A stream of lava flowed down the side of the Great Sitkin volcano in the Aleutian Islands Thursday morning and was visible from the nearby community of Adak, an official with the Alaska Volcano Observatory said.
"AVO"
Volcanic activity at Semisopochnoi prompts ashfall warning for fishing boats
The volcano is on an uninhabited island in the Rat Islands, about 600 miles southwest of Unalaska.
On this day in 1989, Redoubt eruption triggered seismic shift in Alaska volcano research
When Redoubt erupted in 1989, the Alaska Volcano Observatory was just one year old and relayed information by fax machine and floppy disk. Today AVO uses an array of sensors, receivers and satellites to monitor dozens of Alaska volcanoes, including Redoubt.