Indonesia raises alert level for Java volcano

Indonesia raises alert level for Java volcano

Indonesia raises alert level for Java volcano

Updated 19 December 2011, 16:00 AEDT

Indonesia's vulcanology office has raised the alert level on the tallest volcano on Java after it ejected heat clouds down its slopes.

The alert level of Mount Semeru has been lifted to "be prepared" -- two levels below eruption.

An observer on the slopes says the volcano has ejected heat clouds six times and the longest was 3,000 metres long.

He says that activity at the 3,676-metre high volcano in East Java isn't considered dangerous as only one volcanic earthquake has been registered and the nearest village is 10 kilometres away.