Mount Ili Lewotolok Erupts Again This Morning (Saturday, August 9, 2025)

Mount Ili Lewotolok in East Nusa Tenggara erupted again on Saturday (August 9, 2025) at 10:47 AM WITA. In the last week, Mount Ili Lewotolok has erupted 15 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the observed ash column reached 300 meters above the peak (1,723 meters above sea level).

The ash column was observed to be gray with moderate intensity towards the west. The eruption was recorded on a seismograph with a maximum amplitude of 35 millimeters and a duration of 36 seconds.

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According to MAGMA Indonesia's volcano activity report, the activity level of Mount Ili Lewotolok is at Level III (Alert). Seismicity observations on August 9, 2025, from 00:00-06:00 WITA showed 51 eruption earthquakes with amplitudes of 8.6-36.9 millimeters and durations of 35-66 seconds.

Furthermore, there were 38 exhalation earthquakes with amplitudes of 1.6-8.5 millimeters and durations of 29-55 seconds, and 1 non-harmonic tremor with an amplitude of 3.1 millimeters and a duration of 138 seconds.

PVMBG urges the public around Mount Ili Lewotolok, as well as visitors/climbers/tourists, not to enter or conduct activities within a 3-kilometer radius from the center of Mount Ili Lewotolok's activity, and to be aware of the potential dangers from lava falls/landslides and pyroclastic clouds from the South and Southeast sectors, West sector, and Northeast sector of Mount Ili Lewotolok.

Throughout 2025, MAGMA Indonesia has recorded 5,528 volcano eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,209 times), while Mount Ili Lewotolok erupted 220 times.

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