Mount Semeru Erupts Again Tonight (Friday, 7 August 2026)
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Mount Semeru in East Java erupted again on Friday (7/8/2026) at 18:20 WIB. Over the past week, Mount Semeru has erupted 43 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 300 meters above the summit (3,976 meters above sea level).
The ash column appeared white to grey with moderate intensity, drifting westward. Semeru's eruption was ongoing at the time this report was published.
(Read: Volcanic Eruption Trends Over Recent Years)
Per MAGMA Indonesia volcanic activity reports, Mount Semeru is currently at Alert Level III (Standby). Seismic monitoring on 7 August 2026 between 12:00–18:00 WIB recorded 24 eruption earthquakes with 10–22 mm amplitude and 63–133 second duration.
Additionally, 6 collapse earthquakes (2–3 mm amplitude, 44–82 sec duration) and 7 emission earthquakes (2–5 mm amplitude, 40–54 sec duration) were detected.
PVMBG prohibits all activities in the southeast sector along Besuk Kobokan up to 13 km from the summit. Beyond this zone, public activity is also forbidden within 500 meters of Besuk Kobokan river banks, as pyroclastic surges and lahar flows may reach up to 17 km from the peak.
For 2026 to date, MAGMA Indonesia has logged 3,792 volcanic eruptions across Indonesia. East Java's Mount Semeru recorded the highest activity with 1,555 eruptions.
(Read: Indonesia Has The Most Active Volcanoes In The World)
"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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