Warning! Mount Lewotobi Laki-laki Erupts Again Tonight (Thursday, September 25, 2025)

Mount Lewotobi Laki-laki in East Nusa Tenggara erupted again on Thursday (25/9/2025) at 00:08 WITA. In the last week, Mount Lewotobi Laki-laki has erupted 44 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 was observed to be approximately 800 meters above the peak (2,384 meters above sea level).

The ash column was observed to be white to gray with moderate to thick intensity towards the southwest and west. The eruption was recorded on a seismograph with a maximum amplitude of 4.4 millimeters and a duration of 95 seconds.

(Read: Volcanic Eruption Trends in Recent Years)

According to MAGMA Indonesia''s volcano activity report, the activity level of Mount Lewotobi Laki-laki is at Level IV (Awas/Alert). Seismicity observations on September 25, 2025, from 18:00-23:59 WITA, showed 1 eruption earthquake with an amplitude of 14.8 millimeters and a duration of 44 seconds.

Additionally, there were 5 exhalation earthquakes with amplitudes of 2.9-11 millimeters and durations of 31-35 seconds, and 6 non-harmonic tremors with amplitudes of 2.9-5.6 millimeters and durations of 77-140 seconds.

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 sectoral area of 7 kilometers from the eruption center of Mount Lewotobi Laki-laki, extending from Southwest to Northeast.

Throughout 2025, MAGMA Indonesia has recorded 6,311 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,482 times), while Mount Lewotobi Laki-laki erupted 606 times.

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