Neotectonic faulting in metropolitan Toronto: Implications for earthquake hazard assessment in the Lake Ontario region: Comment and Reply

The Seismicity of the Western Lake Ontario Area: Results from the Southern Ontario Seismic Network (SOSN), 1992-2001

“…Seeber and Armbruster (1993) relocated some of the historic (prior to 1960) events south of Lakes Erie and Ontario using intensity evaluations. In the past this lack of precision has made it difficult to reach any clear agreement as to the nature of the seismic hazard in the area (e.g., Milne and Davenport, 1969;Basham and Adams, 1989;Martini and Bowlby, 1991;Adams and Basham, 1991;Mohajer et al, 1992;Adams et al, 1993;Eyles et al, 1993;Jacobi and Fountain, 1993;Mohajer, 1993;Seeber and Armbruster, 1993;Thomas et al, 1993;Hutchinson et al, 1993; Atomic Energy Control Board Report, 1995;Adams et al, 1995;Frankel, 1995;Wallach et al, 1998). Mohajer (1993) Seismicity M a p For Period 1 9 7 0 - (Stevens, 1994).…”

Evolution of faulting and paleo-stress field within the Ottawa graben, Canada

“…The interchange in the positions of σ 1 and σ 2 during D 3 may be the result of long-term uplift of rocks, aided by extension due to regional compression associated with NE-trending σ 1 , as suggested for the recent normal faults in eastern Metro Toronto (Mohajer et al, 1992Wallach, 1994), and in southeastern Lake Ontario (Thomas et al, 1993). Adams et al (1993) and Godin et al (2002Godin et al ( , 2003 presented alternative interpretations and argued that these normal faults might have resulted from glaciotectonism.…”