Mount Semeru Erupted Again This Morning (Thursday, 24 September 2026)
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Mount Semeru in East Java erupted again on Thursday (24/9/2026) at 07:42 WIB. It has erupted 7 times in the past week.
According to eruption data from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia app, the observed ash column reached approximately 500 meters above the summit, or 4176 meters above sea level.
The ash column was observed white to grey, thick intensity, drifting northeast. This eruption was recorded on seismograph with maximum amplitude 22 mm and 125 second duration.
(Read: 175 Disaster Events Recorded In Indonesia Early 2026, Floods Most Common)
Per MAGMA Indonesia volcanic activity reports, Mount Semeru is currently at Alert Level III (Standby). Seismic monitoring on 24 September 2026 between 00:00–06:00 WIB recorded 28 eruption earthquakes (11–22 mm amplitude, 79–173 second duration).
Additionally, 14 rockfall earthquakes (2–6 mm amplitude, 42–99 second duration) and 1 emission earthquake (7 mm amplitude, 95 second duration) were detected.
PVMBG prohibits all activities in the southeast sector along Besuk Kobokan up to 13 km from the summit. Outside this zone, no activities are allowed within 500 m of river banks along Besuk Kobokan, as pyroclastic flows and lahars may reach up to 17 km from the summit.
Throughout 2026, MAGMA Indonesia has logged 4763 volcanic eruptions across Indonesia. Mount Semeru recorded the highest count at 1844 eruptions.
(Read: Fatalities Distribution From Aceh Floods & Landslides (9 December 2025))
"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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