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The Eastern Tennessee seismic zone (ETSZ), also known as the East Tennessee seismic zone and the Southern Appalachian seismic zone, is a geographic band stretching from northeastern Alabama to southwestern Virginia that is subject to frequent small earthquakes. The ETSZ is one of the most active earthquake zones in the eastern United States. [1 ...
Neither the northern nor the southern border of Tennessee follows a geographic feature. The northern border was originally defined as the parallel 36°30′ north and the Royal Colonial Boundary of 1665, but due to faulty surveys, the border begins north of this line in the east, and to the west, gradually veers north with multiple minute ...
On 30 November 1973, at 07:48 UTC (02:48 EST), a M w 4.7 earthquake struck 1 km (0.62 mi) north-east of Alcoa, in the U.S. state of Tennessee. [1] The earthquake was felt 2,100 km 2 (810 sq mi) in the area. [2] It was the most powerful known earthquake generated by the Eastern Tennessee seismic zone.
Tennessee’s middle region has only experienced a handful of 2.5 magnitude or higher earthquakes between 1924 and 2024, including Murfreesboro in 1997 and Franklin in 2001, according to the USGS ...
These border irregularities were caused by changes in the Mississippi River during the 1812 New Madrid earthquake or other river changes: Over a period of about 24 hours on 7 March 1876, the Mississippi River abandoned its former channel that defined the Tennessee-Arkansas border, and established a new channel east of Tennessee's Reverie and ...
The magnitude 4.4 earthquake that rattled Los Angeles on Monday was centered within one of the region's most potentially destructive fault systems, one capable of producing a magnitude 7.5 ...
The Statewide California Earthquake Center (SCEC) is a collaboration of more than 1,000 scientists across 100 research institutions focused primarily on conducting research on earthquakes in Southern California and elsewhere by gathering data, conducting theoretical studies, and performing computer simulations; integrate information into a comprehensive, physics-based understanding of ...
A full fault rupture, estimated to be around a 7.5 magnitude, could kill between 3,000 and 18,000 people, according to US Geological Survey and Southern California Earthquake Center.