A volcano in Alaska's Aleutian Islands has erupted again, sending a cloud of ash and ice particles 30,000 feet in the air.

The Alaska Volcano Observatory says the cloud was seen by satellite shortly after Bogoslof (BOH-gohs-lawf) Volcano erupted Thursday.



Volcanic ash above 20,000 feet is a threat to airliners flying between Asia and North America. The Aviation Color Code was lowered from red to orange late Thursday evening after the ash cloud dissipated.