Mount Semeru Erupts Again This Morning (Saturday, April 25, 2026)
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Mount Semeru in East Java erupted again on Saturday (April 25, 2026) at 07.42 WIB. In the last week, Mount Semeru has erupted 32 times.
Based on eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height reached 600 meters above the peak or 4,276 meters above sea level.
The ash column was observed to be white to gray with thick intensity towards the southwest. The eruption was recorded on the seismograph with a maximum amplitude of 22 millimeters and a duration of 135 seconds.
(Read: Number of Slightly Damaged Houses Due to Natural Disasters in Indonesia 2015-2024)
According to the MAGMA Indonesia volcano activity report, Mount Semeru's activity level is at Level III (Alert). Earthquake observations on April 25, 2026 from 00.00-06.00 WIB showed 23 eruption/explosion earthquakes with amplitudes of 12-22 millimeters and durations of 93-160 seconds.
Then, 2 emission earthquakes with amplitudes of 3-5 millimeters and durations of 29-36 seconds, as well as 1 distant tectonic earthquake with an amplitude of 26 millimeters, s-p 13 seconds, and duration of 65 seconds.
PVMBG advises against any activities in the southeast sector along the Besuk Kobokan, up to 13 kilometers from the peak (eruption center). Beyond that distance, residents are advised not to carry out activities within 500 meters of the riverbank along the Besuk Kobokan due to the potential for being affected by expanding hot clouds and lava flows up to 17 kilometers from the peak.
During 2026, MAGMA Indonesia has recorded 1,662 volcanic eruptions across Indonesia. Mount Semeru in East Java has the most eruptions with 864 events.
(Read: Hundreds of Natural Disasters by Early April 2024, Floods Are the Most Common)
"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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