On average, about 540 people a year are the victims of volcanic eruptions. Between 1500 and 2017, more than 278,000 people . These are the data from a study conducted by researchers at the University of Bristol
Volcanoes around the world
Published in the Journal of Applied Volcanology the study was based on existing information and databases related to volcanic deaths.
Near volcanoes (within 5 kilometers) volcanic bombs dominate the death registry
The causes of deaths : pyroclastic density currents, rapid hot rock avalanches, ash and gas are the dominant cause between 5 and 15 km away. Volcanic mud flows and ash rains are the main cause at greater distances.