Hatepe

In light of this nonsense, why not.

Over the past couple decades I've understood the latter Lake Taupō eruption called "Hatepe" to be AD 180. (Like Iceland, this isn't a one-and-done.) I just looked back in on Hatepe today and now they're like, no; AD 230ish. And its date now sports an error-bar.

For New Zealand this isn't just prehistoric, it's prehuman. Only moa saw this thing (briefly). The nearest human society was Polynesian yes, but way north in Tonga whose inhabitants were not yet Maori. Also this precedes the eastbound migrations lately fictionalised in Moana. Prevailing winds would keep the Australians from knowing anything about this (as a landbound quake - no tsunami).

The AD 180 date - I find - wasn't dendrochronologic. That date (perhaps always suspiciously round) came from Herodian and Fan Ye; neither of them Tongan, nor anywhere subequatorial. So maybe some other event caused the climate they noted. Rather: claimed.

The late 220s-230s would overlap Severus Alexander, I think. Could we assume some other climate disruptions then?

CONFIRMED 10/9/23: Antarctica.