Mount Ili Lewotolok Erupts Again This Morning, Ash Plume Around 500 Meters High

Mount Ili Lewotolok in East Nusa Tenggara erupted again on Monday (19/1/2026) at 08:59 WITA. In the last week, Mount Ili Lewotolok has erupted twice.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the ash column was observed to be approximately 500 meters above the peak (1,923 meters above sea level).

The ash column was observed to be gray to black with thick intensity towards the east. The eruption was recorded on a seismograph with a maximum amplitude of 21.4 millimeters and a duration of 75 seconds.

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According to MAGMA Indonesia's volcanic activity report, Mount Ili Lewotolok's activity level is at Level III (Alert). Seismicity observations on January 19, 2026, at 00:00-06:00 WITA, showed 96 eruption/explosion earthquakes with amplitudes of 20.1-38 millimeters and earthquake durations of 31-103 seconds.

Subsequently, there were 102 exhalation earthquakes with amplitudes of 2.8-20 millimeters and durations of 29-56 seconds, and 4 non-harmonic tremors with amplitudes of 3-15.8 millimeters and durations of 118-172 seconds.

PVMBG urges the public around Mount Ili Lewotolok as well as visitors/climbers/tourists not to enter and not to carry out activities within a 3-kilometer radius from the center of Mount Ili Lewotolok's activity.

Throughout 2026, MAGMA Indonesia has recorded 268 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (152 times), while Mount Ili Lewotolok erupted 14 times.

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