Mount Semeru Erupted Again This Afternoon, Volcanic Ash Height Reaches 600 Meters Above the Peak
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Mount Semeru in East Java erupted again on Tuesday (13/10/2026) at 13.11 WIB. Over the past week, Mount Semeru has erupted 22 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 peak (4,276 meters above sea level).
The ash column appeared white to grey with thick density, drifting southwest. This eruption was recorded on seismographs with maximum amplitude 15 millimeters and 88 seconds duration.
(Read: Indonesia Natural Disaster Fatality Count Surged In 2024)
Per MAGMA Indonesia volcano activity report, Mount Semeru remains at Alert Level III. Seismic monitoring on 13 October 2026 06.00-12.00 WIB recorded 31 eruption earthquakes with 10-23 mm amplitude and 62-168 second duration.
Additionally, 5 rockfall earthquakes (2-13 mm amplitude, 40-120 sec duration) and 2 emission earthquakes (6-7 mm amplitude, 44-46 sec duration) were detected.
PVMBG prohibits all activities in the southeast sector along Besuk Kobokan within 13 km of the peak. Outside this zone, public are warned not to operate within 500 meters of river banks along Besuk Kobokan, as pyroclastic surges and lahar flows may reach up to 17 km from the peak.
During 2026, MAGMA Indonesia has logged 5,094 volcanic eruptions nationwide. East Java's Mount Semeru recorded the highest activity with 1,980 eruptions.
(Read: Hundreds of Natural Disasters Recorded by Early April 2024, Floods Most Frequent)
"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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