Warning! Mount Lewotobi Laki-laki Erupts Again This Afternoon (Friday, September 19, 2025)

Mount Lewotobi Laki-laki in East Nusa Tenggara erupted again on Friday (September 19, 2025) at 14:32 WITA. In the last week, Mount Lewotobi Laki-laki has only erupted once.

Citing eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the ash column was observed to reach 1,000 meters above the peak (2,584 meters above sea level).

The ash column was observed to be gray with thick intensity towards the north and northeast. The eruption was recorded on a seismograph with a maximum amplitude of 7.4 millimeters and a duration of 132 seconds.

(Read: Countries with the Most Active Volcanoes in the World, Indonesia Ranks First)

According to MAGMA Indonesia''s volcano activity report, Mount Lewotobi Laki-laki''s activity level is at Level III (Alert). Seismicity observations on September 19, 2025, from 06:00-12:00 WITA showed 2 exhalation earthquakes with amplitudes of 4.4-11 millimeters and durations of 37-42 seconds. Additionally, 8 non-harmonic tremors with amplitudes of 4.4-7.4 millimeters and durations of 79-131 seconds were recorded.

PVMBG urges the public around Mount Lewotobi Laki-laki and visitors/tourists not to engage in any activities within a 6-kilometer radius from the eruption center of Mount Lewotobi Laki-laki.

Throughout 2025, MAGMA Indonesia has recorded 6,150 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,462 times) while Mount Lewotobi Laki-laki erupted 500 times.

(Read: Indonesia Has the Most Active Volcanoes in the World)