New Volcanic Island in the Red Sea Keeps Growing

NASA image acquired January 7, 2012

 

A new island is forming in the Red Sea. About 60 kilometers (40 miles) from the coast of Yemen, an undersea eruption began in mid-December 2011. Local fishermen reported an eruption near the island of Saba, while satellites captured a white plume rising from the sea, and a pulse of sulfor dioxide. The activity was located on the northern edge of the Zubair Islands. On December 23, high-resolution satellite imagery revealed details of the eruption. More recent video from a Yemeni Navy helicopter showed violent explosions, typical of shallow submarine eruptions.

 

This new satellite image, acquired January 7, 2012, suggests that the eruption has risen nearly completely above water. A plume of steam, other volcanic gases, and ash spews from a distinct cone. The land surrounding the vent has grown, and is now about 530 by 710 meters (1,700 by 2,300 feet) across. Once above water, past eruptions in the Zubair Islands were primarily effusive, with relatively runny lava forming thin lava flows. In contrast to the fragmented rock that forms when lava interacts directly with water, lava that solidifies on land is tough, so this new island is likely to stick around.

 

This natural-color image was acquired by the Advanced Land Imager (ALI) aboard the Earth Observing-1 (EO-1) satellite.

 

NASA image by Robert Simmon, using ALI data from the EO-1 Team.

 

Instrument: EO-1 - ALI

 

To download the high res file and see other images from this event go to: earthobservatory.nasa.gov/NaturalHazards/event.php?id=76807

 

Credit: NASA Earth Observatory

 

NASA image use policy.

 

NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.

 

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Taken on January 10, 2012
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