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The USGS says earthquakes become destructive at a magnitude of 4.0 to 5.0, depending on variables. A 5.3-magnitude is considered a moderate quake, the USGS says.
The agency issued a green alert, meaning there is a low likelihood of casualties and damage.
The earthquake rumbled at a depth of about 5.7 miles, which is considered a shallow quake. Quakes shallower than 43 miles tend to be more destructive than deeper ones, the USGS says.
Sparta is about 100 miles north of Charlotte.
The area sits among three seismic zones, in Charleston, South Carolina, eastern Tennessee and central Virginia. Four smaller quakes, all 2.6-magnitude or lower, rumbled near Sparta on Saturday and early Sunday.
Two more temblors struck a few miles from Seymour, Tennessee, last weekend, the USGS says.
Five smaller quakes, all 2.6-magnitude or lower, rumbled near Sparta on Saturday and early Sunday. Two more temblors struck a few miles from Seymour, Tennessee, last weekend, the USGS says.
The major faults of Western North Carolina discovered thus far are ancient, and none are known to be active. Most were formed during the Paleozoic mountain building episodes, around 480 to 300 million years ago. These faults are not visible as breaks in the ground surface due to their antiquity, and similarly the known faults do not correspond with the locations of historic earthquake epicenters.
The most significant fault in the region is the Brevard fault zone, which extends from Alabama to Virginia across North Carolina, where it coincides with a long, linear topographic low. Another major fault in the region is the Linville Falls fault.
originally posted by: itswhatev
MSN article
The USGS says earthquakes become destructive at a magnitude of 4.0 to 5.0, depending on variables. A 5.3-magnitude is considered a moderate quake, the USGS says.
The agency issued a green alert, meaning there is a low likelihood of casualties and damage.
The earthquake rumbled at a depth of about 5.7 miles, which is considered a shallow quake. Quakes shallower than 43 miles tend to be more destructive than deeper ones, the USGS says.
Sparta is about 100 miles north of Charlotte.
The area sits among three seismic zones, in Charleston, South Carolina, eastern Tennessee and central Virginia. Four smaller quakes, all 2.6-magnitude or lower, rumbled near Sparta on Saturday and early Sunday.
Two more temblors struck a few miles from Seymour, Tennessee, last weekend, the USGS says.
Had a little rumble here on the east coast this morning. It may be relatively small for anyone on the west coast but, as we dont tend to be wuite as seismically active over here it always piques my interest whenever we have any at all bigger than say 1 or 2 on the Richter. Hadnt seen any post about it yet,which again I realize relative to most areas that are more active it's not really a huge deal, but was kind of surprised solely because ATS used to be "on top" of even minor activity.
Saw on twitter thst there were apparently 2 smaller foreshocks in the 2 range aswell