This weekend saw a new eruption from Kambalny in southern Kamchatka. Now, the Kamchatka Peninsula is a very volcanically active area, with multiple eruptions going on simultaneously much of the time. There are certain volcanoes that are in almost-constant unrest, like Shiveluch, Kliuchevskoi, and Karymsky. However, Kambalny is not one of the usual suspects for activity. This changed when a dark grey ash plume was spotted by Earth-observing satellites on March 25.