Английская Википедия:Akahoya eruption

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Шаблон:Short description Шаблон:Infobox eruption The Akahoya eruption or Kikai-Akahoya eruption was the strongest known volcanic eruption of the Kikai Caldera in Kyūshū, Japan. It ejected about Шаблон:Convert of volcanic material, giving it a Volcanic Explosivity Index of 7.

Retrospective dating

Archaeologically it has been dated around 7,300 cal. BP during the earliest stage of the Jōmon period, but it had also been uncorrected radiocarbon dated to as recent as 6,500 BP. The current accepted dating adjustment from multiple other sources is about 7,200 to 7,300 years ago.

Aftermath

This eruption has been linked to the end of the initial Jōmon culture in southern Kyūshū although impact, although marked, was not as great as some commentary had suggested with Nishinozono sub-type pottery tradition, that had started prior maintained throughout and after the eruption sequence in Kyūshū. It took nearly 1000 years to recover. Jōmon who lived further away survived such as on northern Kyūshū, Honshū and Hokkaidō but likely had to revert for a period to maritime food sources mainly.

The fate of the initial Jōmon culture on south Kyūshū does not quite parallel the demise of the Minoan civilization, which may have ended as a consequence of another massive volcanic eruption.

These events give more credence to cultural traditions that maintain stories of established cultures vanishing quickly and completely. However while the demises happened in (Holocene) human history, in two very different parts of the world, the time scales of both were more gradual than some work suggests, allowing alternative suggestions as to all the mechanisms involved. The associated issues have resulted in deeper study into the effects of volcanic activity on both human cultural development and social perception of volcanic risk.