Alert! Mount Semeru Erupted Again This Morning (Friday, 19 June 2026)
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Mount Semeru in East Java erupted again on Friday (19/6/2026) at 07.21 WIB. Over the past week, Mount Semeru has erupted 49 times.
According to eruption data from the Centre for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached approximately 1,000 metres above the summit (4,676 metres above sea level).
The ash column appeared white to grey, thick, drifting north and northwest. This eruption was recorded on seismographs with maximum amplitude 22 mm and duration 333 seconds.
(Read: Indicated Forest & Land Fire Area in East Kalimantan up to June 2025)
Per MAGMA Indonesia volcanic activity reports, Mount Semeru is currently at Activity Level III (Alert). Seismic monitoring between 00.00–06.00 WIB on 19 June 2026 recorded 19 eruption earthquakes with amplitude 11–22 mm and duration 62–133 seconds.
Additionally, 1 emission earthquake (6 mm amplitude, 35 sec duration) and 1 distant tectonic earthquake (11 mm amplitude, 17 sec S-P interval, 45 sec duration) were detected.
PVMBG prohibits all activities in the southeast sector along Besuk Kobokan within 13 km of the summit. Outside this zone, people must avoid activity within 500 m of river banks along Besuk Kobokan, as pyroclastic surges and lahar flows may reach up to 17 km from the peak.
Throughout 2026, MAGMA Indonesia has logged 2,799 volcanic eruptions nationwide. Mount Semeru has recorded the highest number with 1,300 eruptions.
(Read: High Forest & Land Fire Occurrences In Concession Areas, Especially Oil Palm Concessions)
"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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