1/31/2024 0 Comments Recent volcano eruption in japan![]() A new island, 100 meters in diameter, formed by erupted rock, is seen near the steam, according to Kyodo News. This aerial photo shows steam billowing from the waters off Iwoto Island, Ogasawara town in the Pacific Ocean, southern Tokyo, on Oct. An unnamed undersea volcano, located about 1 kilometer (half a mile) off the southern coast of Iwo Jima, which Japan calls Ioto, started its latest series of eruptions on Oct. In this aerial photo, plume billows from the water off the Ioto island, seen rear, following an eruption in Ogasawara, southern Tokyo, Japan, on Oct. ![]() In this aerial photo, plume billows from the water off the Ioto island, following an eruption in Ogasawara, southern Tokyo, Japan, on Oct. In this aerial photo, plume billows out from the water off the Ioto island, following an eruption in Ogasawara, southern Tokyo, Japan, on Oct. The new island could survive longer if it is made of lava or something more durable than volcanic rocks such as pumice. He said experts are still analyzing the development, including details of the deposits. ![]() Volcanic activity at the site has since subsided, and the newly formed island has somewhat shrunk because its "crumbly" formation is easily washed away by waves, Usui said. Volcanic activity has increased near Iwo Jima and similar undersea eruptions have occurred in recent years, but the formation of a new island is a significant development, Usui said. By early November, it became a new island about 100 meters (328 feet) in diameter and as high as 20 meters (66 feet) above the sea, according to Yuji Usui, an analyst in the Japan Meteorological Agency's volcanic division. Within 10 days, volcanic ash and rocks piled up on the shallow seabed, its tip rising above the sea surface. Several data have been summarized and translated.The unnamed undersea volcano, located about 1 kilometer (half a mile) off the southern coast of Iwo Jima, which Japan calls Ioto, started its latest series of eruptions on Oct. These statistics are based on datas from the Smithsonian Institution's Global Volcanism Program (GVP), and the Significant Volcanic Eruptions Database of the National Geophysical Data Center (NOAA) / World Data Service (NGDC/WDS) doi:10.7289/V5JW8BSH. Such a volcano normally only reaches this intensity every 50 years. The volcano Usu threw tephramasses of at least 1 cubic kilometer over 25 kilometers high. ![]() The highest explosivity index in Japan reached in the review period was VEI 5 in 1663. Here, more than 1,000 cubic kilometers of tephra are thrown to altitudes of more than 25 kilometers. From VEI 8, a volcano is considered a super volcano. For example, a VEI of 1 means that the volcano throws lava and rock masses of 100,000 to 1 million cubic meters up to 1 kilometer high. ![]() The scale ranges from 0-8, with the severity of the eruption increasing tenfold with each value. This takes into account the height and volume of the rocks ejected. The column "VEI" stands for the volcano explosivity index, which represents the strength of the eruption from a geological point of view. Significant volcanic eruptions in Japan in the last 1300 years The following list shows all volcanic eruptions of the last 1,300 years with significant damage. Most of the world's volcanic eruptions, which are also the most severe, occur in this zone. Here the tectonic plate of the Pacific collides with several surrounding continental plates and seismic tremors occur again and again. Japan is located on the Pacific Ring of Fire, which stretches for about 40,000 km around the Pacific Ocean. ![]()
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