Mount Semeru Erupts Again Tonight, Ash Column Reaches 1,000 Meters Above Summit
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Mount Semeru in East Java erupted again on Tuesday (14/07/2026) at 20:15 WIB. Over the past week, Mount Semeru has erupted 20 times.
According to eruption data from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height reached 1,000 meters above the summit, or 4,676 meters above sea level.
The ash column was observed white to grey, thick in intensity, drifting towards northeast and east. This eruption was recorded on seismograph with maximum amplitude 23 mm and duration of 135 seconds.
(Read: Not Jakarta: This Is The Region With Worst Air Quality In Indonesia (Wednesday, 7 June 2023))
Per MAGMA Indonesia volcanic activity report, Mount Semeru activity status is set at Level III (Alert). Seismic monitoring on 14 July 2026 between 12:00-18:00 WIB recorded 11 eruption earthquakes with amplitude 15-22 mm and duration 62-157 seconds.
Additionally, 1 rockfall earthquake at 15 mm amplitude for 51 seconds, and 2 emission earthquakes at 5-6 mm amplitude for 30-46 seconds were detected.
PVMBG prohibits all activities in the southeast sector along Besuk Kobokan, up to 13 km from the summit eruption center. Outside this zone, public must avoid activity within 500 meters of river banks along Besuk Kobokan, as areas may be hit by pyroclastic flows and lahar up to 17 km from the summit.
During 2026, MAGMA Indonesia has logged 3,182 volcanic eruptions across Indonesia. East Java's Mount Semeru recorded the highest activity with 1,405 eruptions.
(Read: Indonesia Air Quality Showed Slight Improvement In 2021)
"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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