Is it possible for volcanos to be active deep within the ocean?
The short answer to your first question would be: yes. It is possible for volcanoes to be active deep within the ocean. “Active” or magmatic submarine volcanoes at great ocean depths may not be obvious at the ocean’s surface but can be detected by hydrophones/water discoloration. Pillow lava is often seen near submarine volcanoes. The depth would have a lot to do with the eruption. The massive volcanic eruption you mention was at Krakatoa. This area is full of hot spots, but that particular eruption in 1883 was the loudest explosion in recorded history. If you are interested in further reading, there is a very well-written book called _The Day the World Exploded_ which details the explosion of Krakatoa. I don’t know much about the Bermuda Triangle or that area of the world but magnetic anomalies on the ocean floor is nothing new. Google “sea floor spreading” for more information.
