Many ancient volcanic eruptions that destroyed human civilization. It seems that the ancient mountain series has a close relationship between one mountain with another mountain. In Indonesia also has ancient mountains that erupted with a very powerful. There were recorded eruptions of Mount Krakatau and Mount Tambora which also darkened the earth. Some even link Napoleon's defeat when fighting because of the changing climate and the army running out of food. Mount Tambora also buries civilizations around the mountain. There are recorded several kingdoms buried with various civilizations of Mount Krakatoa whose magma is under sea water also causes a very large tsunami.
However, we are grateful to be on an active mountain range due to fertile soil due to rejuvenation of volcanic ash.
thank you @gooddream for reminding the devastating mountain eruption but also bringing blessings.