 119.6515:07.0 0:04:49.0Pdiff
Miami, Florida 121.2315:14.0 0:04:56.0Pdiff
Mexico City, Mexico 125.4915:32.9 0:05:14.9Pdiff
San Juan, Puerto Rico 126.0015:35.2 0:05:17.2Pdiff
Palmer Station, Antarctica 143.6816:53.7 0:06:35.7Pdiff
Lima, Peru 158.1719:52.8 0:09:34.8PKPdf

Travel Time Information and Calculator

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