The Aleutian volcanoes belong to the chain of Aleutian islands from Alaska, and they are now part of an unusual natural event. The volcanoes are erupting at the same time, with three volcanoes erupting simultaneously, while there are other two who continue to rumble.
Seven years have passed since the last time three volcanoes from the Aleutian Islands erupted at the same time. The good news is that this event did not cause damage so far, and people do not appear to be in danger. Nevertheless, as volcanic activity has reached high levels, it is recommended to remain careful and keep an eye on how things develop.
The Alaska Volcano Observatory emitted an orange alert last Sunday for the Semisopochnoi volcano, Mount Pavlof and the Great Sitkin volcano. This code is no reason for serious worry, and minimal eruptions are expected. So far, Semisopochnoi went through a series of explosions and tremors, while the Great Sitkin has a lava flow. There were also very small amounts of ash at Semisopochnoi and Mount Pavlof, while ash has not been detected at the Great Sitkin.
Beyond the volcanoes listed in the orange alert, the observatory also included two others for a yellow alert. There are also some activity signs for Mount Cleveland with heat raising, as well as minor earthquakes underneath Atka.
Scientists are not entirely sure what caused this increased volcanic activity, but it is not without precedent in history. Back in 1996, 25 years ago, there was seismic activity across 540 miles in the chain of volcanoes. Just as it is now, the reason was unknown back then as well. One theory is that some of the Aleutian Arc volcanoes belong in fact to a much bigger supervolcano.
Experts continue to monitor seismic activity.