The Latest on the eruption of Alaska's Pavlof Volcano (all times local):

10 am.

A scientist says an Alaska volcano continues to erupt but is emitting smaller amounts of volcanic ash at lower elevations.

U.S. Geological Survey geophysicist Dave Schneider of the Alaska Volcano Observatory says intermittent eruptions of Pavlof Volcano occurred Tuesday but new ash stayed under 15,000 feet.

That's in contrast to a near-continuous eruption at the volcano 625 miles southwest of Anchorage that began Sunday and continued until Monday.

An ash cloud from the earlier eruption reached 37,000 feet. Meteorologist Don Moore of the National Weather Service says the ash cloud traveled north to interior Alaska and has crossed into Canada.

He says the plume thinned as it moved north and east.

Volcanic ash can shut down jet engines.

The Alaska Volcano Observatory lowered its aviation warning level but says more significant ash emissions may resume with little warning.