Volcanic activity at Mount Lewotobi Laki-laki in East Nusa Tenggara increased again on Monday (13/7/2026). The Center for Volcanology and Geological Hazard Mitigation (PVMBG) recorded the eruption at 11:24 WITA, adding to a long list of eruptions from the volcano over the past week.
According to an official report via the MAGMA Indonesia application, the eruption's ash column was observed rising 800 meters above the peak of the crater, or approximately 2,384 meters above sea level. The thick gray volcanic material was reported to be moving towards the north and northeast. Seismographs recorded the eruption's vibration with a maximum amplitude of 29.6 millimeters and a duration of 106 seconds.
To date, the activity status of the volcano remains at Level III (Alert). PVMBG noted a fairly intense seismic pattern between 06:00 and 12:00 WITA, including two eruption earthquakes, nine non-harmonic tremors, and one low-frequency earthquake, indicating fluctuations in magma activity beneath the surface.
As a mitigation measure, the relevant authorities strongly urge local residents and tourists not to conduct any activities within a five-kilometer radius of the eruption center. This area has been designated an exclusion zone due to the potential danger of incandescent material ejection and hot clouds that could occur at any time.
Records from MAGMA Indonesia show that throughout 2026, Mount Lewotobi Laki-laki has erupted 390 times. This figure contributes to a total of 3,147 volcanic eruption events recorded across Indonesia during the same period, positioning Lewotobi as one of the most active volcanoes in the country at present.
