Mount Lewotobi Laki-laki Erupts Again Tonight, Eruption Height Reaches 800 Meters Above the Peak

Mount Lewotobi Laki-laki in East Nusa Tenggara erupted again on Saturday, April 5, 2025, at 00.27 WITA (West Indonesia Time). In the last week, Mount Lewotobi Laki-laki has erupted 12 times.

According to eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height reached 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 5.6 millimeters and a duration of 148 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 5, 2025, from 18.00 to 23.59 WITA showed 18 instances of tremor with amplitudes of 2.2-7.4 millimeters and durations of 24-168 seconds. There was also 1 deep volcanic earthquake with an amplitude of 2.9 millimeters, an S-P time of 1.2 seconds, and a duration of 10 seconds.

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

During 2025, MAGMA Indonesia has recorded 2,604 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java had the most eruptions (1,206 times), while Mount Lewotobi Laki-laki erupted 235 times.