Dukono Volcano in Indonesia was upgraded to level 3 alert (out of maximum 4) on 30th May 2008. Volcanic explosion earthquakes increased from 32/day to 280/day between April and May 2008. On 25th May, ash emissions reached 800 m above the crater, and booming noises were heard coming from the summit. Ash emissions reached 1000 m above the summit on 29th May. Residents close to the volcano are warned to be alert for ashfall. A 3 km exclusion zone has been placed around the volcano. The volcano was on alert level 2 between January 2002 and May 2008.
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