Alert! Mount Semeru Erupted Again This Morning (Thursday, 30 April 2026)
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Mount Semeru in East Java erupted again on Thursday (30/4/2026) at 07.30 WIB. Over the past week, Mount Semeru has erupted 30 times.
According to eruption data from the Centre for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height was recorded as None meters above the summit, or None meters above sea level.
No visual eruption was observed. This eruption was registered on seismographs with maximum amplitude 22 millimetres and duration of 110 seconds.
(Read also: Jakarta Air Quality Ranked 3rd Worst Globally This Morning (Tuesday, 6 June 2023))
Per MAGMA Indonesia volcanic activity reports, Mount Semeru is currently at Activity Level III (Alert Status). Seismic monitoring between 00.00-06.00 WIB on 30 April 2026 recorded 15 eruption earthquakes with amplitude 12-22 mm and duration 77-123 seconds.
Additionally, 1 rockfall earthquake (7 mm amplitude, 65 second duration) and 5 emission tremors (4-6 mm amplitude, 35-49 second duration) were detected.
PVMBG advises against all activities in the southeast sector along Besuk Kobokan within 13 km of the summit eruption centre. Beyond this zone, public activity is prohibited within 500 metres of river banks along Besuk Kobokan, due to risk of pyroclastic surges and lahar flows reaching up to 17 km from the peak.
For the year 2026, MAGMA Indonesia has logged 1,737 volcanic eruptions across Indonesia. East Java's Mount Semeru recorded the highest activity with 900 eruptions.
(Read also: 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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