VOLCANIC GEOLOGY

THE VOLCANIC ORIGINS OF YAKUSHIMA

Granite Waterfall

Granite Waterfall

 

Modern day Yakushima was most recently impacted during a huge volcanic eruption on the ocean floor around 6300 years ago.  The Kikai Caldera, located 40km north-west of Yakushima, was the cause of the eruption that created large volumes of debris via pyroclastic flow that covered much of the region, including parts of mainland Japan.  It is estimated to have been around 150 cubic kilometers of volcanic products.

 

Sakurajima Eruption 1914

Sakurajima Eruption 1914

 

Aftermath of the Eruption

Aftermath of the Eruption

 

SAKURAJIMA ERUPTION  FEBRUARY 1914

Sakurajima was until 1914 a volcanic island in the middle of Kagoshima Harbour.  Once the dust settled so to speak, it became a peninsula directly connected to the Kyushu mainland on the eastern side of the bay.

 


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