The Alaska Volcano Observatory has lowered the alert level for a volcano in the remote Aleutian Islands.

Scientists on Friday said in a release that the level of unrest has subsided at Kanaga Volcano, prompting the alert reduction.

The level was raised Feb. 18 after possible explosive activity and a minor ash cloud. The observatory says there was a slight increase in seismic activity a week later, but no confirmed ash emission.

Kanaga Volcano is about 1,215 miles southwest of Anchorage in the western Aleutians.