Alert! Mount Semeru Erupts Again Tonight (Thursday, 06 August 2026)
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Mount Semeru in East Java erupted again on Thursday (6/8/2026) at 18:28 WIB. Over the past week, Mount Semeru has erupted 33 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 approximately 900 meters above the peak, or 4,576 meters above sea level.
The ash column appeared white to grey with moderate intensity, drifting southwest. Semeru's eruption was still ongoing at the time this report was published.
(Read: 5.3 Magnitude Earthquake Strikes 17 Km West of Pasuquin,)
Per MAGMA Indonesia volcanic activity reports, Mount Semeru is currently set at Alert Level III (Standby). Seismic monitoring on 06 August 2026 between 12:00–18:00 WIB recorded 19 eruption earthquakes with 10–21 mm amplitude and 59–109 second duration.
Additionally, 6 rockfall earthquakes (2–3 mm amplitude, 38–54 second duration) and 8 emission tremors (3–5 mm amplitude, 30–54 second duration) were detected.
PVMBG has prohibited all activities in the southeast sector along Besuk Kobokan within 13 km of the summit. Outside this zone, public activity is also banned within 500 meters of river banks along Besuk Kobokan, as pyroclastic surges and lahar flows may reach up to 17 km from the peak.
For 2026 up to this date, MAGMA Indonesia has logged 3,766 volcanic eruptions across Indonesia. East Java's Mount Semeru recorded the highest activity with 1,545 eruptions.
(Read: Five Latest Earthquakes Recorded by BMKG (Saturday, 23 May 2026 19:40:26 WIB))
"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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