Why Was the Ottawa Earthquake Felt So Widely?
The moderate magnitude-4.4 earthquake that rattled Canada and the Northeast this morning (May 17) made a big impact thanks to old bedrock. Quakes on the East Coast are generally more widely felt than out West because of differences in the Earth's crust ...http://www.nbcnews.com/id/51919599/ns/technology_and_science-science/t/why-was-o...




