Mount Lewotobi Laki-laki Erupts Again This Evening, Volcanic Ash Reaches 700 Meters Above the Summit

Mount Lewotobi Laki-laki in East Nusa Tenggara erupted again on Thursday, April 17, 2025, at 3:49 PM WITA. In the last week, Mount Lewotobi Laki-laki has erupted 15 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the ash column height was observed to be approximately 700 meters above the peak (2,284 meters above sea level).

The ash column was observed to be gray with thick intensity towards the north and northwest. The eruption was recorded on a seismograph with a maximum amplitude of 5.1 millimeters and a duration of 226 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 17, 2025, from 6:00 AM to 12:00 PM WITA showed 1 eruption earthquake with an amplitude of 7.4 millimeters and a duration of 84 seconds.

Then, there were 7 tremor earthquakes with amplitudes of 2.9-7.4 millimeters and durations of 42-126 seconds, and 6 harmonic tremors with amplitudes of 4.4-7.4 millimeters and durations of 38-164 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 2,913 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java had the most eruptions (1,327 eruptions), while Mount Lewotobi Laki-laki erupted 265 times.