Mount Semeru Erupted Again This Afternoon (Wednesday, 27 May 2026)
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Mount Semeru in East Java erupted again on Wednesday (27/5/2026) at 11:22 WIB. Over the past week, Mount Semeru has erupted 24 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. This event was recorded on seismographs with maximum amplitude 23 mm and duration 209 seconds.
(Read: 10 Countries with Most Earthquakes 2023: Indonesia Ranks First)
Per MAGMA Indonesia volcanic activity reports, Mount Semeru is currently set at Activity Level III (Alert). Seismic monitoring between 00:00–06:00 WIB on 27 May 2026 registered 16 eruption earthquakes (15–22 mm amplitude, 105–179 second duration).
Additionally 3 emission earthquakes (2–6 mm, 77–94 sec) and 1 harmonic tremor (2 mm, 100 sec) were detected.
PVMBG prohibits all activities in the southeast sector along Besuk Kobokan up to 13 km from the summit. Outside this zone, public activity is also forbidden within 500 m of river banks along Besuk Kobokan, as pyroclastic flows and lahar may reach up to 17 km from the crater.
For 2026 up to this date, MAGMA Indonesia has logged 2,185 volcanic eruptions across Indonesia. East Java's Mount Semeru accounts for the highest number at 1,100 eruptions.
(Read: Indonesia Is The Most Earthquake-Prone Country As Of 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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