Photo Gallery The Growing Undersea Mountain off El Hierro

In the waters off the Canary Island of El Hierro, 20-meter high jets of water and stones are being flung into the air as the sea boils and releases the stench of sulfur. The undersea volcano, which could soon create the Atlantic's newest island, only needs to grow a short distance more before it breaks the surface.
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A seething maelstrom where the undersea volcanic eruption off El Hierro is causing the surface of the ocean to foam up.

Foto: DPA/ IGN
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Hot rocks: Steaming pumice stones, a product of the underwater eruption, drift in the ocean.

Foto: Presidencia del Gobierno de Canarias
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Infrared analysis has shown that the vortices in the sea are significantly warmer than the surrounding water.

Foto: AFP
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The sea now resembles a bubble bath. Geysers spouting some 20 meters high have been seen in the last few days off the Canary Island of El Hierro.

Foto: AP/ Canary Islands Government
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A sea of ash is drifting on the surface of the water.

Foto: DPA/ Canary Regional Government
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A discolored part of the Atlantic Ocean. Scientists have been warning since the beginning of September that the eruptions could move onto land.

Foto: DPA/ Canary Regional Government
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Pumice and ash: "The monster rises out of the water," read a headline in the Spanish newspaper "La Provincia."

Foto: DPA/ Spanish Civil Guard
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The effects of the underwater eruption shown in a satellite image dated Nov. 2. Dead fish float in the sea of ash, while pockets of gas bubble up.

Foto: NASA
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Each dot on this graphic represents an earthquake which has occurred near El Hierro since the middle of July 2011. The red dots indicate tremors in the last two days (as of Nov. 7, 2011). The green dots signal quakes more than four days old, and blue dots are any quakes that occurred in between. The lower graph shows the depth of the earthquakes -- most occurred near the volcanic island's magma source.

Foto: IGN
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On this map, each dot represents an earthquake since Nov. 5 -- the tremors are moving towards the northern coast.

Foto: Instituto Geografico Nacional
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A satellite image taken on Oct. 23 shows a mass of underwater ash off the coast of El Hierro that is already bigger than the island itself.

Foto: RapidEye
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Pumice floating on the surface of the sea. Geochemist Domingo Gimeno Torrent of the University of Barcelona told the "El Hierro Diaro" newspaper, there is "clear evidence of explosive potential."

Foto: AP/ Canary Island Government
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A graphic image of the seabed off El Hierro. The undersea mountain is now just 70 meters below the surface.

Foto: DPA/ IOE
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These sound wave images show the rugged contours under the water. The red marks the seabed, while the spikes represent fissures from which volcanic gases are escaping.

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A graphic showing the relief of the Earth's surface around the Atlantic.

Foto: Instituto Geográfico Nacional
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A satellite photograph taken on Oct. 13 shows the sea of ash (circled) caused by the first volcanic eruption in the Canary Islands in 40 years.

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El Hierro is the youngest of the Canary Islands, and emerged from the sea just over a million years ago. The pictured El Golfo Valley came into being tens of thousands of years ago when a third of the island sank back into the Atlantic following an earthquake.

Foto: Manuel Meyer/ dpa
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The dating of volcanic rocks on El Hierro has indicated that there have been eruptions on the island for more than a million years.

Foto: JMN/ Cover/Getty Images
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Hundreds of residents in the southern part of El Hierro have had to leave their homes, with many streets closed off.

Foto: Gelmert Finol/ dpa
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A stained area in the sea caused by the underwater eruption.

Foto: REUTERS/ Gobierno de Canarias
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Stinking sulfurous gas is being blown across the water.

Foto: AP/ Canary Islands Government
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The volcano is giving the appearance of hiccupping. So far, its explosive nature has remained mostly underwater.

Foto: AFP/ Spanish Government
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