On this day, 37 years ago, on September 20, 1988 (August 10, 1988, the lunar calendar), a volcanic island emerged in the Sea of Azov. Late at night on September 20, 1988, residents of Gorubitskaya Village in the North Caucasus of the Soviet Union on the Sea of Azov were awakened by the rumbling in the sea. I saw smoke billowing in the sea 300 meters offshore, and the heat wave was pressing. A volcanic island shaped like a submarine slowly emerged from the sea. According to the Tass news agency, the volcanic island is nearly 40 meters long and 2.5 meters above the water surface. It is composed of black clay and granite.