Mount Lewotobi Laki-laki Erupts Again Today, Eruption Height Reaches 2,000 Meters

Mount Lewotobi Laki-laki in East Nusa Tenggara erupted again on Thursday (October 2, 2025) at 4:54 PM WITA. In the last week, Mount Lewotobi Laki-laki has erupted 30 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height reached 2,000 meters above the peak or 3,584 meters above sea level.

The ash column was observed to be gray with thick intensity towards the west and northwest. The eruption was recorded on a seismograph with a maximum amplitude of 29.6 millimeters and a duration of 208 seconds.

(Read: A 4.4 M Earthquake Shakes Babar, Indonesia)

According to MAGMA Indonesia's volcano activity report, the activity level of Mount Lewotobi Laki-laki is at Level III (Alert). Seismicity observations on October 2, 2025, from 06:00-12:00 WITA, showed 3 eruption/explosion earthquakes with amplitudes of 5.9-7.4 millimeters and earthquake durations of 75-158 seconds.

Furthermore, there were 7 non-harmonic tremors with amplitudes of 3.7-7.4 millimeters and earthquake durations of 96-207 seconds, and 2 low-frequency earthquakes with amplitudes of 2.9 millimeters and earthquake durations of 18-24 seconds.

PVMBG urged the public around Mount Lewotobi Laki-laki and visitors/tourists not to engage in any activities within a 6-kilometer radius from the center of Mount Lewotobi Laki-laki's eruption.

Throughout 2025, MAGMA Indonesia has recorded 6,503 volcanic eruptions across Indonesia. Mount Semeru in East Java erupted the most (2,545 times), while Mount Lewotobi Laki-laki erupted 673 times.

(Read: A 4.16 M Earthquake Shakes Mona Passage)