Mount Ili Lewotolok Erupted Again This Afternoon, Volcanic Ash Height Around 600 Meters
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Mount Ili Lewotolok in East Nusa Tenggara erupted again on Saturday (12/9/2026) at 12.04 WITA. In the past week, this volcano has erupted 31 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 peak (2023 meters above sea level).
The ash column appeared white to grey, with thick intensity drifting westward. The eruption was recorded on seismographs with a maximum amplitude of 40 millimeters and lasted 61 seconds.
(Read: Floods and Extreme Weather: Most Common Disasters in Indonesia in 2025)
Per MAGMA Indonesia volcanic activity reports, Mount Ili Lewotolok is currently at Activity Level II (Alert). Seismic monitoring on 12 September 2026 (00.00-23.59 WITA) recorded 369 eruption earthquakes with amplitude 22.1-40 mm and duration 27-160 seconds; 4 rockfall earthquakes (8.8-40 mm, 41-98 sec); and 141 emission earthquakes (8.8-40 mm, 22-63 sec).
PVMBG urges local residents, visitors, hikers and tourists to avoid all activity within a 2 km radius, plus 3 km exclusion zone in the southern and southeastern sectors from the volcano's active vent.
During 2026, MAGMA Indonesia has logged 4,592 volcanic eruptions across Indonesia. Mount Semeru (East Java) recorded the most eruptions at 1,789 events, while Mount Ili Lewotolok has erupted 119 times this year.
(Read: List of Provinces Hit by Floods and Landslides in Early 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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