activation and partial melting within the magma chamber. A shallow
chamber beneath Kluchevskoy volcano was not yet visible in the latest
images. It should be noted that shortly after this study period
Klyuchevskoy began a protracted eruption sequence that lasted
through the end of 2010 (KVERT, 2001–2010). In addition, Bezymianny
experienced its most explosive recent eruptions at the end of 2009 and
in early 2010 (West, 2013). It is quite likely that the new mid-crustal
anomaly that appeared in 2008 is the magma reservoir which sourced
the eruptions of 2009–2010