Weirdest Natural Disasters in the Earth's History

Earth's history has seen some truly bizarre natural disasters. Take the Tunguska event in 1908, for example, where a massive explosion flattened 800 square miles of Siberian forest, likely caused by a meteor airburst. Then, there was a "Year Without a Summer" in 1816, caused by the eruption of Mount Tambora, which led to global cooling, crop failures, and food shortages. There were more weird disasters in the history of our planet that could be called weird - let's learn more about them.