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- เผยแพร่เมื่อ 22 ก.ย. 2024
- This week on "60 Minutes+" correspondent Seth Doane dives below the Bay of Naples to learn about the sunken city of Baia. The ancient city was once a playground for the Roman Empire's elite. Seth joins "CBSN AM" to discuss.
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All the fish everywhere: Um hello!? Excuse me! Excuse me! Hello? Can I help you? Excuse me! Don't touch that! 6:32
Baia itself is located in the Campi Flegrei, a volcanic caldera west of Naples that sees periodic uplift and subsidence (the "bradyseism" mentioned in the video); some people refer to these as "living, breathing calderas." The same phenomena also happens in the USA at Yellowstone.
Basically put, Vesuvius is not the only volcano in the Naples area. Baia was built inside the caldera, and the same can be said for contemporary cities like Pozzuoli.
Compared with an inland caldera like Yellowstone, with Campi Flegrei being right at sea level, the bradyseism there can appear to have more dramatic effects, as the land rises from the sea, or sinks into the sea (as happened to Baia); not to mention that Campi Flegrei is in a built-up metropolitan area and Yellowstone is not. Campi Flegrei is a smaller volcanic system than Yellowstone, but it erupts much more frequently (Campi Flegrei's last eruption occurred about 480 years ago; it has been about 70,000 years since magma last reached the surface at Yellowstone), and such an eruption could potentially pose a bigger threat to Naples than Vesuvius, depending on the size and location of the eruption within the volcanic system. Note that an eruption at Campi Flegrei could occur anywhere in the area, whereas Vesuvius' eruptions tend to concentrate at a central vent. As a Vesuvius eruption would likely occur at or near the summit, the location will be relatively predictable before any eruption signs even start, but this is not true for Campi Flegrei; we would only have an idea once magma started moving towards the surface. This could complicate evacuation plans, although Auckland (built atop the Auckland Volcanic Field) uses a model that might be valuable; just keep in mind that Auckland sees smaller eruptions and does not have a well-developed magma chamber like Campi Flegrei. Yet even experts can get things like the predicted eruption location wrong; consider the ongoing eruption in Iceland, where earthquake swarms made some people think the eruption location would be different to where the magma ultimately erupted. That was a nonexplosive eruption that occurred in a remote area; a Campi Flegrei eruption would be an explosive eruption occurring in the middle of a city.
Although the thought of a supervolcanic eruption is very attention-grabbing, a caldera-forming eruption would be the least-likely scenario.
Campi Flegrei has erupted twice since Roman times, and in conjunction with the bradyseism, it means that some landscape features that exist today did not exist when Baia was a city (most notably, Monte Nuovo from the most recent eruption). It is a very fascinating area, although unfortunate that people built a major city like the metropolitan area of Naples atop such a geologically-hazardous area. But the area's geography (including the Bay of Naples, valuable for maritime trade and the Roman fleet) and fertile volcanic soils made for an attractive place to build cities, and in the beginning, no one would have had an understanding of the area's volcanic hazards to the extent anyone has today.
Looks like a good practice exercise for a town once called 'Miami" . Lesson? Not yet learned.
Yea no kidding.... Those beautiful mansions located on the Venetian will be the first to sink. Kind of poetic, in a depressing sort of way...
Miami will be a new Baia in few decades
No, not “all of Rome went there on vacation” Only the rich and non slaves went on vacations. Almost like today.
Baiae
This had nothing to do with climate change.
Mosaics from turkey?? It never existed then except maybe by Siberia
My god, don't be a cuck, he's talking about the geographical region called Turkey today. Do you think the random person knows about Asia Minor, Cappadocia, or Anatolia?
“And whoever seeks a religion other than Islam, it will never be accepted of him, and in the Hereafter he will be one of the losers.”
Quran 3:85
😑
the peace loving religion
😑
Good story.. Ever asked yourself why your Muhammad is so hateful? Ohh probably cuz he didn't write the book
Biden 2024