Warning! Mount Semeru Erupted Again This Afternoon (Saturday, 08 August 2026)
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Mount Semeru in East Java erupted again on Saturday (08/08/2026) at 16:45 WIB. Over the past week, Mount Semeru has erupted 51 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 400 meters above the summit, or 4076 meters above sea level.
The ash column appeared white to grey with thick intensity, drifting westward. This eruption was recorded on seismographs with maximum amplitude 21 mm and duration of 110 seconds.
(Read also: Floods & Extreme Weather: Most Common Disasters in Indonesia 2025)
Per MAGMA Indonesia volcano activity reports, Mount Semeru is currently set at Activity Level III (Alert). Seismic monitoring on 8 August 2026 between 06.00-12.00 WIB recorded 26 eruption earthquakes with amplitude 10-22 mm and duration 63-116 seconds.
Additionally, there were 9 rockfall earthquakes (1-10 mm amplitude, 43-84s duration) and 5 gas emission earthquakes (4-8 mm amplitude, 36-48s duration).
PVMBG prohibits all activities in the southeast sector along the Besuk Kobokan area within 13 km of the summit. Outside this radius, public activity is also forbidden within 500 meters of river banks along Besuk Kobokan, as the area faces risk of pyroclastic surges and lahar flows reaching up to 17 km from the volcano peak.
As of 2026, MAGMA Indonesia has logged a total of 3,817 volcanic eruptions nationwide. Mount Semeru in East Java recorded the highest activity with 1,563 eruptions.
(Read also: 175 Disaster Events Recorded in Early 2026, Floods Most Frequent)
"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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