Mount Lewotobi Laki-laki Erupted on Saturday Night, Its Status is Alert

Mount Lewotobi Laki-laki in East Nusa Tenggara erupted again on Saturday (27/9/2025) at 00:54 WITA. In the last week, Mount Lewotobi Laki-laki has erupted 64 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 around 500 meters above the peak or 2,084 meters above sea level.

The ash column was observed to be gray with thick intensity towards the southwest and west. The eruption was recorded on a seismograph with a maximum amplitude of 14.8 millimeters and a duration of 100 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 (Alert). Seismicity observations on September 27, 2025, from 18:00-23:59 WITA showed 2 eruption earthquakes with amplitudes of 22.2-29.6 millimeters and earthquake durations of 77-86 seconds.

Furthermore, there were 4 emission earthquakes with amplitudes of 2.9-14.8 millimeters and earthquake durations of 44-56 seconds, and 2 non-harmonic tremors with amplitudes of 2.9-7.4 millimeters and earthquake durations of 84-95 seconds.

PVMBG urges the public around Mount Lewotobi Laki-laki and visitors/tourists not to carry out any activities within a 6-kilometer radius and a southwest-northeast sectoral distance of 7 kilometers from the eruption center of Mount Lewotobi Laki-laki.

Throughout 2025, MAGMA Indonesia has recorded 6,371 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,504 times), while Mount Lewotobi Laki-laki erupted 626 times.

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