Warning! Mount Semeru Erupted Again Tonight (Friday, June 19 2026)
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Mount Semeru in East Java erupted again at 00:44 WIB on Friday (19/6/2026). Over the past week, Mount Semeru has erupted 47 times.
According to eruption data from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached approximately 700 meters above the crater, or 4376 meters above sea level.
The ash column appeared white to grey with moderate intensity, drifting southwest. This eruption was still ongoing at the time this report was published.
(Read also: West Sumatra Floods & Landslides Claimed 200 Lives: Full Distribution (4 December 2025))
Per MAGMA Indonesia volcanic activity reports, Mount Semeru is currently set at Alert Level III (Standby). Seismic monitoring on June 19 2026 between 18:00-23:59 WIB recorded 11 eruption earthquakes with 10-22 mm amplitude and 88-166 second duration.
Additionally, 3 rockfall earthquakes (2-5 mm amplitude, 59-103 sec duration) and 4 emission tremors (4-8 mm amplitude, 48-72 sec duration) were detected.
PVMBG prohibits all activities in the southeast sector along the Besuk Kobokan valley within 13 km of the summit. Outside this zone, all activity is also banned within 500 meters of river banks along Besuk Kobokan, as hot pyroclastic surges and lahar flows may reach up to 17 km from the crater.
For the 2026 year to date, MAGMA Indonesia has logged 2793 volcanic eruptions across Indonesia. Mount Semeru in East Java accounts for the highest total with 1298 recorded eruptions.
(Read also: Fatalities Distribution from Aceh Floods & Landslides (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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