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TitleMacroseismic information for the seven largest moderate earthquakes of the Charlevoix seismic zone, Quebec, between 1870 and 2021: February 3, 1902, M 4.5; September 30, 1924, M 5.2; January 08, 1931, M 4.9; October 19, 1939, M 5.3; October 14, 1952, M 4.5; August 19, 1979, M 4.8; March 6, 2005, M 4.7
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LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorLamontagne, MORCID logo; Archambault, P; Halchuk, S
SourceGeological Survey of Canada, Open File 8828, 2021, 61 pages, https://doi.org/10.4095/329135 Open Access logo Open Access
Image
Year2021
PublisherNatural Resources Canada
Documentopen file
Lang.English
Mediadigital; on-line
File formatreadme
File formatpdf; rtf; kmz (Google Earth); xlsx (Microsoft® Excel®); docx (Microsoft® Word®); jpg; png
ProvinceQuebec; New Brunswick; Ontario
NTS20; 21; 22; 30; 31; 32; 40; 41
AreaLa Malbaie; St. Lawrence River; Île aux Coudres; Île aux Lièvres; Rivière-du-Loup; Canada; United States of America
Lat/Long WENS -82.0000 -64.0000 51.0000 38.0000
Subjectsgeophysics; Science and Technology; Nature and Environment; Health and Safety; seismology; seismicity; seismic risk; seismic zones; earthquakes; earthquake risk; earthquake magnitudes; earthquake damage; epicentres; aftershocks; Charlevoix Seismic Zone; March 1, 1925, M 6.2 Charlevoix Earthquake; February 3, 1902, M 4.5 Charlevoix Earthquake; September 30, 1924, M 5.2 Charlevoix Earthquake; January 08, 1931, M 4.9 Charlevoix Earthquake; October 19, 1939, M 5.3 Charlevoix Earthquake; October 14, 1952, M 4.5 Charlevoix Earthquake; August 19, 1979, M 4.8 Charlevoix Earthquake; March 6, 2005, M 4.7 Charlevoix Earthquake; Modified Mercalli Intensity Scale; Newspapers; Digitized information
Illustrationslocation maps; tables; geoscientific sketch maps
ProgramPublic Safety Geoscience Intraplate Earthquakes
Released2021 12 07
AbstractThis Open File Report provides the available macroseismic information for the seven largest moderate earthquakes that occurred in the Charlevoix Seismic Zone between 1870 and 2021. These earthquakes and their moment magnitude (M) are: 1) February 3, 1902, M 4.5; 2) September 30, 1924, M 5.2; 3) January 08, 1931, M 4.9; 4) October 19, 1939, M 5.3; 5) October 14, 1952, M 4.5; 6) August 19, 1979, M 4.8; 7) March 6, 2005, M 4.7. Five, possibly six, of these seven earthquakes occurred in the northeast portion of the CSZ, where the largest event of the period, the 1925 M 6.2 earthquake, also occurred. For each locality where the earthquakes were felt, macroseismic information is given and interpreted on the Modified Mercalli Intensity Scale. The original mail questionnaires filled by postmasters for earthquakes no. 3, 4, 5 and 6 are lost. Consequently, the main sources of information are the newspaper accounts except for no. 7 for which web-based questionnaires are available. The macroseismic information from localities in Canada and in the US (from NOAA) are tabulated in Microsoft Excel spreadsheets. Most newspaper clippings that have macroseismic information are included. The Open File also provides Google Earth kmz files that allow the felt information reports to be viewed in a spatial tool.
Summary(Plain Language Summary, not published)
This Open File Report provides the available macroseismic information for six moderate earthquakes that occurred in the Charlevoix Seismic Zone between 1870 and 2021.For each locality where the earthquakes were felt, macroseismic information is given and interpreted on the Modified Mercalli Intensity Scale. Consequently, the main sources of information are the newspaper accounts except for no. 6 for which web-based questionnaires are available. The macroseismic information from localities in Canada and in the US (from NOAA) are tabulated in Microsoft Excel spreadsheets. Most newspaper clippings that have macroseismic information are included. The Open File also provides Google Earth kmz files that allow the felt information reports to be viewed in a spatial tool.
GEOSCAN ID329135

 
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