Mount Lewotobi Laki-Laki on the tourist island of Flores erupted shortly after midnight, Indonesia's volcanology agency reported.

The Philippine Institute of Volcanology and Seismology (Phivolcs) raised Bulusan’s alert status from 0 to 1 on its five-level scale, signalling low-level volcanic unrest and warning of possible phreatic eruptions.

The 3,676-metre-high volcano, located on the boundary of Lumajang and Malang districts, is now at the second level of danger.

The Centre for Volcanology and Geological Hazard Mitigation (PVMBG) reported that the eruption, from the nearly 3,900-metre-high volcano, produced seismic activity with a maximum amplitude of 30.3 millimetres and lasted 42 seconds.

Local authorities are closely monitoring the impact of the ash column on residential areas, and they are recommending the closure of offices and schools as a precautionary measure.

The eruption of the 3,676-metre-high volcano happened between 2:38 am and 9:27 am (local time), with southwesterly winds.

The volcano, situated on Halmahera Island, spewed a column of ash up to 2,000 metres into the sky. Thick white-to-grey clouds drifted south of the crater.

Mount Lewotobi Laki-Laki, which stands 1,703 meters tall, has erupted multiple times in recent months. In November, a series of eruptions killed nine people, forced thousands to flee, and disrupted international flights to Bali.

The Office of Civil Defense (OCD) said the “urgent” evacuation of 87,000 people was already underway on December 9 evening, after the eruption of Negros Island’s Kanlaon volcano.

The Philippine Institute of Volcanology and Seismology (Phivolcs) reported on December 9 that Mount Kanlaon, located in central Philippines, has erupted, spewing an ash column as high as 3,000m.

Mount Dukono, situated in Indonesia's eastern North Maluku province, erupted on November 26, prompting a warning for aviation, according to the country's Volcanology and Geological Disaster Mitigation Centre.

The Indonesian Ministry of Energy and Mineral Resources' Geological Agency has warned three villages in East Flores, East Nusa Tenggara, of the risk of cold lava floods in rivers originating at Mount Lewotobi Laki-laki's peak.

Several airlines resumed flights to Bali, Indonesia on November 14, after cancelling trips to and from the resort island due to huge eruptions at a nearby volcano.

Mount Lewotobi Laki-Laki in eastern Indonesia on November 8 continued to spewing a 8,000-m high column of hot ash in an eruption that has lasted nearly a week.

Indonesia’s Mount Lewotobi Laki-laki erupted again on November 7, spewing a 2,500 metre high column of hot ash, just three days after a midnight eruption killed nine people and injured 64 others.

The East Nusa Tenggara provincial government has declared a 58-day emergency status in response to the eruption of Mount Lewotobi Laki-Laki which began on November 3 and has caused serious consequences.

At least nine people died after Mount Lewotobi Laki-Laki in Flores Island, Nusa Tenggara province, eastern Indonesia erupted on November 3.

Mount Ibu on Halmahera island in North Maluku province of Indonesia erupted again on June 2, sending a column of ash about 7 kilometres high from the main summit crater.

Mount Ibu, located on remote Halmahera island in eastern Indonesia, erupted on May 20, belching a tower of volcanic ash 5,000 metres above its peak, according to Indonesia's Centre for Volcanology and Geological Hazard Mitigation (PVMBG).

An Indonesian official said on May 17 that hundreds of people living near an erupting volcano in eastern Indonesia have been evacuated after authorities raised its alert status to the highest level.