08 Nov '11, 6am

Underwater volcano churns up jacuzzi-like mineral bath in the Canary Islands; view from our EO-1 satellite.

The submarine volcanic eruption that began in mid-October in the Canary Islands continued in early November 2011. The volcanic island of El Hierro sits on a tectonic hot spot in the Atlantic Ocean off of North Africa and Spain. The Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite acquired this natural-color image of El Hierro and a plume of volcanic material in the surrounding waters on November 2, 2011. The waters south of the island have been bubbling and fizzing with heat, sediment, bits of volcanic rock, and minerals for weeks, with the plume stretching tens of kilometers. The eruption is believed to be venting about 50 to 100 meters below the water surface, and it is warming the waters by as much as 10 degrees Celsius, according to geologist and blogger Erik Klimetti. The temperature of erupting basalt can be as hot as 1100 to 1200 degrees C, he...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=76362

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