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The Eruption. Death of Pompeii and Herculaneum. Phlegraean Fields ( bradyseism ). Strabo Geography V.4.8 ( Vitruvius and Diodorus Siculus ).
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Strabo Geography V.4.8 ( Vitruvius and DiodorusSiculus) • Mount Vesuvius is situated above these places and people live all around on very beautiful farms, except at the summit. This is flat for the main part, but completely unfruitful, like ashes to look at, and it displays porous hollows of rocks blackened on the surface, as if devoured by fire. As a result, one would deduce that this area was previously on fire and held craters of fire, and that it was extinguished when the fuel failed. Perhaps this is also the reason for the fruitfulness of the surrounding area, just as at Catana they say that the part covered by ash carried up by the fire of Etna made the country suited to vine-growing.
Traditional DAte • 19– 23 August --- earth tremors and other signs • Morning 24 Aug. –explosion with ash • But- more than 12 dates given in manuscripts of Pliny’s Letters
August • Deciduous trees sill have leaves at Herculaneum • Villa A at Oplontis-herbs that would have finished flowering by autumn • Broad beans ( don’t stay fresh long after picking)
Atumn? • Heavy clothing on victims • Autumn fruits ( pomegranates) • BUT Maybe clothing for protection from ash Fruits picked earlier but saved.
New Evidence ( House of the Golden Bracelet coin hoard) • Silver denarius of Titus
TRP VIIIiImPXV COS VII PP • Imperator Titus Caesar Vespasian Augustus Pontifex Maximus • With tribunician power for the 9th time 9 • Acclaimed Imperator for the 15th time, consul for the 7th time, father of the country. • Consul= 79 CE/Tribune= July/Imperator= not before Sept.
Pliny the Younger -Eyewitness • Letters -- Pliny the Younger to Tacitus • Raised by his uncle Pliny the Elder . Pliny the Elder– ( The Natural History– 37 Books ). Commander of Roman fleet at Misenum
Timeline (2-- Days from 11:00 am to 8:00 am ) • Day 1-steam, Plinian Phase Day 2- pumice (lapilli) and rock 6 inches per hour
Day 2 --Pelean phase-Surges 1and 2 (nuees ardentes) Herculaneum • Hot ash and gas ( 212- 750degrees F.) 100+miles per hour
Herculaneum 6 surges ( 75 feet),extended coastline by 1300 ft. • Pompeii = last 3/6 surges (2-6 ft.)