| PRINCIPAL
EARTHQUAKE PARAMETERS (from University of Washington) ------------------------------- Magnitude : 6.8 Event Date & Time : 02/28/2001 10:54:33 AM PST 02/28/2001 18:54:33 UTC Location : 47.1525 N 122.7197 W 47 deg 9 min North 122 deg 43 min West |
Depth
: 33.0 miles / 52.4 km deep Location Quality : Excellent Number of readings : 56 Nearest seismograph: 4 miles/ 7 km 10.9 miles / 17.6 km NE of Olympia, WA 14.7 miles / 23.7 km WSW of Tacoma, WA 35.7 miles / 57.5 km SSW of Seattle, WA |
| Predicted
P-Wave Travel Times (from the USGS) |
||||
| City |
Distance (degrees) |
Travel Time (min:secs) |
Arrival Time UTC |
Phase |
| Golden, Colorado | 14.70 | 3:24.8 | 18:57:57.8 | Pn |
| Anchorage, Alaska | 21.03 | 4:39.3 | 18:59:12.3 | P |
| Ottawa, Canada | 32.15 | 6:22.5 | 19:00:55.5 | P |
| Mexico City, Mexico | 33.69 | 6:35.9 | 19:01:08.9 | P |
| Honolulu, Hawaii | 38.31 | 7:15.3 | 19:01:48.3 | P |
| San Juan, Puerto Rico | 54.06 | 9:19.0 | 19:03:52.0 | P |
| Bergen, Norway | 64.83 | 10:33.4 | 19:05:06.4 | P |
| Tokyo, Japan | 69.43 | 11:02.6 | 19:05:35.6 | P |
| London, England | 70.08 | 11:06.5 | 19:05:39.5 | P |
| Lima, Peru | 71.68 | 11:16.3 | 19:05:49.3 | P |
| Moscow, Russia | 76.17 | 11:42.5 | 19:06:15.5 | P |
| Beijing, China | 78.59 | 11:56.1 | 19:06:29.1 | P |
| Agana, Guam | 81.97 | 12:14.2 | 19:06:47.2 | P |
| Rome, Italy | 82.87 | 12:18.9 | 19:06:51.9 | P |
| Kathmandu, Nepal | 101.32 | 13:45.0 | 19:08:18.0 | Pdiff |
| Wellington, New Zealand | 104.05 | 13:57.1 | 19:08:30.1 | Pdiff |
| Palmer Station, Antarctica | 122.74 | 15:20.1 | 19:09:53.1 | Pdiff |
|
Nairobi, Kenya |
130.97 | 15:56.6 | 19:10:29.6 | Pdiff |
| Images (from various sources) |
|
 Map of Pacific Northwest and historic seismicity |
 3-D maps of event |
 Map of region with event highlighted (USGS Website) |
 University of Washington Image Archive |
 BH data from station COR in Corvallis, OR |
 LH data from station ANMO in Albuquerque, NM |
| General Information |
|
King County Home Page - King County has posted a substantial amount of information related to Wednesday's earthquake and its aftermath. Information for residents and businesses about reporting earthquake damage to the Federal Emergency Management Agency (FEMA) Information page about the earthquake (IRIS E&O) University of Washington report Southern California Earthquake Center Report - A Comparison of the February 28, 2001, Nisqually, Washington, and January 17, 1994, Northridge, California, Earthquakes Earthquake History of Washington from the USGS Earthquake History of Cascadia from the University of Washington Earthquake Hazards in Oregon and Washington from the University of Washington FAQ on EQs in Washington and Oregon from the University of Washington EQ Hazards in the Portland-Vancouver Area from the USGSIf you felt the quake, USGS would like to know.
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| Data Links |
|
Earthquake Clearinghouse Page - University of Washington PANGA (Pacific Northwest Geodetic Array) - Coseismic geodetic models and surface velocities will be posted here. Rensselaer Polytechnic Institute - GPS results Oregon State University - regional moment-tensor solution and the waveforms |
| Sounds |
|
Most people don't associate earthquakes with music. Ray Styles in Washington state is an exception. He converts earthquake data to music for fun. Here are two midi sound files created from data from the Nisqually Earthquake: |