Figure 3
From: Tracking volcanic explosions using Shannon entropy at Volcán de Colima
(a) SE during June and July 2015. Red lines show the moment of the two pyroclastic flows occurred in July 11th. Red shadow areas are the periods used to evaluate how SE can be used to monitor volcanic explosions. Green area is the confirmed short term forecasting period (5 days) obtained from the decay of the SE. (b) Plot of the STA/LTA ratio during June and July 2015. Period in which values are over 70% of decay are highlighted in red. (c) Zoom of 11 of July showing as the SE reached zero when the pyroclastic flows happened.
