Warning! Mount Ili Lewotolok Erupts Again This Morning (Saturday, January 17, 2026)

Mount Ili Lewotolok in East Nusa Tenggara erupted again on Saturday (January 17, 2026) at 09:09 WITA. In the last week, Mount Ili Lewotolok has erupted 3 times.

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 around 500 meters above the peak (1,923 meters above sea level).

The ash column was observed to be white to grey with thick intensity towards the east. The eruption was recorded on a seismograph with a maximum amplitude of 36.2 millimeters and a duration of 85 seconds.

(Read: Volcanic Eruption Trends in Recent Years)

According to MAGMA Indonesia's volcanic activity report, the activity level of Mount Ili Lewotolok is at Level II (Alert). Seismic observations on January 17, 2026, from 00:00-23:59 WITA showed 277 eruption/explosive earthquakes with amplitudes of 16.4-34.7 millimeters and earthquake durations of 33-100 seconds.

Furthermore, there was 1 rockfall earthquake with an amplitude of 6.5 mm and a duration of 91 seconds, and 518 shallow volcanic earthquakes with amplitudes of 5.6-18.2 millimeters and earthquake durations of 51-56 seconds.

PVMBG urged the public around Mount Ili Lewotolok, as well as visitors/climbers/tourists, not to enter or engage in activities within a 2-kilometer radius from the center of Mount Ili Lewotolok's activity, and in the south-southeast and west sectors up to 2.5 kilometers from the center of Mount Ili Lewotolok's activity.

Throughout 2026, MAGMA Indonesia has recorded 231 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (129 times), while Mount Ili Lewotolok erupted 10 times.

(Read: Countries with the Most Active Volcanoes in the World, Indonesia Ranks First)