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1985 Nahanni earthquakes 
Summary
The 1985 Nahanni earthquakes is the name for a continuous sequence of earthquakes that began in 1985 in the Nahanni region of the Northwest Territories, Canada.[2] The largest of these earthquakes occurred on December 23, reaching 6.9 on the moment magnitude scale.[2] This is one of the most significant earthquakes in Canada during the 20th century.[3] The earthquakes had a long succession of aftershocks and jolts.[2] The earthquakes amazed both the general public and the earth science community and have been felt in the Yukon, Alberta, Saskatchewan, British Columbia, and southeastern Alaska.[2]
   | |
| UTC time | 1985-12-23 05:16:05 |
|---|---|
| ISC event | 509142 |
| USGS-ANSS | ComCat |
| Local date | December 22, 1985 |
| Local time | 22:16:05 |
| Magnitude | 6.9 Mw |
| Depth | 6.0 km (3.7 mi) |
| Epicenter | 61°31′N 125°17′W / 61.51°N 125.29°W |
| Type | Reverse |
| Areas affected | Canada |
| Max. intensity | MMI VI (Strong) [1] |
| Aftershocks | Yes |
| Casualties | None |
See also edit
References edit
- ^ "M 6.9 - Northwest Territories, Canada". earthquake.usgs.gov. U.S. Geological Survey. Retrieved 6 March 2022.
- ^ a b c d Natural Resources Canada: Rock and Roll in the N.W.T.: The 1985 Nahanni Earthquakes Archived 2009-02-10 at the Wayback Machine
- ^ Natural Resources of Canada: Significant Earthquakes in Canada Archived 2008-10-13 at the Wayback Machine
Sources
- Boore, D.; Atkinson, G. M. (1989), "Spectral scaling of the Nahanni earthquakes" (PDF), Bulletin of the Seismological Society of America, 79 (6): 1736–1761, doi:10.1785/BSSA0790061736
- Wetmiller, R. J.; Horner, R. B.; Hasegawa, H. S.; North, R. G.; Lamontagne, M.; Weichert, D. H.; Evans, S. G. (1988), "An analysis of the 1985 Nahanni earthquakes", Bulletin of the Seismological Society of America, 78 (2): 590–616, archived from the original on 2015-09-23, retrieved 2014-04-24
External links edit
- The International Seismological Centre has a bibliography and/or authoritative data for this event.