BLACKEY, KY (11/10/12) – This morning at 11:08 CST, a 4.3 magnitude earthquake struck eastern KY.
According to the US Geological Survey (USGS), the quake’s epicenter was about 13Km (8 miles) west of Whitesburg, KY and was a relatively shallow event, occurring at a depth of about 11.7 miles.
There have been no reports of damage as a result of the shaking that could be felt as far away as Cincinnati and Atlanta.
The tectonic region where this morning’s event occurred is considered a Stable Continental Region.
“Most of North America east of the Rocky Mountains has infrequent earthquakes,” according to the USGS. “Here and there earthquakes are more numerous, for example in the New Madrid seismic zone centered on southeastern Missouri, in the Charlevoix-Kamouraska seismic zone of eastern Quebec, in New England, in the New York - Philadelphia - Wilmington urban corridor, and elsewhere. However, most of the enormous region from the Rockies to the Atlantic can go years without an earthquake large enough to be felt, and several U.S. states have never reported a damaging earthquake. The earthquakes that do occur strike anywhere at irregular intervals.”
The USGS went on to say that earthquakes in the region are usually felt over a wider geographical area, sometimes ten times as far as a similar west coast quake.
“A magnitude 4.0 eastern U.S. earthquake typically can be felt at many places as far as 100 km (60 mi) from where it occurred, and it infrequently causes damage near its source. A magnitude 5.5 eastern U.S. earthquake usually can be felt as far as 500 km (300 mi) from where it occurred, and sometimes causes damage as far away as 40 km (25 mi).”
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