Shiveluch, Russia
Compare this NASA Earth Observatory image (above) of Shiveluch with the previous image of Kizimen and you can clearly see how much more complex the history of Shiveluch might be. On the periphery are long lava flows that are likely quite old and part of the ancestral Shiveluch. In the modern edifice, a caldera opens to the south that represents a collapse or highly explosive eruption. Within that caldera sits the modern dome, slowly filling in the caldera with new lava (much like the domes at Mount St. Helens in Washington) - and these domes collapse to produce pyroclastic flows and avalanche scarps as well.
Image: Shiveluch in Kamchatka seen on February 2, 2012 / NASA Earth Observatory
