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Kikai Caldera

All articles tagged with #kikai caldera

science1 month ago•4 min saved

Fresh magma recharges Japan’s Kikai caldera, offering clues on how giant supervolcanoes rebuild

Underwater seismic surveys show a large, magma-rich reservoir beneath Japan’s Kikai caldera, with new magma entering the system over thousands of years and a lava dome forming about 3,900 years ago. This supports a model in which giant calderas gradually rebuild magma after major eruptions and could apply to other systems like Yellowstone and Toba, aiding efforts to monitor and anticipate future giant eruptions.

via ScienceDaily|

#giant-calderas #kikai-caldera #magma

earth-science5 months ago•5 min saved

Japan's Submarine Caldera Begins Recharging With New Magma

Using underwater seismic imaging, researchers mapped a large magma reservoir beneath Japan's Kikai caldera and confirmed the current magma is newly injected rather than leftover from the last eruption, with a lava dome forming over thousands of years. The findings suggest a recharging cycle for giant calderas and could improve monitoring of future eruptions at calderas like Yellowstone and Toba.

via sciencedaily.com|

#caldera-systems #earth-science #eruption-forecasting

science5 months ago•7 min saved

New Magma Injections Refill Japan’s Kikai Caldera After 7,300 Years

A Kobe University-led study using underwater seismic surveys mapped a large magma reservoir beneath Japan’s Kikai Caldera and found that fresh magma is being injected to refill the system after its 7,300-year-old eruption, supporting a general refill model for giant calderas like Yellowstone and Toba and potentially improving monitoring of future giant eruptions.

via SciTechDaily|

#kikai-caldera #magma-re-injection #magma-reservoir

science2 years ago•3 min saved

"Unprecedented Survey Reveals Largest Volcano Eruption in 11,700 Years"

A recent survey of volcanic deposits off the coast of Japan has revealed that a volcanic eruption 7,300 years ago formed a large underwater caldera, making it the largest volcanic eruption in the past 11,700 years. The Kobe University research team used seismic imaging and sediment sampling to study the event, estimating the erupted volume to be between 133 and 183 cubic kilometers. The findings provide valuable insights into the dynamics of volcanic mega events and their impact on global climate and human history.

via Forbes|

#geological-research #japan #kikai-caldera

science-and-environment2 years ago•2 min saved

"Record-Breaking Ancient Volcanic Eruption Near Japan"

Scientists have confirmed the largest volcanic eruption in the Holocene, occurring around 7,300 years ago at the Kikai Caldera near Japan's Kyūshū island. By analyzing sediment samples and using seismic imaging, researchers estimated that the Kikai-Akahoya eruption covered an area of 4,500 square kilometers, making it the largest volcanic eruption of the Holocene. Understanding past super eruptions is crucial for predicting and preparing for future volcanic events, as they have significant global and historical impacts.

via ScienceAlert|

#holocene #japan #kikai-caldera