Mount Semeru Erupts Again Tonight (Saturday, 16 May 2026)
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Mount Semeru in East Java erupted again on Saturday (16/5/2026) at 19:04 WIB. 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 app, the observed ash column reached approximately 1,000 meters above the summit (4,676 meters above sea level).
The ash column appeared white to grey, thick, drifting southwest. This eruption registered on seismographs with maximum 22 mm amplitude and 316 seconds duration.
(Read: Air Quality in Major Indonesian Cities Poor, Far Below WHO Standards)
Per MAGMA Indonesia volcanic activity reports, Mount Semeru status remains at Level III (Alert). Seismic monitoring 16 May 2026 12:00-18:00 WIB recorded 17 eruption earthquakes (10-22 mm amplitude, 60-170 sec duration).
Additionally: 6 degassing earthquakes (5-8 mm amplitude, 38-88 sec) and 1 harmonic tremor (2 mm amplitude, 165 sec).
PVMBG warns: all activities are prohibited in the southeast sector along Besuk Kobokan within 13 km of the summit. Outside this zone, stay 500 m away from Besuk Kobokan river banks – pyroclastic flows and lahars may reach up to 17 km from the peak.
For 2026, MAGMA Indonesia logged 2,000 volcanic eruptions nationwide. Mount Semeru (East Java) recorded the highest activity with 1,021 eruptions.
"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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