Mount Semeru Erupted Again Early This Morning (Tuesday, June 2, 2026)
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Mount Semeru in East Java erupted again on Tuesday (2/6/2026) at 03:45 WIB. Over the past week, Mount Semeru has erupted 11 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 approximately 800 meters above the crater peak (4,476 meters above sea level).
The ash column appeared white to grey, thick in density, drifting towards the southwest. This eruption was recorded on seismographs with a maximum amplitude of 22 millimeters and lasted for 167 seconds.
Per MAGMA Indonesia volcanic activity reports, Mount Semeru remains at Alert Level III. Seismic monitoring between 18:00 - 23:59 WIB on June 2, 2026 recorded 18 eruption earthquakes with 12-22 mm amplitude and 67-136 second duration.
Additionally, 3 emission earthquakes (3-7 mm amplitude, 21-51 seconds) and 1 harmonic tremor (9 mm amplitude, 180 seconds) were detected.
PVMBG prohibits all activities in the southeast sector along Besuk Kobokan within 13 km of the summit. Outside this zone, public activity is banned within 500 meters of river banks along Besuk Kobokan, as hot cloud surges and lahar flows may reach up to 17 km from the peak.
During 2026, MAGMA Indonesia recorded 2,276 volcanic eruptions across Indonesia. East Java's Mount Semeru recorded the highest activity with 1,144 eruptions.
"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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