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Geological Survey of Canada Open File Report 3279, 1996. ABSTRACT. On Friday November 25, 1988 the largest earthquake in eastern North America in 53 years occurred 35 km south of Chicoutimi, Québec and 75 km north of the Charlevoix-Kamouraska earthquake zone.
- Location and Magnitude
- Interesting Features
- Damage
- References
Local Date and Time: November 25, 1988 at 6:46:04 pm Eastern timeMaximum Intensity: Modified MercalliVIIIOn Friday November 25, 1988 the largest earthquake in eastern North America in 53 years occurred 35 km south of Chicoutimi, Québec and 75 km north of the Charlevoix-Kamouraska earthquake zone. This earthquake, referred to as the Saguenay earthquake, was located in a relatively aseismic region. It was characterized by a single foreshock, relatively ...
Despite the magnitude of the earthquake there was no loss of life attributed to the event and no structural damage was observed. The Saguenay event did point out the poor performance of unreinforced masonry in many structures and the susceptibility of embankments to stability failures. 1. Chicoutimi (about 40 km from the epicentre).Damage to ceilin...
Drysdale, J. and Cajka, M., 1989. Intensity Report of the November 25, 1988 Saguenay, Quebec Earthquake. GSC Open File Report #3279. https://doi.org/10.4095/207797.Lamontagne, M., 1991. Les tremblements de terre au Québec. Collection Environnement et Géologie, Volume 12, Bouchard, M.A., Bérard, J. et Delisle, C.E., eds. Association professionnelle des géologu...Lamontagne, M. and Bruneau, M., 1993. Impact of Eastern Canadian Earthquakes of 1925, 1929, 1935, and 1944. Earthquake Engineering Research Institute (EERI) slide set. 27 slides, 35 mm.Mitchell, D., Tinawi, R. and Law, T., 1989. "The 1988 Saguenay Earthquake - A Site Visit Report.". GSC Open File Report #1999. https://doi.org/10.4095/130606."The November 25, 1988, moment magnitude 5.9 (Mw) Saguenay earthquake is one of the largest eastern Canadian earthquakes of the 20th century. It was preceded by a magnitude (MN) 4.7 foreshock and followed by very few aftershocks considering the magnitude of the main shock.
- Geological Survey of Canada, issuing body.
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- Open file, 2816-7155 ; 8803
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The Saguenay earthquake of 25 November 1988 occurred close to the southern margin of the Saguenay Graben in southern Quebec. It was caused by almost purely dip-slip faulting centered at a depth of 26 km with a P axis oriented northeast-southwest.
- Paul G. Somerville, James P. McLaren, Chandan K. Saikia, Donald V. Helmberger
- 1990
"The most significant earthquake in over fifty years in eastern North America took place on November 25, 1988. The event was centered north of Quebec City in the Province of Quebec, Canada.
Considerable damage was caused at Quebec City, Trois-Rivieres and Shawinigan Falls. Only four years later, in 1929, a submarine earthquake (magnitude 7.2) beneath the Grand Banks south of Newfoundland caused an underwater landslide. This broke 12 trans-Atlantic cables in 28 places and set up a seismic sea-wave (tsunami), which drowned 27 people.
Feb 1, 1991 · Abstract. The November 25, 1988, Saguenay earthquake ( mb 5.9) occurred at 23:46:04.5 U.T. outside previously known seismic source-zones in eastern Canada. The event is also peculiar due to its 29 km depth in the lower crust of the “stable” Precambrian craton of the Canadian Shield, its low aftershock activity (84 earthquakes over 6 months ...
