Jebel Zubair volcano (Red Sea, Jemen): satellite image shows growth of new island
Wed, 11 Jan 2012, 11:54 | BY: T
The new island in the Red Sea on 7 Jan 2012 (NASA Earth Observatory)
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 be permanent.
Compare this to the satellite picture of the same area from 23 December to see the growth of the island (below).
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Zubair volcano (Jemen, Red Sea): New dramatic video shows volcanic eruption
Wed, 4 Jan 2012, 19:43 | BY: TP
Surtseyan eruption at the newly formed island in the Red Sea
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- Video of the eruption (youtube)
New island born in the Red Sea at the Zubair archipelago (Jemen)
Wed, 28 Dec 2011, 20:19 | BY: T
The new island in the Red Sea seen on 23 Dec 2011 (NASA Earth Observatory)
The same area with no island before
A large steam plume, generated by evaporating sea water at the entry of lava flows into the sea is seen on the satellite image, drifting north.
The island has apparently passed through an explosive Surtseyan phase very quickly, probably because the erupting basalt lava was poor in gas and because the output rate was high, so that the vent could be sealed from water access in short time.
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- Volcanic Activity in the Red Sea (NASA Earth Observatory)
Previous news
Wed, 21 Dec 2011, 08:15
Volcanic Eruption in the Red Sea (Yemen) reported
(update 21 Dec:) ... Read all
Wed, 21 Dec 2011, 06:00
Zubair Group volcano (Yemen) - Smithsonian / USGS Weekly Volcanic Activity Report for 21 December-27 December 2011 (New Activity / Unrest)
An eruption from the northern part of the Zubair Group continued during 21-27 December. MODIS imagery from NASA's satellites on 22 December showed a plume, possibly containing ash, rising from what was thought to be a submarine eruption. Imagery acquired on 23 December from the Advanced Land Imager (ALI) on NASA's EO-1 satellite showed a new island at the location with a plume rising from it, roughly 500 m N of Rugged Island and more than 500 m in diameter. ... Read all
Wed, 14 Dec 2011, 06:00
Zubair Group volcano (Yemen) - Smithsonian / USGS Weekly Volcanic Activity Report for 14 December-20 December 2011 (New Activity / Unrest)
According to local news, fishermen from the port city of Salif on the western Red Sea coast of Yemen reported an off shore eruption from the island of Jebel Zubair, about 60 km SW, with lava fountains rising 20-30 m above the summit on 19 December. On 19 December a SO2 cloud was detected in an OMI satellite image. MODIS imagery from 20 December shows a plume rising from a submarine eruption about 1.5 km SW of Haycock and N of Rugged (near the N end of the Az-Zubair island group), and about 12 km NE of Jebel Zubair island. ... Read all