Where was the world's most powerful recorded volcanic eruption?

Question

Where is the area seen as one of the most outstanding volcanic regions in the world, with a high density of active volcanoes, a variety of types, and a wide range of related features?

Answer 1

Tambora, Sumbawa Island, Indonesia - 1815 VEI 7. The explosion of Mount Tambora is the largest ever recorded by humans, ranking a 7 (or "super-colossal") on the Volcanic Explosivity Index, the second-highest rating in the index.