There was a rare event that occurred in Alaska some time ago, where three volcanoes erupted simultaneously.

Three volcanoes on Alaska's Aleutian island have erupted simultaneously, but for now pose no threat to local communities. Seeing this, research geologist at the Alaska Volcano Observatory, Matthew Loewen commented.

"Alaska has a lot of volcanoes, and we typically see maybe one eruption on average every year," Matthew Loewen, a research geologist at the Alaska Volcano Observatory, told NBC News.

"Having three eruptions at once is less common, but it does happen." he continued.

It's been at least seven years since three volcanoes erupted in Alaska at once. The three volcanoes are Pavlof, Great Sitkin and Semisopochnoi, all of which fall under the "orange" warning code, meaning that the volcano is a potential eruption or an ongoing eruption with small ash emissions.

The other two are under the "yellow" warning code, meaning they are showing signs of rioting. The Pavlof volcano, which is about 966 km from Anchorage, exhibits low levels of unrest and small ash emissions, while the Great Sitkin volcano, has continuous lava flows from its summit crater.

The third volcano, Semisopochnoi, is on an uninhabited island in West Aleutian. This volcano has experienced several explosions. All three volcanoes have been reported to have been erupting for more than a week.

The volcano is part of the so-called Aleutian Arc, a chain of volcanoes that lies at the boundary between two tectonic plates. These plates are large pieces of Earth's crust that move and collide with each other, triggering many volcanic eruptions and earthquakes.