In the year 946 CE, the Changbaishan-Tianchi volcano, on the border between China and North Korea, erupted ferociously. The eruption released dozens of cubic kilometers of magma and triggered a massive flood from the lake atop the volcano’s summit, known today as Heaven Lake. Evidence of the flood can still be seen in the form of boulders and smaller rocks that washed down from the upper reaches of the volcano. In the year 946 CE, the Changbaishan-Tianchi volcano, on the border between China and North Korea, erupted ferociously. The eruption released dozens of cubic kilometers of magma and triggered a massive flood from the lake atop the volcano’s summit, known today as Heaven Lake. Evidence of the flood can still be seen in the form of boulders and smaller rocks that washed down from the upper reaches of the volcano. Earth Sciences Environment Phys.org – latest science and technology news stories