 A stretch of Washington State Route 302 near Allyn, Washington, damaged after the earthquake | |
  Olympia Seattle  | |
| UTC time | 2001-02-28 18:54:32 |
|---|---|
| ISC event | 1780664 |
| USGS-ANSS | ComCat |
| Local date | February 28, 2001 |
| Local time | 10:54:32 a.m.[1] |
| Magnitude | 6.8 Mw[1] |
| Depth | 57 km (35 mi)[1] |
| Epicenter | 47°11′N 122°40′W / 47.19°N 122.66°W[1] |
| Type | Normal[2] |
| Areas affected | Pacific Northwest |
| Total damage | $1–4 billion[3] |
| Max. intensity | MMI VIII (Severe)[4] |
| Peak acceleration | 0.3 g[4] |
| Tsunami | No |
| Casualties | 1 dead (heart attack), 400 injured[3] |
The 2001 Nisqually earthquake occurred at 10:54:32 local time on February 28, 2001, and lasted nearly a minute.[5] The intraslab earthquake had a moment magnitude of 6.8 and a maximum Mercalli intensity of VIII (Severe). The epicenter was in the southern Puget Sound, northeast of Olympia, but the shock was felt in Oregon, British Columbia, eastern Washington, and Idaho.[6] This was the most recent of several large earthquakes that occurred in the Puget Sound region over a 52-year period and caused property damage valued at $1–4 billion. One person died of a heart attack and several hundred were injured.
- ^ a b c d Cite error: The named reference
ISC-GEMwas invoked but never defined (see the help page). - ^ Ichinose, G.A.; Thio, H.K.; Somerville, P.G. (2004). "Rupture process and near‐source shaking of the 1965 Seattle‐Tacoma and 2001 Nisqually, intraslab earthquakes". Journal of Geophysical Research: Solid Earth. 31 (10): n/a. Bibcode:2004GeoRL..3110604I. doi:10.1029/2004GL019668.
- ^ a b Cite error: The named reference
PAGER-CATwas invoked but never defined (see the help page). - ^ a b Cite error: The named reference
USGSwas invoked but never defined (see the help page). - ^ McNair-Huff, Rob & Natalie (2016). Washington Disasters. Rowman & Littlefield. p. 163. ISBN 978-1-4930-1322-7.
- ^ Cite error: The named reference
McDonoughwas invoked but never defined (see the help page).