Mount Semeru Erupts Again Tonight (Tuesday, September 9, 2025)
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Mount Semeru in East Java erupted again on Tuesday (9/9/2025) at 00:52 WIB. In the last week, Mount Semeru has erupted 10 times.
Reporting eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the observed ash column reached None meters above the peak (None meters above sea level).
Visual eruption was not observed. The eruption of Mount Semeru was still ongoing when this report was made.
(Read: 2 Thousand Natural Disasters in Indonesia in 2024, Floods Dominate)
According to MAGMA Indonesia''s volcanic activity report, Mount Semeru''s activity level is at Level II (Alert). Seismic observations on September 9, 2025, from 00:00-23:59 WIB showed 54 eruption earthquakes with amplitudes of 12-22 millimeters and earthquake durations of 56-189 seconds.
Furthermore, there were 5 rockfall earthquakes with amplitudes of 3-5 mm and durations of 41-68 seconds, and 14 emission earthquakes with amplitudes of 3-9 millimeters and durations of 36-65 seconds.
PVMBG advises against any activity in the southeast sector along Besuk Kobokan, as far as 8 kilometers from the peak (eruption center). Beyond this distance, the public should not engage in activities within 500 meters of the riverbanks along Besuk Kobokan, as there is a potential for expansion of hot clouds and lava flows up to 13 kilometers from the peak.
Throughout 2025, MAGMA Indonesia has recorded 6,017 volcanic eruptions across Indonesia. Mount Semeru in East Java has had the most eruptions with 2,412 occurrences.
(Read: These Are the Impacts of Damage from Natural Disasters in January-March 2023)
"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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