Mount Ili Lewotolok Erupts on Friday Morning, Status on Alert

Mount Ili Lewotolok in East Nusa Tenggara erupted again on Friday (16/1/2026) at 10:10 AM WITA. In the last week, Mount Ili Lewotolok had only one eruption.

Citing eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the ash column was observed to be around 350 meters above the peak or 1,773 meters above sea level.

The ash column appeared gray to black with thick intensity towards the east. The eruption was recorded on a seismograph with a maximum amplitude of 32.1 millimeters and a duration of 48 seconds.

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According to MAGMA Indonesia's volcanic activity report, the activity level of Mount Ili Lewotolok is at Level II (Alert). Seismicity observations on January 16, 2026, from 00:00-23:59 WITA showed 390 eruption tremors with amplitudes of 16.6-36.5 millimeters and durations of 30-110 seconds.

Furthermore, there were 456 exhalation tremors with amplitudes of 3.7-20.7 millimeters and durations of 30-60 seconds, and 27 non-harmonic tremors with amplitudes of 4.7-22.2 millimeters and durations of 100-210 seconds.

PVMBG urges the public around Mount Ili Lewotolok, as well as visitors/climbers/tourists, not to enter or conduct activities within a 2-kilometer radius from the center of Mount Ili Lewotolok's activity, and also not within the southern-southeast and western sectors up to 2.5 kilometers from the center of Mount Ili Lewotolok's activity.

Throughout 2026, MAGMA Indonesia has recorded 223 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (128 times), while Mount Ili Lewotolok erupted 8 times.

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