A 5.2-magnitude earthquake Friday morning near the Ontario-Quebec line rattled buildings both Canadian provinces and was felt across upstate New York, from Buffalo to the Vermont border.
Canada's government agency that monitors earthquakes said the quake's epicenter was about 11 miles northeast of Shawville, Quebec, about an hour's drive outside Ottawa.
A 4.1-magnitude aftershock followed 10 minutes later, according to Natural Resources Canada.
Enterprise readers felt the tremor in Saranac Lake, Tupper Lake, Lake Placid, Bloomingdale, Paul Smiths, Watertown, Malone and Syracuse, according to their posts on the newspaper's Facebook page.
"I do believe we just had an earthquake. Any one else feel it," the town of Tupper Lake's Facebook page asked, noting that workers at the town hall felt it.
"I felt it in my classroom a the end of the 3rd period in (Lake Placid Middle High School)," Jamie Sheffield said on the Enterprise Facebook page.
It was felt as far west as Toronto, Canada's largest city, but no damage was immediately reported.
Local media outlets in northern New York said people in communities along the St. Lawrence River and as far east as Lake Champlain on New York-Vermont border reported feeling their homes shake.
There are also reports from residents of Buffalo and surrounding suburbs who say they felt their houses sway and the ground shake for less than one minute. Rochester and Syracuse media outlets also report that the quake was felt in those areas.
Gov. Andrew Cuomo issued the following statement on the quake: "The State Office of Emergency Management continues to monitor effects of the earthquake that occurred this morning near Ottawa, Canada, and was felt throughout parts of New York State. At this time, there have been no reports of damage to any of the state's critical infrastructure."
Twitter erupted with reports of buildings shaking in Ottawa for several seconds. Ontario's premier, who lives in Toronto, tweeted that her house was shaking.