Palena volcano is a group of 5 cinder cones in southern Chile NE of Melimoyu volcano. The cones are aligned along a NNE trend and are of Holocene age, i.e. younger than 11,700 years. The middle cone is called Cerro Palena and lends its name to the whole group.
The eruption OR wildfire plume near Palena volcano yesterday (photo: A Gillmore / Twitter)
A pilot reported a volcanic ash cloud from the Palena volcano last evening. A picture from Andres Gillmore on twitter shows what in fact looks similar to an eruption plume, and that would mean that after Chaiten in 2008, a second volcano with no known historic eruptions has become active. ...more
But at this point, it seems more likely that the ash cloud is from a large wildfire instead, in other words, there is no new volcanic eruption. SERNAGEOMIN has not reported on the event which supports this interpretation. [less]
Intraplate volcanism: A third tectonic setting where volcanism occurs is believed to be the result of mantle plumes and not directly related to plate boundaries. So called hot spot volcanoes fall into this category.
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