Warning! This Morning Mount Ili Lewotolok Erupts Again (Monday, September 15, 2025)

Mount Ili Lewotolok in East Nusa Tenggara erupted again on Monday (9/15/2025) at 08.47 WITA. In the last week, Mount Ili Lewotolok has erupted 2 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached 400 meters above the peak (1,823 meters above sea level).

The ash column was observed to be white to grey with thick intensity towards the west. The eruption was recorded on a seismograph with a maximum amplitude of 9.6 millimeters and a duration of 37 seconds.

(Read: Earthquakes to Droughts, These Are the Natural Disasters That Frequently Occur in Indonesia Until Mid-2023)

According to the MAGMA Indonesia volcano activity report, the activity level of Mount Ili Lewotolok is at Level III (Alert). Seismic observations on September 15, 2025, from 00.00-06.00 WITA showed 54 eruption/explosion earthquakes with amplitudes of 14.2-28.4 millimeters and earthquake durations of 33-44 seconds. Additionally, 74 exhalation earthquakes with amplitudes of 2.6-9.9 millimeters and earthquake durations of 24-36 seconds occurred.

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, to be aware of the potential danger threats from lava falls/landslides and pyroclastic flows from the South and Southeast sectors, the West sector, and the Northeast sector of Mount Ili Lewotolok.

Throughout 2025, MAGMA Indonesia has recorded 6,108 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,450 times) while Mount Ili Lewotolok erupted 270 times.

(Read: 5.3 M Earthquake Shakes 17 Km West of Pasuquin,)