The birth of a new underwater volcano occurred when a huge seismic event, that started in May of 2018, was felt across the entire globe.
The event produced a new feature, located off the EASTERN coast of the island of Mayotte, which rose 820 meters (2690 feet) from the seafloor. This new feature, thought to be a part of a tectonic structure between the East African and Madagascar rifts, provided a window into deep Earth processes.
According to researchers, this was the largest active submarine eruption documented as of the moment.
Michelle Starr further discusses this research over at sciencealert.com
All images: Feuillet et al., Nature Geoscience, 2021
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