Dayton Business Journal...
Earthquake shakes Dayton region
Tuesday, August 23, 2011 

An earthquake shook much of the Dayton region just before 2 p.m. Tuesday afternoon, with workers in some buildings in downtown evacuating. 

Reuters reports a nearly 6.0 magnitude quake struck in Virginia and shook much of Washington, D.C., and up the east coast to New York, with the Pentagon and U.S. Capitol being evacuated, according to reports on Twitter. 

The quake was felt from North Carolina to Boston, as well as in Toronto. CNN reported that there were no immediate reports of injuries in Washington. 

The Associated Press reports that two nuclear reactors were taken offline near the quake site in Virginia, but that no damage was reported. Reuters also indicates that the Federal Aviation Administration  has grounded all flights in Washington, Philadelphia and New York after the quake. 

There were no immediate reports of damage to any structures in the Dayton region. 

Other reports on Twitter indicated the Huntington Bank Tower in downtown Columbus was being evacuated. The AP reports that buildings in North Carolina were evacuated. 

The AP also said the U.S. Geological Service reported the earthquake was 3.7 miles deep with a 5.9 magnitude and was centered near Mineral, Virginia. Click here for info from the USGS. 

This comes after a 5.3 magnitude earthquake struck Colorado this morning. 

The most recent earthquake to shake the Dayton region was June 23, 2010, when a quake in Canada just before 2 p.m. that day also was felt in the Dayton region. 

Just as with today, last year’s quake prompted workers in several offices downtown to spill out into the streets, talking about the quake that shook furniture on upper floors of office buildings. Some of the people said they intially felt dizzy, and thought they were getting sick until they realized that window shades and other office items were shaking too. 

There were no reports of damage then either. 

Read it with links at the Dayton Business Journal