A strange-shaped, 3,300-foot-tall underwater volcano has been discovered off the Northern California coast.
Saildrone / NOAAThe sea mountain, or"seamount," appears more like a smooth-sided circular tower, with near-vertical sides, than a craggy mountain. It was found in February by an ocean mapping autonomous sailboat as part of a multi-agency survey led by the National Oceanic and Atmospheric Administration.
Elmore thinks this unique shape may be because the volcanic activity that formed it was"super hot, and happened all at once." Alternatively, the structure may have lost a more gradually sloped base due to a build up of sediment known as"marine snow," or as Elmore puts it:"Millennia of fish poop." The 1,200-foot-deep crater at the summit of the new underwater volcano sits about 2 miles below the ocean's surface, and was found through the use of a vessel operated by Bay Area ocean research company Saildrone, in partnership with NOAA and other agencies.The orange-sailed uncrewed sailboat Surveyor SD 1200 surfs the ocean using a multi-beam sonar on its hull to map the contours of the depths below. The vessel is controlled remotely by pilots at the company's Alameda base.
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