Alert! Mount Semeru Erupts Again This Afternoon (Wednesday, 03 June 2026)
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Mount Semeru in East Java erupted again on Wednesday (3/6/2026) at 11.40 WIB. Over the past week, Mount Semeru has erupted 25 times.
According to eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the eruption visual was not observed. Mount Semeru eruption was still ongoing when this report was published.
(Read: Number of Natural Disaster Casualties in Indonesia up to 8 July 2025)
Based on MAGMA Indonesia volcanic activity report, Mount Semeru activity status is set at Level III (Alert). Seismic monitoring on 3 June 2026 between 00.00-06.00 WIB recorded 18 eruption earthquakes with 22 mm amplitude and 109-143 seconds duration.
Additionally, 1 rockfall earthquake (3 mm amplitude, 82 seconds duration) and 2 emission earthquakes (4-6 mm amplitude, 38-53 seconds duration) were detected.
PVMBG urges all public activities are prohibited in the southeast sector along Besuk Kobokan up to 13 km from the summit. Outside this zone, people must avoid activity within 500 m from river banks along Besuk Kobokan, as this area is at risk of pyroclastic surges and lahar flows reaching up to 17 km from the crater.
During 2026, MAGMA Indonesia registered 2,306 volcanic eruptions across Indonesia. East Java's Mount Semeru recorded the highest activity with 1,158 eruptions.
(Read: Natural Disasters Damaged 220 Thousand Buildings in Indonesia in 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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