Alert! Mount Semeru Erupted Again Early This Morning (Tuesday, 26 May 2026)
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Mount Semeru in East Java erupted again on Tuesday (26/5/2026) at 01:05 WIB. Over the past week, Mount Semeru has erupted 6 times.
According to eruption data from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached 600 meters above the summit (4276 meters above sea level).
The ash column appeared white to grey with thick intensity, drifting westward. This eruption was recorded on seismographs with maximum amplitude 21 mm and duration of 128 seconds.
(Read: 175 Disaster Events Recorded in Indonesia Early 2026, Floods Most Frequent)
Per MAGMA Indonesia volcanic activity reports, Mount Semeru is currently at Activity Level III (Alert). Seismic monitoring on 26 May 2026 18:00-23:59 WIB recorded 16 eruption earthquakes (12-22 mm amplitude, 96-154 second duration) and 2 degassing earthquakes (3-7 mm amplitude, 41-51 second duration).
PVMBG warns all activities are prohibited in the southeast sector along Besuk Kobokan, within 13 km of the summit. Outside this zone, no activities are allowed within 500 m of river banks along Besuk Kobokan, as pyroclastic flows and lahar may reach up to 17 km from the peak.
For 2026, MAGMA Indonesia has logged 2155 volcanic eruptions nationwide. Mount Semeru (East Java) recorded the highest activity with 1082 eruptions.
(Read: Common Illnesses Among Sumatra Flood Victims as of 5 December 2025)
"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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