Pavlof Volcano is situated about 600 miles southwest of Anchorage. It erupted at 4:18 p.m. local time. According to the USGS, tremors were also felt on the ground due to the eruption. The USGS raised the volcano alert level to "Warning" and the aviation warning to "Red."
The USGS added the diameter of the volcano is about 4.4 miles and it has had 40 known eruptions and "is one of the most consistently active volcanoes in the Aleutian arc."
It last erupted in 2013 and at that time ash plumes were sent rising 27,000 feet. Other eruptions have generated ash plumes as high as 49,000 feet. The community closest to the volcano is Cold Bay.