Geography of South Korea Seoul sought to raise in talks with Pyongyang. Though Seoul completed a "Peace Dam" on the Pukhan River to counteract the potential threat of Pyongyang's dam project before the 1988 Olympics, the North Korean project apparently still was in its initial stages of construction in 1990. Maritime claims: "territorial sea:" "contiguous zone:" "exclusive economic zone:" "continental shelf:" not specified Elevation extremes: "lowest point:" Sea level 0 m "highest point:" Hallasan 1,950 m Part of the East Asian Monsoon region, South Korea has a temperate climate with four distinct seasons. The movement of air masses from the Asian continent exerts greater
Newberry Volcano magma chamber under the large, cauldron-like caldera at its summit. This caldera has dimensions of and formed about 75,000 years ago. Newberry Volcano first formed about 600,000 years ago, and has since been built up by several thousand eruptions. About 500,000 years ago, Mount Newberry attained an elevation of . Multiple eruptions created the caldera, but the main caldera-forming event occurred around 75,000 years ago from a major explosive eruption. It formed the crater lakes and Paulina Peak, which is the highest point on the volcano, at . As a result of its caldera-forming eruption, Newberry has a horizontal profile,