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Seismic activity and structural features in the Charlevoix region, Quebec

Maurice Lamontagne
Seismic activity and structural features in the Charlevoix region, Quebec
Canadian Journal of Earth Sciences = Revue Canadienne des Sciences de la Terre (November 1987) 24 (11): 2118-2129

Abstract

The Charlevoix region is historically the most active earthquake zone in Eastern Canada. Understanding the links between its seismicity and the faults of the region is important for the assessment of earthquake risk along the St. Lawrence Valley. The region has been monitored by a microseismic array since 1977, yielding accurate locations of the hypocenters. Previous analyses of data from the array indicated a relationship between the earthquakes and the St. Lawrence Valley paleorift faults. As a sequel to previous studies, the relationships between the seismic activity and the faults of the region were reexamined through the use of the composite P-nodal solutions, in an effort to clarify the nature of faulting in the seismic zone. The main objectives of this paper are to delineate the details of faulting within the Charlevoix region and to determine the effect of the impact crater on the nature of faulting in this area.--Modified journal abstract.


ISSN: 0008-4077
EISSN: 1480-3313
Coden: CJESAP
Serial Title: Canadian Journal of Earth Sciences = Revue Canadienne des Sciences de la Terre
Serial Volume: 24
Serial Issue: 11
Title: Seismic activity and structural features in the Charlevoix region, Quebec
Author(s): Lamontagne, Maurice
Affiliation: Geol. Surv. Can., Geophys. Div., Ottawa, ON, Canada
Pages: 2118-2129
Published: 198711
Text Language: English
Summary Language: French
Publisher: National Research Council of Canada, Ottawa, ON, Canada
References: 22
Accession Number: 1988-004235
Categories: Engineering geologySeismologyGeomorphologyStructural geology
Document Type: Serial
Bibliographic Level: Analytic
Annotation: Geol. Surv. Can.; Contrib. No. 34386
Illustration Description: illus. incl. sketch maps
N47°15'00" - N48°00'00", W70°30'00" - W69°30'00"
Country of Publication: Canada
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 1988
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