Mount Lewotobi Laki-laki Erupts Again This Afternoon (Saturday, August 23, 2025)

Mount Lewotobi Laki-laki in East Nusa Tenggara erupted again on Saturday (August 23, 2025) at 1:52 PM WITA. In the last week, Mount Lewotobi Laki-laki has erupted 16 times.

According to 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 around 600 meters above the peak (2,184 meters above sea level).

The ash column was observed to be gray with moderate to thick intensity towards the west. The eruption was recorded on a seismograph with a maximum amplitude of 5.9 millimeters and a duration of 104 seconds.

(Read: Number of Earthquake Victims in Indonesia in 2020-2024)

According to MAGMA Indonesia''s volcano activity report, the activity level of Mount Lewotobi Laki-laki is at Level IV (Alert). Seismic observations on August 23, 2025, from 06:00 AM to 12:00 PM WITA showed 2 exhalation earthquakes with amplitudes of 5.9-7.4 millimeters and durations of 33-43 seconds.

Then, 1 harmonic tremor with an amplitude of 4.4 millimeters and a duration of 64 seconds, and 5 non-harmonic tremors with amplitudes of 2.9-5.9 millimeters and durations of 64-138 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 to the Northeast of Mount Lewotobi Laki-laki''s eruption center.

Throughout 2025, MAGMA Indonesia has recorded 5,751 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,301 times), while Mount Lewotobi Laki-laki erupted 472 times.

(Read: Indonesia Becomes the Country Most Frequently Hit by Earthquakes per 2025)