Last week’s Global Volcanism Program weekly report (for February 16–22, 2011) listed three Kamchatkan volcanoes currently in eruption—Karymsky, Kizimen, and Shiveluch—and two others—Bezymianny and ...

These are not eruptions like we have seen in modern times. The two largest eruptions of the past 2000 years are Tambora in 1815, and Taupo around 200 AD. They ejected around 150 km 3, decent VEI-7’s ...