Anonymous ID: 314ceb Oct. 8, 2021, 5:14 p.m. No.14749127   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun   >>9135

>>14749014

It's standard atmospheric behaviour. The rings are due to the pulsating nature of the eruption, with the bursts of energy resulting in more heat and gas creating the rings when the altitude is reached where warmer air above creates an inversion layer forcing the rings outward.