Warning! Mount Ili Lewotolok Erupts Again This Afternoon (Tuesday, April 15, 2025)

Mount Ili Lewotolok in East Nusa Tenggara erupted again on Tuesday, April 15, 2025, at 2:49 PM WITA. In the last week, Mount Ili Lewotolok has erupted 11 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 reach 300 meters above the peak (1,723 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 35 millimeters and a duration of 73 seconds.

According to the MAGMA Indonesia volcano activity report, the activity level of Mount Ili Lewotolok is at Level II (Alert). Seismic observations on April 15, 2025, from 00:00 to 23:59 WITA showed 186 eruption quakes with amplitudes of 20.1-35 millimeters and durations of 27-102 seconds.

Furthermore, there were 246 puffing quakes with amplitudes of 1-21.3 millimeters and durations of 20-86 seconds, and 3 harmonic tremors with amplitudes of 1.8-6.3 millimeters and durations of 43-131 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 east side of the peak/crater of Mount Ili Lewotolok.

During 2025, MAGMA Indonesia has recorded 2,842 volcanic eruptions/eruptions throughout Indonesia. Mount Semeru in East Java had the most eruptions (1,300 eruptions), while Mount Ili Lewotolok erupted 49 times.