Warning! Mount Semeru Erupts Again Tonight (Wednesday, 29 April 2026)
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Mount Semeru in East Java erupted again on Wednesday (29/4/2026) at 21:42 WIB. Over the past week, Mount Semeru has erupted 26 times.
Based on 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 metres above the peak, or None metres above sea level.
No visual eruption was observed. The eruption was registered on seismographs with maximum amplitude 22 mm and duration 114 seconds.
(Read: 2 Thousand Natural Disasters Occurred In Indonesia During 2024, Floods Dominated)
According to MAGMA Indonesia volcanic activity reports, Mount Semeru is currently set at Activity Level III (Alert). Seismic monitoring between 12:00-18:00 WIB on 29 April 2026 recorded 15 eruption earthquakes with amplitude 12-22 mm and duration 69-108 seconds.
Additionally, 6 explosion earthquakes (4-7 mm amplitude, 28-90 sec duration) and 4 harmonic tremor events (6-7 mm amplitude, 57-143 sec duration) were detected.
PVMBG prohibits all activity in the southeast sector along Besuk Kobokan, within 13 km of the summit eruption centre. Outside this zone, residents must avoid activity within 500 metres of river banks along Besuk Kobokan, as these areas are at risk from pyroclastic surges and lahar flows reaching up to 17 km from the peak.
For the year 2026 up to this date, MAGMA Indonesia has logged 1,730 volcanic eruptions across Indonesia. Mount Semeru alone accounts for 896 of these events, the highest count nationwide.
(Read: Number of Heavily Damaged Houses Due To Natural Disasters In Indonesia 2015-2024)
"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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