A 5.0-magnitude earthquake that rocked parts of Canada was felt as far south as Maryland on Wednesday.
Scientists say Ontario and Quebec are shaken by dozens of earthquakes each year, but usually they are too small to feel. But people all over the Canadian provinces felt Wednesday's quake.
The U.S. Geological Survey said it was a shallow quake, only 11.2 miles deep and centered 33 miles north of Ottawa.
The quake shook Ottawa so hard, the capitol building was evacuated.
"All of a sudden the place started to shake. Someone yelled 'Get out' and we went. Everything was moving. Some of my colleagues have experienced quakes here before and said this was the worst one," Senator Art Eggleton told Reuters.
Meanwhile, some residents couldn't help but notice that the quake came just as the G-20 and G-8 Summits are getting ready to meet in the Toronto area on Friday.
No injuries were reported from the shallow quake.