Mount Semeru Erupted Again This Morning (Friday, 15 May 2026)
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Mount Semeru in East Java erupted again on Friday (15/5/2026) at 05:17 WIB. Over the past week, Mount Semeru has erupted 41 times.
According to eruption data from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the eruption plume was not visually observed. Mount Semeru's eruption was ongoing when this report was published.
(Read: Fatalities Distribution from Floods & Landslides in Aceh (9 December 2025))
Per MAGMA Indonesia volcanic activity reports, Mount Semeru is set at Activity Level III (Alert). Seismic monitoring on 15 May 2026 between 18:00-23:59 WIB recorded 11 eruption earthquakes with 12-22 mm amplitude and 67-115 second duration.
Additionally, 4 emission earthquakes (4-8 mm amplitude, 34-55 second duration) and 1 harmonic tremor (11 mm amplitude, 43 second duration) were detected.
PVMBG prohibits all activities in the southeast sector along Besuk Kobokan within 13 km of the summit. Outside this zone, public activity is forbidden within 500 m of Besuk Kobokan river banks -- this area faces risk from pyroclastic surges and lahar flows reaching up to 17 km from the crater.
For 2026, MAGMA Indonesia has logged 1,981 volcanic eruptions nationwide. Mount Semeru recorded the highest count at 1,015 eruptions.
(Read: Fatalities Distribution from Floods & Landslides in North Sumatra (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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