Indonesia has raised to maximum its alert on the Mount Semeru volcano in East Java, warning of potentially dangerous lava flows, an official at the country's vulcanology centre said on Saturday. The 3,376m Semeru is one of the most active volcanoes on Java island. Seven people were killed by the mountain's heat clouds in 1994. The alert status was raised on Friday afternoon after the number of volcanic quakes indicated there may be a bigger eruption, said Surono, head of the country's vulcanology center.
