Magnitude 4.0 ILLINOIS
Monday, April 21, 2008 at 05:38:29 UTC
Theoretical P-Wave Travel Times
These maps show 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).
| City | Distance (degrees) |
Travel Time (min:secs) |
Arrival Time UTC |
Phase |
|---|---|---|---|---|
| St. Louis, Missouri | 1.92 | 0:32.7 | 5:39:02.7 | Pn |
| Knoxville, Tennessee | 3.29 | 0:51.5 | 5:39:21.5 | Pn |
| Wichita, Kansas | 7.53 | 1:49.9 | 5:40:19.9 | Pn |
| Washington, D.C. | 8.45 | 2:02.4 | 5:40:32.4 | Pn |
| Duluth, Minnesota | 8.87 | 2:08.2 | 5:40:38.2 | Pn |
| Philadephia, Pennsylvania | 9.94 | 2:22.8 | 5:40:52.8 | Pn |
| New York, New York | 10.90 | 2:36.0 | 5:41:06.0 | Pn |
| Ottawa, Canada | 11.37 | 2:42.4 | 5:41:12.4 | Pn |
| Boston, Massachusetts | 13.33 | 3:09.2 | 5:41:39.2 | Pn |
| Golden, Colorado | 13.56 | 3:12.4 | 5:41:42.4 | Pn |
| Miami, Florida | 14.21 | 3:21.3 | 5:41:51.3 | Pn |
| Brownsville, Texas | 14.96 | 3:31.5 | 5:42:01.5 | Pn |
| Albuquerque, New Mexico | 15.45 | 3:38.0 | 5:42:08.0 | Pn |
| Bangor, Maine | 15.57 | 3:39.6 | 5:42:09.6 | Pn |
| Phoenix, Arizona | 20.24 | 4:35.3 | 5:43:05.3 | P |
| Mexico City, Mexico | 21.39 | 4:47.7 | 5:43:17.7 | P |
| Los Angeles, California | 24.87 | 5:22.7 | 5:43:52.7 | P |
| Seattle, Washington | 26.66 | 5:38.9 | 5:44:08.9 | P |
| San Francisco, California | 27.14 | 5:43.3 | 5:44:13.3 | P |
| San Juan, Puerto Rico | 27.44 | 5:46.0 | 5:44:16.0 | P |
| Anchorage, Alaska | 43.95 | 8:07.0 | 5:46:37.0 | P |
| Lima, Peru | 51.30 | 9:04.1 | 5:47:34.1 | P |
| Bergen, Norway | 58.92 | 9:59.2 | 5:48:29.2 | P |
| London, England | 59.76 | 10:05.0 | 5:48:35.0 | P |
| Honolulu, Hawaii | 61.70 | 10:18.3 | 5:48:48.3 | P |
| Rome, Italy | 72.12 | 11:24.7 | 5:49:54.7 | P |
| Moscow, Russia | 75.34 | 11:43.6 | 5:50:13.6 | P |
| Tokyo, Japan | 94.11 | 13:18.7 | 5:51:48.7 | P |
| Beijing, China | 98.89 | 13:40.2 | 5:52:10.2 | Pdiff |
| Palmer Station, Antarctica | 107.43 | 14:18.1 | 5:52:48.1 | Pdiff |
| Agana, Guam | 108.71 | 14:23.8 | 5:52:53.8 | Pdiff |
| Kathmandu, Nepal | 113.87 | 14:46.7 | 5:53:16.7 | Pdiff |
| Nairobi, Kenya | 117.39 | 15:02.3 | 5:53:32.3 | Pdiff |
| Wellington, New Zealand | 118.90 | 15:09.0 | 5:53:39.0 | Pdiff |
| Brisbane, Australia | 128.64 | 15:52.2 | 5:54:22.2 | Pdiff |
Travel Time Information and Calculator
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
