ROV discovers underwater mud volcano

Scientists with with Advancing Knowledge of Methane in the Arctic (AKMA) discovered an underwater mud volcano in Norwegian waters using ROV Aurora from research vessel Kronprins Haakon:

Found at a depth of ~400m (1300ft), this underwater mud volcano erupted from within another older crater, that supports a vibrant ecosystem including anemones, sponges, corals, sea stars, and tube worms. 

Full article at: MentalFloss 11may23