Mount Ili Lewotolok Erupts Again Tonight, Ash Column Reaches Approximately 200 Meters

Mount Ili Lewotolok in East Nusa Tenggara erupted again on Monday, February 17, 2025, at 00:12 WITA. In the last week, Mount Ili Lewotolok has erupted 14 times.

According to 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 approximately 200 meters above the peak (1,623 meters above sea level).

The ash column was observed to be white to gray with thick intensity towards the southeast. The eruption was recorded on a seismograph with a maximum amplitude of 7.1 millimeters and a duration of 44 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 17, 2025, from 00:00 to 23:59 WITA showed 8 eruption quakes with amplitudes of 3.3-7.1 millimeters and durations of 33-50 seconds.

Furthermore, there were 72 emission quakes with amplitudes of 1.1-10.1 millimeters and durations of 14-54 seconds, and 2 deep volcanic quakes with amplitudes of 3.5-7.7 millimeters, s-p 0.5-0.9 seconds, and durations of 11-16 seconds.

PVMBG urges 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 always be aware of 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 1,314 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java had the most eruptions (659 times), while Mount Ili Lewotolok erupted 14 times.