Mount Semeru Erupted Again This Afternoon (Friday, 16 October 2026)
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Mount Semeru in East Java erupted again on Friday (16/10/2026) at 17:51 WIB. Over the past week, Mount Semeru has erupted 39 times.
According to eruption data from the Centre for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached approximately 600 meters above the crater peak, or 4276 meters above sea level.
The ash column appeared white to grey, thick, and drifted westward. This eruption was recorded on seismographs with a maximum amplitude of 25 mm and duration of 107 seconds.
(Read: Hotspot Update: 6 Priority Provinces for Forest Fire Handling (21 September 2026))
Per MAGMA Indonesia volcanic activity reports, Mount Semeru remains at Alert Level III. Seismic monitoring between 12:00–18:00 WIB on 16 October 2026 recorded 20 eruption earthquakes (10–25 mm amplitude, 56–167 second duration), 4 rockfall earthquakes (2–8 mm, 43–118 seconds), and 8 gas emission earthquakes (4–8 mm, 46–65 seconds).
PVMBG prohibits all activity in the southeast sector along the Besuk Kobokan valley within 13 km of the summit. Outside this zone, no activity is permitted within 500m of Besuk Kobokan river banks, as pyroclastic flows and lahar may reach up to 17 km from the peak.
Throughout 2026, MAGMA Indonesia has logged 5134 volcanic eruptions nationwide. Mount Semeru is the most active with 1997 recorded eruptions this year.
(Read: Top 10 Indonesian Provinces by Forest Fire Emissions (Early October 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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