Alaska’s Sitkin Volcanoes


You might already have heard of one of the two Alaskan “Sitkin” volcanoes, since headline writers at a few news websites are giving Great Sitkin Volcano the “about-to-explode” treatment.

Indeed, the Alaska Volcano Observatory (AVO) recently raised the aviation code on Great Sitkin Volcano to Yellow, since it is having a period of elevated seismicity.

Again.

Great Sitkin has been having swarms of small earthquakes off and on since 2016. There also was a small ash emission in early June.

Magma probably has moved into the volcano. But there is no sure way to predict exactly what Great Sitkin Volcano will do in coming weeks and months, as volcanologists told local journalists late last year.

Instead of going by the doom-and-gloom headlines, let’s get to know these volcanoes a little better.

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