Some time ago we voiced our concerns on the visibly reduced sunspot cycles that we believe are directly correlated & impact the propensity of volcanic eruptions on this planet.
In the 19th century there was a phase called the Dolton Minimum (1760-1860) which was oberved by the primitive astronomers of the day and was indirectly referenced as the cause of the biggest volcanic eruption of the last 10.000 years, Tambora in 1815.
This eruption caused the now famous Year Without a summer in 1816. We are currently in a reduced sunspot cycle and we are seeing volcanic alerts globally in areas where volcanoes have been dormant for hundreds of years so it has raised alarm bells with vulcanolists everywhere. REMEMBER these are the events that cause climate change.