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Elevated seismicity under Great Sitkin volcano, alerts raised again, Alaska

1 июля 2018 No comments

Elevated seismicity under Great Sitkin volcano, alerts raised again, Alaska The Alaska Volcano Observatory raised the Aviation Color Code and Alert Level for Great Sitkin stratovolcano to Yellow/Advisory on July 1, 2018, following another increase in the number of earthquakes under the volcano. The last known eruptive episode of this... Read more...

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