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#volcano

41 posts24 participants2 posts today

"They discovered a series of underwater mountains near Samoa that were much older than expected... By analyzing the age & chemical makeup of ancient rock samples...the researchers concluded that these mountains were part of a much older segment of the Louisville volcanic track, which Finlayson compared to a volcano’s “footprints.” As the Earth’s crust (tectonic plates) moves over hotspots, they form these volcanic tracks."

Link: cmns.umd.edu/news-events/news/

USGS Cascades Volcano Observatory CVO Open House appears to still be on for May 10 (just over a week from this post) 10am-4pm Pacific Time. Their offices are in the Fisher's Landing district of Vancouver, Washington (northern Portland, Oregon metro area). CVO was established 45 years ago when Mt St Helens began erupting in 1980, and had scientists & equipment monitoring more closely in time for the May 18 explosion. usgs.gov/observatories/cvo/new #volcano🌋 #geology🪨 #PNW