This earthquake was the same size as the precursor of the great 1631 eruption. A two week long eruption of Mt Vesuvius volcano began on 18th March 1944 with a lava flow from the summit crater. Eruptions changed to explosive activity on 21st March with eight lava fountains.
Mount Vesuvius, Italy (3,500 deaths in December 1631).
location map for Vesuvius is part of the Campanian volcanic arc, a line of volcanoes that formed over a subduction zone created by the convergence of the African and Eurasian plates.
Even at the the far edge of the mud and ash that came from the Pompeii volcano's explosion, the heat was sufficient to instantly kill everyone, even those inside their homes.