Mount Ili Lewotolok Erupted Thursday Afternoon; Status Remains on Alert

Mount Ili Lewotolok in East Nusa Tenggara erupted again on Thursday, February 27, 2025, at 2:39 PM WITA. In the last week, Mount Ili Lewotolok has erupted 24 times.

Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height reached 700 meters above the peak (2,123 meters above sea level).

The ash column was observed to be gray with thick intensity towards the west. The eruption was recorded on a seismograph with a maximum amplitude of 29.8 millimeters and a duration of 90 seconds.

According to the MAGMA Indonesia volcano activity report, the activity level of Mount Ili Lewotolok is at Level II (Alert). Observations of seismic activity on February 27, 2025, from 00:00 to 23:59 WITA showed 173 eruption quakes with amplitudes of 20.6-38.7 millimeters and durations of 32-173 seconds.

Furthermore, there were 72 tremor events with amplitudes of 1.6-17.5 millimeters and durations of 21-81 seconds, and 16 harmonic tremors with amplitudes of 1.2-5.3 millimeters and durations of 77-296 seconds.

PVMBG advises the public around Mount Ili Lewotolok, as well as visitors/climbers/tourists, not to enter or carry out activities within a 2-kilometer radius of the center of Mount Ili Lewotolok's activity, and that the residents of Lamatokan and Jontona villages should remain vigilant against the potential dangers of lava collapses/landslides from the eastern part of the peak/crater of Mount Ili Lewotolok.

During 2025, MAGMA Indonesia has recorded 1,694 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java had the most eruptions (802 eruptions), while Mount Ili Lewotolok erupted 25 times.