The Alaska Volcano Observatory reports that a swarm of small earthquakes occurred somewhere deep below the iconic crater beginning on April 11 — but it’s too early to tell if that signals an eruption could be on the way.
The volcano is on an uninhabited island in the Rat Islands, about 600 miles southwest of Unalaska.
Scientists at the Alaska Volcano Observatory observed that a new lava dome formed in the summit crater over the weekend, and lava is trickling out. The dome is about 4,200 square meters, a little smaller than 10 NBA basketball courts.
Bogoslof Volcano is back at a low-level “advisory” for the first time since it began erupting more than three months ago. The Alaska Volcano Observatory downgraded Bogoslof’s alert level Wednesday, bringing it just one notch above “normal.”