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Rodriguez Seamount – A Geologic Rarity

Featured Pic:  Pillow lava, a unique type of basalt rock that forms during underwater volcanic eruptions. Photo courtesy NOAA. By Samuel Georgian, Marine Biogeographer at Marine Conservation Institute   Rodriguez Seamount is a 10–12 million-year-old seamount located approximately 42 miles off the coast of southern California. It towers over a mile above the seafloor, with its tallest…

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5 Reasons Seamounts Matter

Seamounts are underwater mountains that rise from the seabed. Because most of the world’s seafloor is a muddy plain, seamounts are special deep-sea features that support unique creatures. Seamounts can arise along mid-ocean ridges, as isolated landmarks, or as volcanoes in chains and clusters. Off California, several seamounts were ancient islands that only went under…

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