Eruption of Maouna Kawana

Geological / environmental event

Maouna Kawana in Kamaraha caused the largest volcanic eruption in history, dramatically reshaping the islands and covering a full ¼ of the world in volcanic night. The summers in the aftermath of the eruption were some of the coldest on record. Ash from the explosion buried a 20-square-mile (50-square-km) area to the mountain's west, which remains blanketed to this day. The cataclysm damaged the nearby settlements, which only fully recovered more than a century later.

The eruption of Maouna Kawana permanently altered the ocean currents on Orrdia’s coast, causing "extreme" weather to become commonplace. The old Orrdia is washed away in floods and cyclones. The people of Orrdia move their cities and infrastructure underground.   At the time of the eruption, Orrdia was under the Sihnolae's rule. The occupying nation voluntarily withdrew from Orrdia's shores after Maouna Kawana altered the weather and set its sights on the east.