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More Tremors Shake Comoros After Volcano Eruption
Moroni, Indian Ocean (AFP) Jan 15, 2007 About a dozen new tremors shook the Comoros after the weekend eruption of the Mount Karthala volcano but the threat to residents appeared to be receding, emergency services said Monday. The latest tremors were felt in different areas of Grande Comore, the main island in the Indian Ocean archipelago where the volcano is located, but of lower magnitude than those Saturday and Sunday, they said. "There has been a fall in the level of frequency and intensity of the tremors," the national emergency operations centre said in a statement, adding that authorities remain on "red alert" to deal with any threat posed. The tremors, first felt after an eruption in the volcano's main crater late Friday, caused no casualties or damage, although some residents fled their homes in the shadow of the mountain after the earth shook on Saturday night. Colonel Mogne Daho, head of the emergency centre, told AFP that a team of scientists from the nearby island of Reunion was expected in the capital Moroni this week in the wake of the volcanic activity. There have been a number of scares in recent years after activity in the 2,361-meter (7,746-foot) Mount Karthala, the only active volcano in the three-island chain. In May 2006, the mountain spat up smoke and jets of molten into its crater, creating eerily glowing red clouds in the night skies over the capital Moroni just 15 kilometers (nine miles) away. In November 2005, it spewed huge plumes of ash that blanketed the isle and the capital, temporarily depriving the city's 250,000 inhabitants of potable water. In April 2005, nearly 10,000 villagers at the base of the mountain fled their homes after similar emissions of ash started widespread fears of drinking-water contamination. Mount Karthala last had an overflow magma eruption in 1977, when lava destroyed the village of Singani, some 20 kilometres (12 miles) south of Moroni, and toxic gas was released into the air but did not cause any deaths.
Source: Agence France-Presse Related Links When the Earth Quakes
New Method Provides Better Earthquake Warnings
Sweden (SPX) Jan 16, 2007The new method of analysis makes it possible to estimate the complete stress tensor and monitor changes in the magnitude of stress and the instability of faults, which roots the analysis in physics in a manner that earthquake methods normally lack. This makes the method more generally valid, thus facilitating efforts to provide warnings. |
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