"Transient Creation: Japan's New Island Emerges from Underwater Volcanic Eruption"

An undersea volcano off the coast of Iwo Jima, Japan, erupted three weeks ago, resulting in the formation of a new island. The island, approximately 328 feet in diameter and 66 feet above sea level, was created by volcanic ash and rocks piling up on the shallow seabed. However, experts believe that the island may not last long if volcanic activity subsides, as its crumbly formation is easily eroded by waves. Similar undersea eruptions have occurred in the past, leading to the formation of temporary islands that vanished when volcanic activity ceased. Japan, located on the Pacific "Ring of Fire," has 111 active volcanoes.