Warning! Mount Lewotobi Laki-laki Erupts Again Tonight (Saturday, September 6, 2025)

Mount Lewotobi Laki-laki in East Nusa Tenggara erupted again on Saturday (September 6, 2025) at 18:06 WITA. In the last week, Mount Lewotobi Laki-laki only erupted once.

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 1,000 meters above the peak or 2,584 meters above sea level.

The ash column was observed to be gray with moderate to thick intensity towards the southwest, west, and northwest. The eruption of Mount Lewotobi Laki-laki was still ongoing when this report was made.

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

According to MAGMA Indonesia''s volcanic activity report, the activity level of Mount Lewotobi Laki-laki is at Level III (Siaga/Alert). Seismicity observations on September 6, 2025, from 18:00-23:59 WITA showed 7 non-harmonic tremors with amplitudes of 2.2-7.4 millimeters and earthquake durations of 62-196 seconds.

Then, there were 11 deep volcanic earthquakes with amplitudes of 2.2-7.4 millimeters s-p 1-2 seconds and earthquake durations of 12-27 seconds, as well as 1 local tectonic earthquake with an amplitude of 2.9 millimeters s-p 8 seconds and an earthquake duration of 24 seconds.

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 center of Mount Lewotobi Laki-laki''s eruption.

Throughout 2025, MAGMA Indonesia has recorded 5,987 volcanic eruptions in all of Indonesia. Mount Semeru in East Java erupted the most (2,397 times) while Mount Lewotobi Laki-laki erupted 499 times.

(Read: Volcanic Eruption Trends in Recent Years)