Mount Lewotobi Laki-laki Erupts Again This Morning, Ash Column 800 Meters Above Peak

Mount Lewotobi Laki-laki in East Nusa Tenggara erupted again on Sunday (28/9/2025) at 08:59 WITA. In the last week, Mount Lewotobi Laki-laki has erupted 78 times.

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 be approximately 800 meters above the peak (2,384 meters above sea level).

The ash column was observed to be grey with thick intensity towards the west. The eruption was recorded on a seismograph with a maximum amplitude of 4.4 millimeters and a duration of 93 seconds.

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

According to MAGMA Indonesia's volcano activity report, the activity level of Mount Lewotobi Laki-laki is at Level IV (Alert). Seismicity observations on September 28, 2025, from 00:00-06:00 WITA showed 3 times of emission earthquakes with amplitudes of 5.9-22.2 millimeters and earthquake durations of 37-49 seconds.

Subsequently, 2 low-frequency earthquakes with amplitudes of 2.2-2.9 millimeters and durations of 24-25 seconds, and 1 deep volcanic earthquake with an amplitude of 5.9 millimeters s-p 1.8 seconds and a duration of 13 seconds occurred.

PVMBG urges the public around Mount Lewotobi Laki-laki and visitors/tourists not to engage in any activities within a 6-kilometer radius and a 7-kilometer sectoral area from the Southwest-Northeast of the Mount Lewotobi Laki-laki eruption center.

Throughout 2025, MAGMA Indonesia has recorded 6,410 volcano eruptions in Indonesia. Mount Semeru in East Java erupted the most (2,519 times), while Mount Lewotobi Laki-laki erupted 640 times.

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