Alert! Mount Semeru Erupted Again This Morning (Friday, 7 August 2026)
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Mount Semeru in East Java erupted again on Friday (7/8/2026) at 05:22 WIB. Over the past week, Mount Semeru has erupted 37 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 700 meters above the crater peak (4376 meters above sea level).
The ash column appeared white to grey with moderate intensity, drifting southwards. Mount Semeru eruption was still ongoing when this report was published.
(Read: Volcanic Eruption Trends in Recent Years)
Per MAGMA Indonesia volcanic activity reports, Mount Semeru is currently at Activity Level III (Alert Status). Seismic monitoring on 7 August 2026 between 18:00-23:59 WIB recorded 30 eruption earthquakes with amplitude 11-22 mm, duration 56-153 seconds.
Additionally: 4 rockfall earthquakes (amplitude 2-4 mm, 45-71 sec duration), and 1 harmonic tremor (7 mm amplitude, 61 sec duration).
PVMBG prohibits all activities in the southeast sector along Besuk Kobokan up to 13 km from the crater. Outside this zone, public activities are also forbidden within 500 meters along Besuk Kobokan riverbanks, as hot cloud surges and lahar flows may reach up to 17 km from the peak.
During 2026, MAGMA Indonesia registered 3774 volcanic eruptions nationwide. East Java's Mount Semeru recorded the highest activity with 1549 eruptions.
(Read: Indonesia Ranks First Globally For Most Active Volcanoes)
"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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