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Philippines Volcano Eruption May Have Run Its Course
Manila (AFP) Sep 07, 2006 The Mayon volcano's eight-week eruption is nearing its end, giving fresh hope to tens of thousands of people displaced by its lava flows, Philippine authorities said Thursday. More than 40,000 people were ordered off the lower slopes of the country's most active and deadly volcano when scientists warned of an imminent eruption following weeks of quiet lava flows that incinerated farmlands. The Philippine Institute of Volcanology and Seismology said in a statement it "is continuously assessing activity and if downward trends are evident in the coming days, then the appropriate recommendation for lowering the alert status shall be made." However, the institute did not say when the evacuees could return to their homes, which are within an eight kilometers (five miles) danger zone of the Mayon crater. The civil defense office in Manila said around 30,000 people still remained in temporary evacuation centers, including schoolrooms, more than a month after they were evacuated. Towering 8,070-feet (2,460-meters) above the city of Legaspi the volcano's symmetrical dome has been compared to Japan's iconic Mount Fuji. The last deadly eruption occurred in 1993 when lava flows killed 68 people and prompted the evacuation of 60,000 people. Mayon has had 47 eruptions in recorded history with its most deadly recorded in the 19th century when lava buried the town of Cagsawa killing an estimated 1,000 people.
Source: Agence France-Presse Related Links A world of storm and tempest 
Decompression-Driven Crystallization Warms Pathway for Volcanic Eruptions
Eugene OR (SPX) Sep 08, 2006The reason may be counter-intuitive, but the more magma crystallizes, the hotter it gets and the more likely a volcano will erupt, according to a team of scientists that includes a University of Oregon geologist. The knowledge likely will aid monitoring of conditions at Mount St. Helens and other volcanic hot spots around the world. |
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