American Samoa is a United States territory which comprises the easternmost islands of a volcanic island chain formed by the Samoan hotspot in the South Pacific Ocean. Its small islands are the tops ...

Using an underwater robot launched from the research vessel Nautilus, an underwater volcano in American Samoa was explored. Ocean Exploration Trust Off the coast of American Samoa, an active ...

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Off the coast of American Samoa, an active underwater volcano towers above the seafloor, its upper crater the site of a four-year eruption. Following the formation of a 1,000-foot lava cone between ...