Warning! Mount Lewotobi Laki-laki Erupts Again This Morning (Sunday, September 21, 2025)

Mount Lewotobi Laki-laki in East Nusa Tenggara erupted again on Sunday (9/21/2025) at 08.23 WITA. In the last week, Mount Lewotobi Laki-laki has erupted 32 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the ash column observed reached 800 meters above the peak or 2,384 meters above sea level.

The ash column was observed to be gray with thin intensity towards the southwest. The eruption was recorded on a seismograph with a maximum amplitude of 44.4 millimeters and a duration of 77 seconds.

(Read: Bekasi Flood Risk Index Highest in Jabotabek)

According to the MAGMA Indonesia volcano activity report, the activity level of Mount Lewotobi Laki-laki is at Level IV (Alert). Seismicity observations on September 21, 2025, from 00.00-06.00 WITA showed 1 eruption earthquake with an amplitude of 7.4 millimeters and a duration of 71 seconds.

Furthermore, 5 rockfall earthquakes with amplitudes of 2.9-7.4 mm and durations of 43-58 seconds, and 3 emission earthquakes with amplitudes of 3.7-7.4 millimeters and durations of 46-60 seconds occurred.

PVMBG urged the public around Mount Lewotobi Laki-laki and visitors/tourists not to carry out any activities within a 6-kilometer radius and a 7-kilometer sectoral distance from the southwest-northeast direction from the center of the Mount Lewotobi Laki-laki eruption.

Throughout 2025, MAGMA Indonesia has recorded 6,193 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,465 times), while Mount Lewotobi Laki-laki erupted 531 times.

(Read: Distribution of Jakarta Flood Points (July 8, 2025 at 07.00 WIB))