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The supervolcano that once destroyed Japan's civilization is refilling, scientis | The Jerusalem Post

Jpost · · 409 words · By JERUSALEM POST STAFF
open_in_new Read the original article: https://www.jpost.com/science/article-892365

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14 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

help Insufficient Evidence 7
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“A new geophysical survey has found that the vast magma chamber beneath Japan’s Kikai Caldera is refilling.”
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wikipedia NEUTRAL — The Akahoya eruption or Kikai-Akahoya eruption was the strongest known volcanic eruption of the Kikai Caldera in Kyūshū, Japan occurring c. 5250 BCE. It ejected 332–457 km3 (80–110 cu mi) of volcanic …
https://en.wikipedia.org/wiki/Akahoya_eruption
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wikipedia NEUTRAL — Japan is an archipelagic country comprising a stratovolcanic archipelago over 3,000 km (1,900 mi) along the Pacific coast of East Asia. It consists of 14,125 islands. The five main islands are Hokkaid…
https://en.wikipedia.org/wiki/Geography_of_Japan
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wikipedia NEUTRAL — Kikai Caldera (鬼界カルデラ, Kikai karudera) (alternatively Kikaiga-shima, Kikai Caldera Complex) is a massive, mostly submerged caldera up to 19 kilometres (12 mi) in diameter in the Ōsumi Islands of Kagos…
https://en.wikipedia.org/wiki/Kikai_Caldera
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“Researchers say the long-quiet system is accumulating fresh melt and could become more active in the future.”
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wikipedia NEUTRAL — The Akahoya eruption or Kikai-Akahoya eruption was the strongest known volcanic eruption of the Kikai Caldera in Kyūshū, Japan occurring c. 5250 BCE. It ejected 332–457 km3 (80–110 cu mi) of volcanic …
https://en.wikipedia.org/wiki/Akahoya_eruption
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wikipedia NEUTRAL — Kikai is a Japanese name and may refer to:
https://en.wikipedia.org/wiki/Kikai
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wikipedia NEUTRAL — Kikai Caldera (鬼界カルデラ, Kikai karudera) (alternatively Kikaiga-shima, Kikai Caldera Complex) is a massive, mostly submerged caldera up to 19 kilometres (12 mi) in diameter in the Ōsumi Islands of Kagos…
https://en.wikipedia.org/wiki/Kikai_Caldera
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“Scientists from Kobe University and the Japan Agency for Marine-Earth Science and Technology conducted ship-based campaigns.”
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wikipedia NEUTRAL — On 11 March 2011, at 14:46:24 JST (05:46:24 UTC), a Mw 9.0–9.1 undersea megathrust earthquake occurred in the Pacific Ocean, 72 km (45 mi) east of the Oshika Peninsula of the Tōhoku region of Japan. I…
https://en.wikipedia.org/wiki/2011_Tōhoku_earthquake_and_tsu…
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wikipedia NEUTRAL — Japan has a highly developed mixed economy, often referred to as an East Asian model. According to the IMF forecast for 2025, it will be the fifth-largest economy in the world by nominal GDP and the f…
https://en.wikipedia.org/wiki/Economy_of_Japan
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wikipedia NEUTRAL — Riken (Japanese: 理研; English: ; stylized in all caps as RIKEN) is a national scientific research institute in Japan. Founded in 1917, it now has about 3,000 scientists on seven campuses across Japan, …
https://en.wikipedia.org/wiki/Riken
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“They deployed ocean-bottom seismometers and used an air-gun system to probe the structure beneath the seafloor.”
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“The geologists identified a large reservoir beneath a lava dome in the caldera.”
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“The melt differs chemically from material linked to the caldera’s prehistoric colossal outburst indicating replenishment by new injections rather than remnants from the ancient eruption”
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“The Kikai volcano is known for the Akahoya eruption dated to roughly 7,300 years ago”
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“In the eruption 160 cubic kilometers of material erupted dwarfing modern events.”
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“ash fell over much of Japan and parts of the Korean Peninsula.”
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“Scorching pyroclastic flows obliterated life within a radius of up to 150 kilometers.”
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“The eruption’s scale was about 11 times greater than Alaska’s 1912 Novarupta and 32 times greater than the 1991 Pinatubo eruption in the Philippines.”
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“The volcano has been largely quiescent since that cataclysm, with only modest activity.”
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“Prior investigations indicated a lava dome has been forming within the caldera for roughly the past 3,900 years.”
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“The geochemical profile of the current melt suggests newly supplied magma rather than residual material.”
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info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.