Mount Ili Lewotolok Erupts Again This Morning, Eruption Height 300 Meters Above the Peak

Mount Ili Lewotolok in East Nusa Tenggara erupted again on Saturday (October 4, 2025) at 06:00 WITA. In the last week, Mount Ili Lewotolok has erupted 2 times.

Quoting 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 about 300 meters above the peak or 1,723 meters above sea level.

The ash column was observed to be white to grey with moderate intensity towards the west. The eruption was recorded on a seismograph with a maximum amplitude of 30.7 millimeters and a duration of 54 seconds.

(Read: These Are the Most Common Natural Disasters in Indonesia Until Early September 2023)

According to MAGMA Indonesia's volcano activity report, the activity level of Mount Ili Lewotolok is at Level III (Alert). Seismicity observations on October 4, 2025, at 00:00-06:00 WITA showed 88 eruption/explosion earthquakes with amplitudes of 8-33.6 millimeters and durations of 34-74 seconds. Subsequently, 85 exhalation earthquakes occurred with amplitudes of 1.6-7.4 millimeters and durations of 26-60 seconds.

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

Throughout 2025, MAGMA Indonesia has recorded 6,523 volcano eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,550 times) while Mount Ili Lewotolok erupted 287 times.

(Read: There Were 1.7 Thousand Natural Disasters in Indonesia Until Early June 2023, Mostly Floods)