Mount Lewotobi Laki-laki Erupts Three Times This Morning, Eight Villages on Alert

Mount Lewotobi Laki-laki in East Flores Regency, East Nusa Tenggara (NTT), erupted three times between 00:00 and 06:00 WITA on Tuesday (9/6/2026). Residents in eight villages on the volcano’s slopes have been advised to remain vigilant against the potential for volcanic mudflows (lahar).

The volcano, which stands at 1,584 metres above sea level, ejected ash columns reaching heights of 800 to 1,200 metres with grey smoke. Despite multiple eruptions in recent days, Mount Lewotobi Laki-laki remains at Alert Level III (Siaga).

Herman Yoseph S Mboro, an official from the Mount Lewotobi Laki-laki Observation Post, explained that the eruptions also produced two lava deposits: one extending 4,340 metres northeast of the eruption centre and another 3,800 metres northwest.

“There were three eruptions with amplitudes of 29.6–44.4 millimetres and durations of 93–184 seconds,” Herman stated in an official report on Tuesday. Recorded seismic activity included three bursts, four non-harmonic tremors, two deep volcanic tremors, and two distant tectonic tremors.

Herman urged the public, including visitors and tourists near Mount Lewotobi Laki-laki, to avoid all activities within a 5 km radius of the eruption centre. Residents are advised to remain vigilant yet calm, and to follow the directives issued by the East Flores Regency Government.

“Communities near Mount Lewotobi Laki-laki must be wary of potential volcanic mudflows in rivers originating from the peak if high-intensity rainfall occurs, particularly in the areas of Dulipali, Padang Pasir, Nobo, Nurabelen, Klatanlo, Hokeng Jaya, Boru, and Nawakote,” Herman explained. He also advised those affected by ashfall to wear masks or nose and mouth coverings to avoid the respiratory dangers of volcanic ash.