Another survey found pyroclastic sediment produced in around 600 and 630, when Takamarubi lava layers were generated on two separate occasions. They were discovered below some sections of the ...

The vulture came from a layer of pyroclastic deposit near the mountain that dates to the Late Pleistocene. The vulture is estimated to have died about 30,000 years ago. Pyroclastic deposits are ...

YAMAGUCHI—An eruption of Mount Aso in Kumamoto Prefecture 90,000 years ago created a pyroclastic flow that traveled 170 kilometers north to the Sabagawa river here, the longest such distance ...