http://news.blogs.cnn.com/2011/12/29/eruption-creates-new-island-in-red-sea/
Eruption creates new island in Red Sea
The island – essentially lava that cooled after breaking through the
water's surface – began forming this month between Yemen and Eritrea
among the Zubair archipelago, a group of small islands that come from
a submarine shield volcano, according to NASA and the Smithsonian
Institution’s Global Volcanism Program.
NASA’s Earth-Observing-1 satellite captured an image (above) showing
the new mass with a plume – perhaps volcanic ash and water vapor –
rising from it on December 23, NASA’s Earth Observatory website says.
The island appeared to be less than one-third of a mile in diameter,
according to the Global Volcanism Program.
The image came four days after local news reports said fishermen saw
an eruption in the sea, with lava rising up to 90 feet in the air,
according to NASA.
The shield volcano from which the Zubair islands stem (the largest of
which is 5 kilometers long) last erupted in the 19th century,
according to the Global Volcanism Program.
Wordwide, new islands emerge from volcanic eruptions about once every
few years, and not all of them survive beyond three years, because
waves can break them apart, GVP volcanologist Rick Wunderman said
Thursday. It's not clear whether the new Red Sea island will last, but
the material that emerges from the Red Sea typically is more
structurally sound than other areas, Wunderman said.
"That's usually the (material) that you see in the Red Sea – not so
rich in gasses, more able to withstand waves and storms," he said.
People looking for an island getaway might want to keep searching,
though. "It'd be hard to live there," Wunderman said. "(Fresh) water,
safe harbor, all that kind of stuff would be really quite the
challenge."
Wunderman said the central to southern Red Sea has seen plenty of
volcanic activity recently, with as many as 10 eruptions in the past
five years.
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Received on Fri Dec 30 2011 - 13:19:50 EST