1 Research Institute of Earthquake and Volcano Geology, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan 2 Department of Geology and ...

Bezymianny, a stratovolcano in Russia’s Far East, ejected a towering plume that streaked the snow with dark ash. A stratovolcano, also known as a composite volcano, is a tall, conical volcano built up ...