What's up with Madagascar? Why are there volcanoes on an island that isn't near any tectonic boundaries? Date: November 28, 2016 Source: Washington University in St. Louis ...

image: Field of volcanoes on the island of Madagascar puzzles geologists. What is the source of the heat that melts the rock? view more . Credit: Rando Trek VTT.

For months, the underwater volcano announced its own birth with mysterious cries: a low seismic humming too faint to feel. It wasn’t until Nov. 11, 2018, that anyone noticed.

Anjouan island is a 163-square-mile large island located in the body of water that separates Madagascar from Africa. It formed much like the Hawaiian Islands, as an erupting volcano grows over ...

It's hanging out underwater near Madagascar. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In 2018, the largest active underwater ...

The Fenambosy chevron, one of four near the tip of Madagascar, is 600 feet high and three miles from the ocean. Scientists are debating whether the chevron might have been formed by a giant tsunami.