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2021 : On August 13, smoke from an undersea eruption of the seafloor is observed rising about 17,000 m (56,000 ft) high, in addition to volcanic lightning. Initially, volcanic ash crosses the Bashi Channel and enters the South China Sea. [12] This eruption is considered to be one of the largest in Japan after the Second World War. [13]
Seamount (underwater volcano), shield volcano: Age of rock: 144.6 ± 0.8 Ma [2] ... Tamu Massif is located in the Shatsky Rise about 1,600 km (990 mi) east of Japan ...
Myōjin-shō (明神礁) is a submarine volcano located about 450 kilometers south of Tokyo on the Izu-Ogasawara Ridge in the Izu Islands. Volcanic activity has been detected there since 1869. Since then it has undergone more eruptions, the most powerful of which resulted in the appearance and disappearance of a small island.
An undersea volcano erupted off Japan three weeks ago, providing a rare view of the birth of a tiny new island, but experts say it may not last very long. The unnamed undersea volcano, located ...
A list of active and extinct submarine volcanoes and seamounts located under the world's oceans. There are estimated to be 40,000 to 55,000 seamounts in the global oceans. [ 1 ] Almost all are not well-mapped and many may not have been identified at all.
Submarine volcanoes are underwater vents or fissures in the Earth's surface from which magma can erupt. Many submarine volcanoes are located near areas of tectonic plate formation, known as mid-ocean ridges. The volcanoes at mid-ocean ridges alone are estimated to account for 75% of the magma output on Earth. [1]
Quaternary Volcanoes of Japan - Geological Survey of Japan; Volcano on Google Map - Geological Survey of Japan; The National Catalogue of the Active Volcanoes in Japan - Japan Meteorological Agency; 日本の主な山岳標高 (Elevation of Principal Mountains in Japan) - Geospatial Information Authority of Japan (in Japanese)
Japan Meteorological Agency. 2022: Hunga Tonga-Hunga Ha'apai, Tonga. On Jan. 1, an underwater volcano near Tonga exploded, sending a plume of ash and steam more than 12 miles into the atmosphere ...