ANCHORAGE, Alaska – The Alaska Volcano Observatory says lava flowed into the crater at the top of an Aleutian Islands volcano.
The round lava flow Monday was spotted on Mount Cleveland. The current is measured about 260 feet (80 meters) in diameter.
The U. S. Geological Survey says the lava flowing over the mountain active vent increases the possibility of a vent-clearing explosion.
The centre raised the aviation warning code to “look”.
The USGS says the Cleveland Volcano explosions typically produce relatively small volcanic ash clouds that disappear within a few hours, but significant ash emissions have occurred.
The last detected explosive activity has occurred, 4.
Cleveland Volcano is 940 miles (1,512 kilometers southwest of Anchorage.
Satellite monitoring also discovered a steam emissions that may be related to lava in the crater.