Jebel Zubair VulkanSchildvulkan 191 m / 627 ftRotes Meer, Yemen, 15.16°N / 42.1°E Ausbrüche des Jebel Zubair: 2011 Dec (?), 1846 (?), 1824 Typische Aktivität: effusiv Letzte Erdbeben in der Nähe Jebel Zubair volcano (Red Sea, Jemen): satellite image shows growth of new islandMittwoch Jan 11, 2012 12:54 | VON: T
New images were released from NASA, showing the rapid growth of a new island in the Zubair archipelago in the Red Sea. 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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Links / Quelle: Zubair Vulkan (Rotes Meer): dramatisches Video zeigt VulkanausbruchMittwoch Jan 04, 2012 20:43 | VON: T
Auf youtube ist mittlerweile ein dramatisches Video des jüngsten Vulkanausbruch im Roten Meer in der Zubair-Inselgruppe westlich vor Jemen aufgetaucht. Das Video wurde von einem Militärhubschrauber aufgenommen und zeigt die neu geborene Insel noch in der stark explosiven Phase, bei der sich Magma im Kontakt mit Meerwasser explosiv mischt und zu riesigen Asche und Dampfwolken führt. Leider ist das Datum des Videos nicht angegeben, es dürfte aber um den 22.-23. Dezember aufgenommen worden sein.
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Mittwoch, Dez 28, 2011
NASA satellite images show that the eruption in the Red Sea in the Zubair archipelago has produced a new island. The island is circular, about 500 m wide and located about 1 km north of Rugged Island. It consists of fresh probably basaltic lava flows and an active vent seems to be in its center. ...
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