I'm glad these earthquakes don't bother the Maffie concrete. I mean, who could tell? One more chunk falls, big deal. :)
So, this is a brand new M3.7 (4.2 with HST). As we know, Montreal is just one city in the East, living with the 1in500 earthquake hanging over its head. If a Virginia M6 happened here, I think we would hear most about Leda Clay landslides. A lot of Montreal is on hard rock or clay, but the infrastructure is terrible. Thus I rate its seismic capacity as very low. An earthquake during winter would be too terrible to contemplate.