Ushishir

Wiki info

These islets are the tops of a partially submerged volcano. The southern island, Yankicha (Russian: Янкича), consists of the summit caldera and has a maximum width of 2. 5 kilometres (1. 6 miles). The caldera has a diameter of 1. 6 kilometres (1. 0 mile), and is breached on the south, forming a sea-water crater bay. The bay has an estimated depth of 30 metres (98 feet), and there is strong evidence of ongoing underwater volcanic activity, as evidenced by frequent bubbles, altered water chemistry and the presence of bacteria mats. Two small lava domes for small islands in the central lagoon, and numerous fumaroles and hot springs are along the southeast caldera shoreline. The island’s highest point Mikasayama (御笠山) is 401 metres (1,316 feet) high, and is on the eastern shore. The northern islet (Ryponkicha Russian: o. Рыпонкча) is the larger of the two, and consists of a portion of the volcano’s flank, with sheer cliffs rising up 131 metres (430 feet) from the sea. Ushishir is still an active volcano with the last known eruption in 1884.

Keywords: ushishir kurilen, us shirt, us shirt größen,


Tree cores of century-old oaks (Quercus crispula) were found in July 2001 on Kunashiri Island. [2]

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