Mount Semeru Erupted Early Saturday, Status Set to Alert
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Mount Semeru in East Java erupted again on Saturday (13/06/2026) at 04:44 WIB. Over the past week, Mount Semeru has erupted 52 times.
According to eruption data from the Centre for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the eruption was not visually observed. It was recorded on seismographs with maximum amplitude 22 mm and duration 136 seconds.
(Read: West Kalimantan Recorded Highest CO2 Emissions From Forest Fires Up To July 2023)
Per MAGMA Indonesia volcanic activity reports, Mount Semeru activity is at Level III (Alert). Seismic monitoring on 13 June 2026 between 18:00 - 23:59 WIB registered 10 eruption earthquakes with amplitude 15-22 mm, duration 93-190 seconds.
Additionally: 1 collapse earthquake (5 mm amplitude, 55 sec duration), and 5 emission tremors (2-3 mm amplitude, 43-51 sec duration).
PVMBG prohibits all activities in the southeast sector along Besuk Kobokan within 13 km of the summit. Outside this zone, no activity is permitted within 500 m of river banks along Besuk Kobokan, as pyroclastic surges and lahar flows may reach up to 17 km from the peak.
During 2026, MAGMA Indonesia logged 2,596 volcanic eruptions nationwide. Mount Semeru recorded the highest count at 1,241 eruptions.
(Read: Floods And Forest Fires: Most Frequent Disasters In Indonesia During 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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