The Indonesian mountain Merapi, one of the most active volcanoes in the world, erupted twice on Sunday and sent 6,000-meter clouds of gray ash to the sky, the country's geological authority said.
The two outbreaks lasted about seven minutes, according to the agency, and prompted local authorities to order residents to stay outside a three-kilometer restricted area around the rumbling crater near Yogyakarta, Indonesia's cultural capital.
The agency did not raise the volcano's alarm status after the eruptions, but advised commercial aircraft to be cautious in the region.
Local media reported that people in neighboring areas, including Sleman and Klaten, heard loud rumbling noises this morning.
The last major eruption of Mount Merapi in 2010 killed more than 300 people and forced around 280,000 residents to be evacuated from the surrounding areas.
This was the strongest outbreak since 1930, killing around 1,300 people, while another explosion in 1994 killed around 60 people.
Indonesia has more than 17,000 islands and islets – and almost 130 active volcanoes.
The Southeast Asian archipelago is located on the Pacific "Ring of Fire", a huge zone of geological instability in which the collision of tectonic plates causes frequent quakes and great volcanic activity.
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