Mount Ili Lewotolok Erupted Again Today, Eruption Height Reached 600 Meters
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Mount Ili Lewotolok in East Nusa Tenggara erupted again on Friday (11/9/2026) at 17:42 WITA. Over the past week, this volcano has erupted 26 times.
According to eruption data from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached 600 meters above the crater peak (2023 meters above sea level).
The ash column appeared grey to black, thick, drifting towards southwest and west. This eruption was recorded on seismograph with maximum 40 mm amplitude, lasting 33 seconds.
(Read: Two Months of Sumatra Floods: 1,204 Dead, 140 Missing (Tuesday 27 January 2026))
Per MAGMA Indonesia activity reports, Mount Ili Lewotolok is currently at Activity Level II (Alert). Seismic monitoring on 11 September 2026 (00:00-23:59 WITA) recorded 322 eruption earthquakes (22-40 mm amplitude, 35-101 sec duration).
Additionally, 84 emission earthquakes (4.4-33.2 mm amplitude, 20-65 sec duration) and 5 harmonic tremors (4.4-40 mm amplitude, 116-200 sec duration) were detected.
PVMBG urges local residents, visitors, hikers and tourists not to enter or carry out activities within 2 km radius, and 3 km radius for south / southeast sectors from the volcano active centre.
During 2026, MAGMA Indonesia logged 4,575 volcanic eruptions across Indonesia. Mount Semeru (East Java) recorded the highest eruptions at 1,781 events, while Mount Ili Lewotolok recorded 114 eruptions.
(Read: Damaged Houses Count from Sumatra Floods & Landslides (17 December 2025))
"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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