Mount Agung has been spewing a destructive mudflow for the past week as the Bali volcano continues to spout steam.
The footage, captured by national disaster management agency BNPB spokesman Sutopo Purwo Nugroho, shows the rushing grey torrents. He told the public to stay away.
But he also said that once Mount Agung is back to normal, the remnants of the mudflow will no longer be harmful.
Since the Bali volcano erupted on November 21, lahars have flowed down from the summit along rivers in the southern and northern sector of the volcano.
The latest Magma Indonesia update said: “These lahars have not resulted in fatalities. However, lahars have impacted houses, roads and agricultural areas.”

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The thick columns of dark ash seen last week have been replaced by a much less intense plume of steam, Indonesia’s Volcanology and Geological Disaster Mitigation Agency (PVMBG) said on Monday.
This morning white steam could be be seen rising up to 1,500 metres above the volcano’s summit.
But the volcano alert in Bali remains at its maximum level, with experts warning that an eruption could still happen at any time.
Heather Handley, a volcanologist at Sydney’s Macquarie University, explained that Mount Agung is “clearly still in an active phase”.
“At all volcanoes we can expect fluctuations in activity,” she told Associated Press. “This does not mean that the threat is over.”
However, despite ash and smoke emissions slowing down, experts are warning an “imminent eruption” is still a big threat to areas surrounding Mount Agung.
But for now, travellers – many of whom have been stuck waiting to catch a flight for several days – should now be able to get home.