Mount Lewotobi Laki-laki Erupted on Friday Night, Status is Warning

Mount Lewotobi Laki-laki in East Nusa Tenggara erupted again on Friday (August 1, 2025) at 8:48 PM WITA. In the last week, Mount Lewotobi Laki-laki erupted only once.

Citing eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the observed ash column reached 1,000 meters above the peak or 11,584 meters above sea level.

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

(Read: Floods Dominate Natural Disasters in Indonesia at the End of February 2024)

According to the MAGMA Indonesia volcano activity report, the activity level of Mount Lewotobi Laki-laki is at Level IV (Warning). Seismic observations on August 1, 2025, from 12:00 PM to 6:00 PM WITA, showed 1 exhalation earthquake with an amplitude of 7.4 millimeters and a duration of 33 seconds.

Then, 6 non-harmonic tremors with amplitudes of 2.9-7.4 millimeters and durations of 68-142 seconds, and 2 deep volcanic earthquakes with amplitudes of 3.7-7.4 millimeters s-p 1.3-1.9 seconds and durations of 11-14 seconds.

PVMBG urges the community 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 5,410 volcanic eruptions across Indonesia. Mount Semeru in East Java erupted the most (2,173 times) while Mount Lewotobi Laki-laki erupted 447 times.

(Read: There Were 2 Thousand Natural Disasters in Indonesia in 2024, Floods Dominated)