Bezymianny, Russia
Some of the volcanoes of Kamchatka are so close together they are practically built on top of each other. Bezymianny sits on the side of the larger volcano, Kamen*, which itself is on the side of Kliuchevskoi (also known as Klyuchevskaya or Kliuchevskaya) - similar to Three Sisters in Oregon. However, Bezymianny is its own magmatic system in its own right. Compared to its Kamchatkan brethren, Bezymianny has been quiet over the last year, but a new seismic swarm and an increasing thermal anomaly seen at the summit suggest that new eruptions from the volcano might be starting soon.
Image: Bezymianny in Kamchatka seen on February 19, 2012 (*Kamen is labeled as Kliuchevskoi in this image - Kliuchevskoi is just to the north of Kamen. Special thanks to Eruptions reader Balazs for catching that) / NASA
