CSZ earthquake epicentres (circles) for the period 1977-1997.
Earthquakes with magnitude equal or larger to 4 are shown as red circles.
Seismographs stations are shown as triangles.
B-B' and C-C' refer to the cross-sections below.
The base map shows the terrain elevation.
Black lines are the mapped geological faults of the area.
 
 

CSZ earthquake hypocentres (circles) for the period 1977-1997 seen on
vertical profiles parallel (top) and perpendicular (bottom) to the St. Lawrence River.
Earthquakes with magnitude equal or larger to 4 are shown as red circles.
Seismographs stations are shown as triangles.