00000nam 2200000zi 4500 9.956684 CaOODSP 20251031142449 m o d f cr mn||||||||| 251024t20202020oncab ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn-qu v9v9 M183-2/8739E-PDF Lamontagne, Maurice, 1959- author. The 1791 magnitude (Mw) 5.5 earthquake, Charlevoix, Quebec : interpretation of macroseismic information / M. Lamontagne. [Ottawa] : Natural Resources Canada = Ressources naturelles Canada, 2020. ©2020 1 online resource (26 pages) : illustrations (some colour), maps (some colour). text txt rdacontent computer c rdamedia online resource cr rdacarrier Geological Survey of Canada open file, 2816-7155 ; 8739 ISSN of series supplied from ISSN Portal. Includes bibliographical references (pages 17-20). "The December 6, 1791 magnitude 6 Charlevoix earthquake occurred at approximately 8:00 p.m. local time (December 7, 1791, 01:00 U.T.). Based on felt reports, the epicentre of the main shock is located near the St. Lawrence River in the area enclosing on the North Shore, Baie St-Paul and the Île-aux-Coudres and on the south shore, the town of Kamouraska. These three places sustained the most damage from the earthquake, mostly to house wares and masonry chimneys. The churches of Bas-des-Éboulements (now St-Joseph-dela- Rive) and Kamouraska were damaged. In the following weeks, dozens of aftershocks continued to shake the epicentral area, keeping local residents on high alert. The 1791 earthquake is one of five known moment magnitude 5.5 to 7 events that have occurred in the Charlevoix Seismic Zone (CSZ) between 1663 and the present. Given that this earthquake occurred in the late 1700's and far from major cities, felt accounts and newspaper reports are limited in number. It was felt in Quebec City but not reported felt in Montreal, New England or New Brunswick. This Open File Report presents the macroseismic information and its ratings on the Modified Mercalli Scale for a total of nine locations in Canada. For each locality, the felt information is rated on the Modified Mercalli intensity (MMI) scale and tabulated in a Microsoft Excel sheet. The text of some of the newspaper accounts were copied. The Open File also provides a GoogleEarth kmz file that allows the felt information reports to be viewed in a spatial tool"--Abstract, page 1. Earthquakes Québec (Province) Charlevoix Region. Earthquake intensity Québec (Province) Earthquake damage Québec (Province) Tremblements de terre Québec (Province) Charlevoix (Région) Tremblements de terre Intensité Québec (Province) Dommages causés par les tremblements de terre Québec (Province) Geological Survey of Canada, issuing body. Open file (Geological Survey of Canada) 8739. (CaOODSP)9.506878 PDF 8.19 MB https://publications.gc.ca/collections/collection_2025/rncan-nrcan/m183-2/M183-2-8739-eng.pdf Open file report HTML N/A https://doi.org/10.4095/326946 Complete dataset