Dramatic video footage showed Mount Agung sending up huge plume of dark volcanic ash at about 10pm local time last night on the holiday island of Bali.
The National Agency for Disaster Management (BNPB) spokesman Sutopo Purwo Nugroho shared a photograph of volcanic ash on someone’s T-shirt on Twitter.
A translation of Sutopo’s tweet said that volcanic ash fell on the villages of Badeg, Yeha, Temukus, Besakih and Muncan but the eruption only lasted a moment.
Mount Agung remains under the highest possible alert, which is known as level four or Awas. The danger zone covers an up to 10km radius from the summit.
Seismic graphs, from Magma Indonesia, shows that seismic activity has fallen since October but the risk of eruptions continues.
The Bali volcano has been intermittently sending up clouds of volcanic ash since Mount Agung first erupted in November.
It is not known predict how long Mount Agung will erupt or if a major eruptions could happen.
In late November, Bali was put on high alert when the volcano erupted and sent ash columns into the sky. Cold lava also poured down the volcano’s slopes.
Thousands of tourists were stranded due to flight cancellations and the temporary closure of airports on Bali and the neighbouring island of Lombok.
The British Foreign and Commonwealth Office (FCO) advise against all travel to within 10 kilometres of Mount Agung in East Bali due to ongoing volcanic activity.
The FCO said: “Following several months of increased volcanic activity, Mount Agung in East Bali began erupting on 21 November 2017.
“This has led to periodic closures at Bali and Lombok airports and disruption to flights in the region.
“The current period of increased volcanic activity may continue for some time and further disruption can’t be ruled out.
“In the event of a major eruption, areas beyond 10km may be affected, and the resulting ash plumes and release of particulate and gaseous pollutants into the air may have an impact on health.”