5.9 magnitudeearthquakeshakes eastern coast. A strongearthquakehas shaken the mid-Atlantic region Tuesday afternoon, hit by North Carolina, Ottawa, Canada. Theearthquake, a provisional 5.9 on 1:51 pm ET taken, measured and took the survey in 45 seconds, according to the U.S. Geological Survey. Shook buildings for offices and homes and rattled residents. The USGS has warned aftershocks.