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Donnerstag, Jun 28, 2012
Mt Siple volcano in Antarctica might have become active and produced a steam plume recently detected on satellite imagery. The latest Smithsonian activity report mentions: ...
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Siple VulkanSchildvulkan 3110 m / 10,203 ft
Marie Byrd Land, Western Antarctica, -73.43°S / -126.67°W Aktueller Status: unruhig (2 von 5) Siple Webcams / aktuelle Daten
Letztes Update: 28 Jun 2012 (possible steaming detected on 20 June)
Typische Aktivität: effusiv Ausbrüche des Siple: 2012 (?) Letzte Erdbeben in der Nähe:
Mount Siple was first visited on 22 February 1984 by crew of the cruise II of USCGC Polar Sea. Beschreibung:from Smithsonian / GVP volcano information:The massive 1800 cu km volcano is truncated by a 4-5 km summit caldera and is ringed by tuff cones at sea level. Its lack of dissection in a coastal area more susceptible to erosion than inland Antarctic volcanoes, and the existence of a satellite cone too young to date by the Potassium-Argon method, suggest a possible Holocene age (LeMasurier and Thomson 1990). The location of Mount Siple on published maps is 26 km NE of the actual location. A possible eruption cloud observed on satellite images on September 18 and October 4, 1988 was considered to result from atmospheric effects after low-level aerial observations revealed no evidence of recent eruptions (Smithsonian Scientific Event Alert Network Bulletin). |
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