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It has been estimated that at least 21 cubic Km (appr. 11 cubic mile) was ejected from the eruption of Krakatoa and that at least 1 cubic mile of the finer material was blown to a height of about 17 miles (27 Km). The volcanic dust blown into the upper atmosphere was carried several times around the earth by air currents. This volcanic dust veil not only created the spectacular atmospheric effects described previously but acted also as a solar radiation filter, reducing the amount of sunlight reaching the surface of the earth. In the year following the eruption, global temperatures were lowered by as much as 1.2 degree Centigrade on the average. Weather patterns continued to be chaotic for years and there were major climatological changes which affected the entire globe. Temperatures did not return to normal until five years later, in 1888.
Talang has had at least four major eruptions, all in the 19th century,
and three smaller eruptions in 1981, 2001, and 2003.
Indonesia has more than 130 active volcanoes and endures daily seismic jolts attributed to the Pacific 'ring of fire'
which is why i'll now go to Pistol Pete->Toga-SuperVolcano in Sumatra...(thread109035/pg1)
lots of news & reporters are un & under-appreciated, keep plugging away
Originally posted by Jubilee
Is this another sign of the instability of our fragile earth?
AIR BATUMBO, Indonesia (AP) -- Scientists have warned hikers and visitors to stay away from two more Indonesian volcanoes, a day after another volcano spewed ash on disaster-stricken Sumatra island and forced the evacuation of some 25,000 people.
Sensors on the slopes of the two mountains -- Anak Krakatoa on the southern tip of Sumatra and Tangkuban Prahu in Java -- picked up an increase in volcanic activity and a buildup of gases, government volcanologist Syamsul Rizal said on Wednesday.
"Volcanoes will be affected by stress on the earth and changes in stress may trigger eruptions earlier than we may have expected them," Gibson said, adding that he expected there to be many small and large aftershocks from the earthquake.
Scientists on Wednesday raised the alert level for Anak Krakatoa and Tangkuban Prahu -- which regularly spew gas and rumble -- from "normal" to "warning," the middle of three alert levels. This means the volcanoes are declared off-limits to hikers, but authorities are not ordering the evacuation of villagers living on their slopes.