Figure 5
From: Thermal remote sensing reveals communication between volcanoes of the Klyuchevskoy Volcanic Group

Stacked TADR time-series relative to the onset of the Klyuchevskoy eruptions, before (left column) and after (right column) the Tolbachik eruption. Upper panels: TADRs of the Bezymianny volcano. Lower panels: TADRs of the Klyuchevskoy volcano. The simultaneous activation of Bezymianny at the time of the eruption onset of Klyuchevskoy is obvious before the Tolbachik eruption (a1) but absent afterwards (a2). Similarly, at Klyuchevskoy, the precursory activity is evident for the eruptions that occurred before the Tolbachik eruptions (b1), but not afterward (b2). The time window of ± 90 days is chosen for visualization purposes, because most of the Klyuchevskoy eruptions show their maximum within this time after the eruption onset. Time series generated using MATLAB software (www.mathworks.com).