| Title | Felt reports and damage accounts for the 1925 moment magnitude 6.2 Charlevoix, Quebec, earthquake |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Lamontagne, M ;
Burke, K B S; Archambault, P; Olson, L |
| Source | Geological Survey of Canada, Open File 8775, 2021, 30 pages, https://doi.org/10.4095/328196  Open Access |
| Image |  |
| Year | 2021 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication is related to the following
publications |
| File format | readme
|
| File format | pdf; rtf; xlsx (Microsoft® Excel®); tif; jpg; bmp; kmz (Google® Earth®) |
| Province | Quebec; Ontario; New Brunswick; Newfoundland and Labrador; Nova Scotia; Prince Edward Island |
| NTS | 11; 12; 20; 21; 22; 23; 30; 31; 32; 33; 40; 41; 42; 43; 52; 53 |
| Area | Charlevoix; Kamouraska; St. Lawrence River; Shawinigan |
| Lat/Long WENS | -97.0000 -60.0000 55.0000 35.0000 |
| Subjects | geophysics; Science and Technology; Nature and Environment; Health and Safety; seismology; seismicity; seismic risk; earthquakes; earthquake risk; earthquake magnitudes; earthquake damage; epicentres;
history; photography; aftershocks; 1925 Magnitude 6.2 Charlevoix Earthquake; Reports; Buildings; Archives; Digitization; Newspapers; Databases; Geographic data; Geographic information systems |
| Illustrations | photographs; geoscientific sketch maps; tables; location maps |
| Program | Public
Safety Geoscience Intraplate Earthquakes |
| Released | 2021 04 15 |
| Abstract | The 28 February 1925 magnitude 6.2 Charlevoix Earthquake occurred at 9:19 p.m. local time. The epicenter was beneath the St. Lawrence River in the Charlevoix-Kamouraska area. The shock was felt at more
than 1000 km from the epicenter. In the following weeks, dozens of aftershocks continued to shake the area, keeping residents on both sides of the St. Lawrence River on high alert. Damage was reported on both sides of the River in the epicentral
zone, as well as in the cities of Québec and Shawinigan. In these areas, chimneys and masonry buildings proved particularly sensitive to the ground vibrations. The 1925 earthquake is one of five known moment magnitude 5.5-7 events that have occurred
in the Charlevoix Seismic Zone (CSZ) between 1663 and present. This Open File Report presents the macroseismic information and its ratings on the Modified Mercalli Scale for a total of more than 600 locations in Canada and some 180 in the United
States (from NOAA). This report builds on the macroseismic information published in Cajka (1999) and adds descriptive information for each locality where damage occurred. For each location, the felt information is rated on the Modified Mercalli
intensity (MMI) scale and tabulated in a Microsoft Excel sheet. Numerous images of clippings of newspaper articles are included and the descriptive text is added to the database. In addition, photographs of the earthquake damage are included. The
Open File also provides a GoogleEarth kmz file that allows the felt information reports to be viewed in a spatial tool. |
| Summary | (Plain Language Summary, not published)
The 28 February 1925 magnitude 6.2 Charlevoix Earthquake occurred at 9:19 p.m. local time. This Open File Report presents the macroseismic information
and its ratings on the Modified Mercalli Scale for a total of more than 600 locations in Canada and some 180 in the United States (from NOAA). For each location, the felt information is rated on the Modified Mercalli intensity (MMI) scale and
tabulated in a Microsoft Excel sheet. Numerous images of clippings of newspaper articles are included and the descriptive text is added to the database. In addition, photographs of the earthquake damage are included. The Open File also provides a
GoogleEarth kmz file that allows the felt information reports to be viewed in a spatial tool. |
| GEOSCAN ID | 328196 |
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