Photos: New island emerges after undersea volcano erupts off Japan, but experts say it may not last long

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Photos: New island emerges after undersea volcano erupts off Japan, but experts say it may not last long

Undersea volcanos and seismic activities have formed new islands in the past

Published: November 10, 2023 09:00 Compiled by Nathaniel Lacsina, Senior Web Editor and with inputs from AP

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Japan_Island_30057--5bb9f — 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. Image Credit: AP

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Japan_New_Island_07395--52498 — 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. 21. Image Credit: AP

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Japan_Island_37014--5f297 — Within 10 days, volcanic ash and rocks piled up on the shallow seabed, its tip rising above the sea surface. By early November, it became a new island about 100 meters in diameter and as high as 20 meters above the sea, according to Yuji Usui, an analyst in the Japan Meteorological Agency's volcanic division. Image Credit: AP

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Japan_New_Island_77187--425f7 — 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. Image Credit: AP

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Japan_Island_44772--ad5d3 — 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. Image Credit: AP

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Japan_New_Island_04762--a118f — He said experts are still analyzing the development, including details of the deposits. The new island could survive longer if it is made of lava or something more durable than volcanic rocks such as pumice. “We just have to see the development,” he said. “But the island may not last very long.” Image Credit: AP

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Japan_New_Island_45029--707ed — Undersea volcanos and seismic activities have formed new islands in the past. In 2015, a new island was formed as a result of a month-long eruption of a submarine volcano off the coast of Tonga. Image Credit: AP

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Japan_New_Island_06634--969d7 — Of about 1,500 active volcanos in the world, 111 are in Japan, which sits on the so-called Pacific “ring of fire,” according to the Japan Meteorological Agency. Image Credit: AP

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Photos: New island emerges after undersea volcano erupts off Japan, but experts say it may not last long

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Photos: New island emerges after undersea volcano erupts off Japan, but experts say it may not last long

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