Volcano erupts in Indonesia's Mount Ibu island, spewing huge ash tower

A volcano in eastern Indonesia erupted on Monday, spewing a huge ash tower more than five kilometres into the sky after authorities raised its alert level to the second-highest last week.

No damage or casualties were immediately reported but images showed a column of ash soaring into the sky on Halmahera island in North Maluku province.

Authorities said it reached more than five kilometres above the volcano's peak, one of the biggest eruptions in recent months.

The grey-black ash column was observed with "thick intensity, leaning towards the west," Geology Agency head Muhammad Wafid said in a statement Monday.

Wafid urged nearby residents to wear facemasks and glasses when going outdoors to protect against falling volcanic ash.

The volcano erupted on Saturday on a smaller scale, spewing lava, belching ash several kilometres into the night sky, and causing lightning.

The alert level remained at the second-highest of a four-tiered system on Monday after authorities raised it last week, with an exclusion zone between three and five kilometres (two to three miles) around the volcano's crater.

Ibu is one of Indonesia's most active volcanos, erupting more than 21,000 times last year.

Geology Agency official Sofyan Primulyana said Ibu recorded an average of 58 eruptions per day in 2023.

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