Mount Lewotobi Laki Laki in south-central Indonesia erupted on Tuesday (17 June), sending a towering ash plume 10,000 meters into the sky. Authorities raised the eruption alert to the highest level and extended the danger zone to 8 kilometers. The eruption followed an intense spike in volcanic activity—50 incidents in two hours, far above the daily average. No casualties were reported. Ash clouds were seen from cities 90 to 150 kilometers away. “Yes, this is the first time I have seen an eruption this big,” said local villager Frans Kino. Residents were warned about possible lava flows triggered by rainfall.

Mount Lewotobi Laki-Laki, a 1,584-metre-high twin-peaked volcano on the tourist island of Flores, erupted at 5:35 pm local time, the volcanology agency said in a statement.

Authorities recorded the volcano unleashing 10,000 metres (32,800 feet) of thick grey clouds.