Alert! Mount Semeru Erupts Again This Afternoon (Tuesday, 26 May 2026)
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Mount Semeru in East Java erupted again on Tuesday (26/5/2026) at 16:01 WIB. Over the past week, Mount Semeru has erupted 13 times.
According to eruption data from the Centre for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the eruption plume was not visually observed. Semeru's eruption was still ongoing when this report was published.
(Read: 4.1 Magnitude Earthquake Strikes Pahala, Hawaii)
Per MAGMA Indonesia volcanic activity reports, Mount Semeru is set at Activity Level III (Alert). Seismic monitoring on 26 May 2026 between 06:00–12:00 WIB recorded 12 eruption earthquakes (15–22 mm amplitude, 87–162 second duration), plus 3 emission earthquakes (2–6 mm amplitude, 38–99 second duration).
PVMBG prohibits all activities in the southeast sector along the Besuk Kobokan valley within 13 km of the summit. Beyond this zone, residents must also avoid a 500 metre river buffer zone along Besuk Kobokan: this area is at risk of pyroclastic surges and lahars reaching up to 17 km from the crater.
For 2026 up to this date, MAGMA Indonesia has logged 2,168 volcanic eruptions across Indonesia. East Java's Mount Semeru is the most active, recording 1,089 eruptions.
(Read: 4.8 Magnitude Earthquake Strikes 219 km East of Levuka)
"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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