I’m not big on disaster movies, but this Pathé newsreel, complete with Finlandia, is quite something; the movie shown after it must have seemed dull. Thanks to Adrian Murdoch for the link.
“Mount Vesuvius has erupted many times. The famous eruption in AD 79 was preceded by numerous others in prehistory, including at least three significantly larger ones, the best known being the Avellino eruption around 1800 BC which engulfed several Bronze Age settlements. Since AD 79, the volcano has also erupted repeatedly, in 172, 203, 222, possibly 303, 379, 472, 512, 536, 685, 787, around 860, around 900, 968, 991, 999, 1006, 1037, 1049, around 1073, 1139, 1150, and there may have been eruptions in 1270, 1347, and 1500. The volcano erupted again in 1631, six times in the 18th century, eight times in the 19th century (notably in 1872), and in 1906, 1929, and 1944. There has been no eruption since 1944, and none of the post-79 eruptions was as large or destructive as the Pompeian one.
“The eruptions vary greatly in severity but are characterized by explosive outbursts of the kind dubbed Plinian after Pliny the Younger, who published a detailed description of the AD 79 eruption, in which his uncle, Pliny the Elder, died. On occasion, eruptions from Vesuvius have been so large that the whole of southern Europe has been blanketed by ash; in 472 and 1631, Vesuvian ash fell on Constantinople, over 1,200 kilometres away. A few times since 1944, landslides in the crater have raised clouds of ash dust, raising false alarms of an eruption.”