Sinkholes in Quebec City neighbourhood multiply and baffle experts - The Globe and Mail - http://www.theglobeandmail.com/news...
"Sinkholes – some big enough to swallow a car – are collapsing the earth in a Quebec City neighbourhood and leaving experts baffled. About 40 of the holes ranging between six metres wide and about five metres deep have appeared in the past week, prompting the city to issue an evacuation order." - Brian Sullivan