946 eruption of Paektu Mountain

The 946 eruption of Changbaishan, on the boundaries of China/Korea, was one of the most powerful in recorded history and is classified as a VEI-7 event. The eruption resulted in a brief period of significant climate change in China. Age of eruption has not been well constrained, but a possible age is A.D. 946. The 946 eruption of Changbaishan named ""Millennium eruption"", and erupted about 100–120 km3 tephras. Millennium eruption begin with strong Plinian column, and ended by voluminous pyroclastic flow. Average of 5 cm of Plinian ashfall and coignimbrite ashfall covered Sea of Japan and northern of Japan about 1.5 million km2, and the ash layer named ""Baegdusan-Tomakomai ash""(B-Tm). Millennium eruption probably occurred in winter of A.D. 946.