Link to USGS home page.
Earthquake Hazards Program


Wednesday, April 09, 2008 at 12:46:12 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
Travel Time
Arrival Time
Brisbane, Australia 16.17 3:41.912:49:59.9Pn
Wellington, New Zealand 21.61 4:42.712:51:00.7P
Agana, Guam 40.98 7:34.012:53:52.0P
Honolulu, Hawaii 52.60 9:04.512:55:22.5P
Tokyo, Japan 62.0210:10.912:56:28.9P
Beijing, China 77.2011:44.312:58:02.3P
Palmer Station, Antarctica 84.1612:21.312:58:39.3P
San Francisco, California 86.5612:33.212:58:51.2P
Anchorage, Alaska 87.6412:38.512:58:56.5P
Los Angeles, California 87.8612:39.512:58:57.5P
Seattle, Washington 91.4512:56.312:59:14.3P
Phoenix, Arizona 92.3013:00.212:59:18.2P
Kathmandu, Nepal 93.6913:06.612:59:24.6P
Albuquerque, New Mexico 97.0913:21.912:59:39.9P
Mexico City, Mexico 98.3213:27.412:59:45.4Pdiff
Golden, Colorado 99.6713:33.412:59:51.4Pdiff
Brownsville, Texas 101.7513:42.613:00:00.6Pdiff
Wichita, Kansas 105.0413:57.313:00:15.3Pdiff
Lima, Peru 107.7114:09.113:00:27.1Pdiff
Duluth, Minnesota 110.5214:21.613:00:39.6Pdiff
St. Louis, Missouri 110.6814:22.313:00:40.3Pdiff
Knoxville, Tennessee 114.2714:38.213:00:56.2Pdiff
Miami, Florida 116.8714:49.813:01:07.8Pdiff
Washington, D.C. 120.9715:08.013:01:26.0Pdiff
Ottawa, Canada 121.8915:12.013:01:30.1Pdiff
Philadephia, Pennsylvania 122.4415:14.513:01:32.5Pdiff
New York, New York 123.3215:18.413:01:36.4Pdiff
Boston, Massachusetts 125.4315:27.813:01:45.8Pdiff
Bangor, Maine 126.8415:34.113:01:52.1Pdiff
San Juan, Puerto Rico 128.3315:40.613:01:58.6Pdiff
Nairobi, Kenya 128.3415:40.713:01:58.7Pdiff
Moscow, Russia 129.2315:44.613:02:02.6Pdiff
Bergen, Norway 138.1916:24.413:02:42.4Pdiff
London, England 147.6019:30.613:05:48.6PKPdf
Rome, Italy 150.5319:35.313:05:53.2PKPdf

Travel Time Information and Calculator

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

FirstGov button  Take Pride in America button