Montreal actually sits on a continental 鈥渨eak spot,鈥� explained Christie Rowe, a professor of Earth and Planetary Sciences at 9I制作厂免费 and the Canada Research Chair in Earthquake Geology, making it prone to seismic activity.
鈥淭he St. Lawrence lies in a very old fault zone. It鈥檚 pretty wide. It goes from the Laurentians basically down to the U.S. border. And the fault formed when the Atlantic Ocean was opening, so hundreds of millions of years ago,鈥� she said. 鈥淏ut faults in continents never fully heal. So it鈥檚 always this weak spot.鈥�
