Mount Lewotobi Laki-laki Erupted Early Saturday, Status is Warning

Mount Lewotobi Laki-laki in East Nusa Tenggara erupted again on Saturday (August 9, 2025) at 02:39 WITA. In the last week, Mount Lewotobi Laki-laki has erupted 3 times.

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 1,200 meters above the peak or 2,784 meters above sea level.

The observed ash column was grey with thick intensity towards the west and northwest. The eruption was recorded on a seismograph with a maximum amplitude of 9.6 millimeters and a duration of 64 seconds.

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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 9, 2025, at 18:00-23:59 WITA, showed 1 eruption earthquake with an amplitude of 11 millimeters and a duration of 73 seconds.

Furthermore, there were 10 non-harmonic tremors with amplitudes of 3.7-7.4 millimeters and durations of 70-147 seconds, and 3 low-frequency earthquakes with amplitudes of 2.9-4.4 millimeters and durations of 19-23 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 5,525 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,208 times) while Mount Lewotobi Laki-laki erupted 451 times.

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