4.4 magnitude earthquake Tennessee: Strongest earthquake since 1973 hits near Decatur right across the river from Watts Bar Nuclear Plant

Products You May Like


An early morning earthquake in east Tennessee Wednesday was widely felt over the Southeast U.S. The magnitude 4.4 quake struck around 4:14 a.m. EST, centered about 7 miles north-northeast of Decatur, Tennessee, in Meigs County, about 55 miles west-southwest of Knoxville. And right across the river from Watts Bar Nuclear Plant

The M4.4 earthquake epicenter is situated right across the river from Watts Bar Nuclear Plant in Tennessee. Image via Twitter

It was followed about 12 minutes later by a magnitude 3.3 aftershock.

According to the U.S. Geological Survey, light shaking was observed over most of the Atlanta metro area, and a number of states from southern Alabama to South Carolina, North Carolina, and Kentucky. 

More than 5700 people reported feeling the earthquake on the USGS homepage summary. There were however no immediate reports of damage or injuries.

tennessee earthquake, tennessee earthquake december 12 2018, tennessee earthquake map, tennessee earthquake picture, tennessee earthquake video
M4.4 earthquake hits near Ducatur, Tennessee on December 12, 2018. Map via USGS

This quake was one of the strongest on record in east Tennessee, exceeded only by a November 30, 1973 near Maryville, south of Knoxville which lead to minor damage near the epicenter.

The quake appeared to occur along the Eastern Tennessee Seismic Zone, a southwest-to-northeast belt extending from Alabama to far southwest Virginia that is the second-most active quake zone in the central and eastern U.S. behind the more notorious New Madrid zone. 

A 2014 USGS study bumped a portion of the ETSZ to a higher risk of earthquakes, though not nearly as high as the New Madrid zone in the western part of Tennessee and other adjacent states.

tennessee earthquake, tennessee earthquake december 12 2018, tennessee earthquake map, tennessee earthquake picture, tennessee earthquake video
Ummary of the M4.4 earthquake that struck 11km NNE of Decatur, Tennessee on December 12, 2018.

Though quakes stronger than M4.7 have not been recorded in recent times, a 2017 study in the Bulletin of the Seismological Society of America found evidence of a M6 or stronger temblor along the ETSZ within the last 25,000 years.

Earthquakes in the central and eastern U.S. can be felt over an area more than 10 times larger than a similar magnitude quake in the West, according to the USGS. 

[USGS, USGS1Weather]





Source link

Products You May Like

Articles You May Like

Grim Study Shows 10 Years of ‘Carbon Offsets’ in California Had No Climate Benefit : ScienceAlert
We May Finally Know How Lightning Gets Its Zigzag Shape : ScienceAlert
Humans Keep Growing an Extra Artery in Their Arms, And This Is Why : ScienceAlert
Chilling Glimpse Into Our Future if We Survive Another Million Years : ScienceAlert
Mysterious Tendrils Inside The Brain May Control Our Perception of Time : ScienceAlert

Leave a Reply

Your email address will not be published. Required fields are marked *