Mt. Rainier, harboring more glacial ice than any other peak in the lower 48, gives off the sounds of the glaciers’ movements. These rumblings make it difficult to detect noises that portend a volcanic eruption. (Image Source: glennwilliamspdx/Flickr Creative Commons CCBY)
Scientists trying to detect volcanic activity need to listen for tiny earthquakes that may portend an eruption. The trouble is, the noise these earthquakes — so small that humans can’t feel them and they don’t register on the Richter scale — can be matched or overwhelmed by the tiny earthquakes that come from shifting glaciers. ESS‘ Kate Allstadt and Steve Malone share their research challenges; read more here!
Want to learn about our region’s volcanoes? ESS‘ Steve Malone will be sharing their secrets, and talking about a new project to visualize the magma underneath Mt. St. Helens, on October 16th. Check it out!
A team of scientists from the Joint Institute for the Study of the Atmosphere and Ocean disembarked Thursday from the Port of Astoria with one of the world’s most advanced underwater robots, Jason. They will be researching the April 2011 eruption of the axial seamount, a submarine volcano located 300 miles west of Cannon Beach on the Juan De Fuca Ridge in the Pacific Ocean. Read more about this adventure here!
A study of Mount St. Helens aims to look deep — all the way down to the zone where tectonic plates collide and magma rises. ESS‘ John Vidale, one of the researchers, says the study is one of the first to look that far below a volcano. Read (slightly) more here!
Scientists dissecting the remains of the disastrous 1980 explosion of Mt. St. Helens in Washington state say that crystal formations trapped in volcanic rocks hold important clues about when a magma-loaded mountain is about to blow — a discovery that could help volcanologists make more accurate predictions about future eruptions. ESS‘ Olivier Bachmann is quoted. Read more here!
What do lightning and volcanoes have in common? The World Wide Lightning Location Network knows — and its tracking developing volcanoes across the globe. ESS’ John Holzworth heads up the network. Read more here.