Alert! Mount Ili Lewotolok Erupted Again This Afternoon (Monday, 21 September 2026)
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Mount Ili Lewotolok in East Nusa Tenggara erupted again on Monday (21/9/2026) at 17:31 WITA. This volcano has erupted 4 times within the past week.
According to eruption data from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached 800 meters above the crater peak, or 2223 meters above sea level.
The thick grey ash column drifted west and northwest. This eruption was registered on seismographs with maximum 40 mm amplitude and 27 second duration.
(Read: From Earthquakes To Drought: These Are The Most Common Natural Disasters In Indonesia Up To Mid 2023)
Per MAGMA Indonesia volcanic activity reports, Mount Ili Lewotolok remains at Activity Level II (Alert). Seismic monitoring on 21 September 2026 00:00–23:59 WITA recorded 277 eruption earthquakes (8.8–40 mm amplitude, 35–114 second duration).
Additionally, 2 rockfall earthquakes (4.4–11.1 mm amplitude, 41–70 second duration) and 112 gas emission earthquakes (0.6–27.6 mm amplitude, 24–60 second duration) were detected.
PVMBG warns local residents, visitors, hikers and tourists not to enter or conduct activities within 2 km radius, and within 3 km radius for south / southeast sectors from the volcano active centre.
Throughout 2026, MAGMA Indonesia logged 4740 volcanic eruptions across Indonesia: Mount Semeru (East Java) recorded the highest eruptions at 1840 events, while Mount Ili Lewotolok recorded 148 eruptions.
(Read: The 10 Largest Earthquakes In Recorded History, Two Of Which Occurred In Indonesia)
"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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