Mount Ili Lewotolok Erupted on Saturday Morning, Its Status is Alert

Mount Ili Lewotolok in East Nusa Tenggara erupted again on Saturday (August 9, 2025) at 06:13 WITA. In the last week, Mount Ili Lewotolok has erupted 14 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 was approximately 200 meters above the peak (1,623 meters above sea level).

The observed ash column was gray with moderate intensity, moving westward. The eruption was recorded on a seismograph with a maximum amplitude of 20.3 millimeters and a duration of 30 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 eruptive earthquakes with amplitudes of 8.6-36.9 millimeters and durations of 35-66 seconds.

Furthermore, there were 38 emission 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 potential hazards from lava avalanches/landslides and pyroclastic flows from the South and Southeast sectors, West sector, and Northeast sector of Mount Ili Lewotolok.

Throughout 2025, MAGMA Indonesia has recorded 5,526 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,208 times), while Mount Ili Lewotolok erupted 219 times.

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