It's been more than 40 years since the Calbuco volcano erupted in southern Chile. But now it's done it twice — generating striking images and concerns over the effects of both the lava and a mammoth cloud of ash.
That column of ejected ash measures nearly 7 miles, says the National Mining and Geology Service, citing a "flyby" that was made early Thursday. In its latest update, the agency says volcanic activity is finally declining — but that a state of emergency remains for a 12-mile area.
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