USS Sterlet (SS-392) to the Navy on 31 January 1969 when she was sunk as a target by the nuclear-powered submarine USS . "Sterlet" was awarded six battle stars for World War II service. USS Sterlet (SS-392) USS "Sterlet" (SS-392), a "Balao"-class submarine, was the only ship of the United States Navy to be named for the sterlet, a small sturgeon found in the Caspian Sea and its rivers, whose meat is considered delicious and whose eggs are one of the world's great delicacies, caviar. Her keel was laid down on 14 July 1943 at the Portsmouth Navy Yard. She was launched on
Types of volcanic eruptions propels it forward. Phreatomagmatic eruptions are another type of volcanic eruption, driven by the compression of gas within magma, the direct opposite of the process powering magmatic activity. The third eruptive type is the phreatic eruption, which is driven by the superheating of steam via contact with magma; these eruptive types often exhibit no magmatic release, instead causing the granulation of existing rock. Within these wide-defining eruptive types are several subtypes. The weakest are Hawaiian and submarine, then Strombolian, followed by Vulcanian and Surtseyan. The stronger eruptive types are Pelean eruptions, followed by Plinian eruptions; the strongest eruptions are called