Adjective
Plinian (not comparable)
Of or pertaining to Pliny the Younger or Pliny the Elder.
Today, it is regarded as one of the most dangerous volcanoes in the world because of the population of 3,000,000 people living nearby and its tendency towards explosive ( Plinian ) eruptions. Source: Internet
More than 1.5 million metric tons of sulfur dioxide were released into the atmosphere. citation On the Volcanic Explosivity Index scale, the eruption was rated a five (a Plinian eruption ). Source: Internet
The eruption alternated between Plinian and Peléan six times. Source: Internet