The researchers noted that simultaneous volcanic eruptions have been going on for more than a week, but now
“There are many volcanoes in Alaska, and we usually seean average of one eruption per year, - Matthew Lowen, a geologist-researcher at the Alaska Volcanic Observatory, told NBC News. "Three eruptions at the same time is not so common, but it happens."
Pavlova Volcano, Bolshoi Sitkin Volcano and Semisopochny Volcano remain under orange threat levels, which means that eruptions continue and minor ash emissions have been detected.

Mount Etna has grown by 30 meters due to 50 volcanic eruptions in six months
Volcanic islands making up socalled the Aleutian Arc, are part of a horseshoe-shaped zone that can be traced along the edge of the Pacific Ocean, where many earthquakes and volcanic eruptions occur. Known as the Pacific Ring of Fire, this region is seismically and volcanically active as it sits on the border of several tectonic plates that constantly collide with each other.
Although the Pavlova volcano, Bolshoi Sitkin andSemisopochny are located in remote parts of the Aleutian Islands, they can create ash clouds that are dangerous for air travel. Lowen noted that it has been at least seven years since three volcanoes erupted simultaneously in Alaska.
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