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 recorded ...

VOLCANIC activities at Mayon Volcano may last for months as it continues to spew molten lava and pyroclastic density currents (PDC) or uson, a government volcanologist said. Ma. Antonia Bornas, chief ...