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New Pacific island rises after underwater volcanic blast

The tiny island got here into existence 11 hours after a volcanic eruption and grew to 24,000-square metres in dimension.

A brand new island has emerged within the southwest Pacific Ocean after a Home Reef underwater volcano erupted  oozed lava and ejected ash and steam.

The island got here into existence 11 hours after the eruption on September 10, which discoloured the encompassing water, the US-based area company NASA stated in a press release.

NASA was capable of {photograph} the brand new land mass with satellites. The volcano is located within the Home Reef seamount near the central Tonga island.

“The Operational Land Imager-2 (OLI-2) on Landsat 9 captured this natural-color view of the young island on September 14, 2022, as plumes of discolored water circulated nearby,” the assertion stated.

“Previous research suggests that these plumes of superheated, acidic seawater contain particulate matter, volcanic rock fragments, and sulfur.”

On September 14, Tonga Geological Services estimated the scale of the island to be 4,000 sq. metres (43,055 sq. ft), with an elevation of 10.1 metres (33 ft) above sea stage. However, by September 20 the company stated the island had grown considerably to 24,000 sq. metres (258,333 sq. ft).

The new island within the southwest Pacific Ocean [NASA Earth Observatory]

NASA stated whereas islands created from underwater volcanos don’t final lengthy, some can go on to exist for years.

“The volcano poses low risks to the aviation community and the residents of Vava‘u and Ha‘apai… All mariners are, however, advised to sail beyond 4 kilometers (2.49 miles) away from Home Reef until further notice,” TGS famous.

Seismic exercise is a standard prevalence round Tonga, an archipelago nation with 171 islands and a inhabitants of 100,000.

Previously, Home Reef volcanos erupted in 1852, 1857, 1984 and 2006 – with the final two eruptions producing islands 50 to 70 metres (164-229 ft) excessive, NASA stated.

The Home Reef, a seafloor ridge from Tonga to New Zealand, has the very best focus of underwater volcanos on the earth, in response to the area company.


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