Two colossi erupt simultaneously in Alaska: this is how the activity of the Pavlof volcano looks | Video

In Alaska there are two volcanoes erupting at the same time. Both the Pavlof volcano, about 2,517 meters, and the great Sitkin volcano, 1,740 meters, are registering eruptive activity and low-level seismic tremors. View images collected by scientists at the Alaska Volcano Observatory.