Posted in Web Earthquakes in Montréal, Quebec, Canada – Biggest Magnitude May 11, 2020 4.2 magnitude earthquake 1975-06-09 18:39:23 UTC at 18:39 June 09, 1975 UTC Location: Epicenter at 44.896, -73.574 14.2 km from Champlain (8.2 miles) https://earthquaketrack.com/ca-10-montreal/biggest