Ottawa earthquake felt widely because of old bedrock

By Becky OskinLiveScienceThe moderate magnitude-4.4 earthquake that rattled Canada and the Northeast Friday morning 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 between the two regions, according to the U.S. Geological Survey (USGS). East of the Rockies, earthquakes of the same size are oft...