Mount Lewotobi Laki-laki Erupts Again in the Early Hours of Today, Ash Column Reaches Approximately 800 Meters

Mount Lewotobi Laki-laki in East Nusa Tenggara erupted again on Sunday, April 20, 2025, at 03:55 WITA. In the last week, Mount Lewotobi Laki-laki has erupted 65 times.

Citing eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the ash column height was observed to reach 800 meters above the peak (2,384 meters above sea level).

The ash column was observed to be gray with thick intensity towards the north and northeast. The eruption was recorded on a seismograph with a maximum amplitude of 29.6 millimeters and a duration of 101 seconds.

According to the MAGMA Indonesia volcano activity report, the activity level of Mount Lewotobi Laki-laki is at Level III (Alert). Observations of seismic activity on April 20, 2025, from 18:00 to 23:59 WITA showed 5 eruption quakes with amplitudes of 7.4-14.8 millimeters and durations of 61-157 seconds.

Then, there were 6 tremor quakes with amplitudes of 2.9-7.4 millimeters and durations of 35-137 seconds, and 2 harmonic tremors with amplitudes of 2.9-4.4 millimeters and durations of 116-135 seconds.

PVMBG advises the public around Mount Lewotobi Laki-laki and visitors/tourists not to carry out any activities within a 6-kilometer radius of the eruption center of Mount Lewotobi Laki-laki.

During 2025, MAGMA Indonesia has recorded 3,023 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java had the most eruptions (1,353 eruptions), while Mount Lewotobi Laki-laki erupted 315 times.