Mount Ili Lewotolok Erupted on Monday Afternoon, Status Set to Alert
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Mount Ili Lewotolok in East Nusa Tenggara erupted again on Monday (7/9/2026) at 11.43 WITA. This volcano has erupted 3 times in the past week.
Based on eruption data from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached approximately 600 meters above the crater peak (2023 meters above sea level).
The thick grey ash column drifted towards southwest and west. This eruption was recorded on seismograph with maximum 40 mm amplitude and 32 seconds duration.
(Read: Number of Damaged Houses due to Floods & Landslides in Sumatra (16 December 2025))
Per MAGMA Indonesia volcanic activity report, Mount Ili Lewotolok remains at Activity Level II (Alert). Seismic monitoring on 7 September 2026 (00.00-23.59 WITA) recorded 291 eruption earthquakes (22.1-40 mm amplitude, 20-150 sec duration).
Additionally, 74 emission earthquakes (5.5-33.2 mm amplitude, 20-65 sec duration) and 11 harmonic tremors (2.2-40 mm amplitude, 53-212 sec duration) were detected.
PVMBG urges local residents, visitors, hikers and tourists to avoid entering the 2 km exclusion zone, and 3 km restricted zone on the southern & southeastern sectors of the volcano.
During 2026, MAGMA Indonesia recorded 4,481 volcanic eruptions across Indonesia. Mount Semeru (East Java) recorded the highest eruptions at 1,755 events, while Mount Ili Lewotolok recorded 91 eruptions.
(Read: Two Months of Sumatra Floods: 1,204 Fatalities, 140 Missing (Tuesday, 27 January 2026))
"Disclosure: This is an AI-generated translation of the original article. We strive for accuracy, but please note that automated translations may contain errors or slight inconsistencies."
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