Figure 5
From: A statistical analysis of the global historical volcanic fatalities record
Time series of number of fatal incidents, volcanic events, and fatal incidents as a percentage of all volcanic events. Red line shows 25-year moving average of total number (both fatal and non-fatal) of volcanic events; purple line shows 25-year moving average of total number of fatal incidents; blue line shows 25-year moving average of the percentage of all events causing fatalities. Counts are calculated in five-year cohorts.