Mount Semeru Erupted Early Tuesday, Activity Status Raised to Alert Level
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Mount Semeru in East Java erupted again on Tuesday (06/10/2026) at 02:03 WIB. It has erupted 3 times in the past week.
According to PVMBG eruption data via MAGMA Indonesia app, visual eruption was not observed. This eruption registered on seismograph with max 23mm amplitude and 142 second duration.
(Read: Despite Rainfall, Jakarta Air Quality Remains Poor)
As per MAGMA Indonesia volcanic activity report, Mount Semeru is set at Level III (Alert). Seismic monitoring on 6 Oct 2026 18:00-23:59 WIB recorded 30 eruption earthquakes (10-23mm amplitude, 66-135 sec duration).
Additionally: 3 collapse earthquakes (2-4mm, 32-70 sec), 5 emission earthquakes (2-7mm, 36-57 sec).
PVMBG prohibits all activities in the southeast sector along Besuk Kobokan within 13 km of the summit. Outside this zone, no activities are allowed within 500m of river banks along Besuk Kobokan; pyroclastic flows and lahars may reach 17 km from the peak.
In 2026, MAGMA Indonesia recorded 4,946 volcanic eruptions nationwide. Mount Semeru accounts for the highest count with 1,922 eruptions.
(Read: Indonesia Air Quality Showed Slight Improvement In 2021)
"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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