Just read about this on FB. Brad Travis was asking if anyone heard a loud boom & shakes in the Shoals. It was heard as far as Huntsville & Decatur. Some of the comments is that a steam line blew on Hwy. 20. Someone said a steam line blew at Ascend, someone else said it didn't.
Was also said the loud booms & shaking was likely caused by "frost quakes".
Did any of you hear/feel anything, & know what it was?