Post #3994994

"A Massive Flow of Rock and Mud Tumbled Down Mount Rainier Centuries Ago. Scientists Pinpointed Its Date to Better Understand the Volcano’s Complex Threats" by @Smithsonianmag@flipboard.com - Communities downstream from Mt Rainier have lahar (volcanic mudflow) drills where residents walk to higher ground. One of those historic mudflows has been more precisely dated to 1507 as scientists learned how to correlate rock layers, tree rings & radiocarbon dating. https://www.smithsonianmag.com/science-nature/a-massive-flow-of-rock-and-mud-tumbled-down-mount-rainier-centuries-ago-scientists-pinpointed-its-date-to-better-understand-the-volcanos-complex-threats-180989162/ #volcano🌋 #geology #PNW