Alert! Mount Semeru Erupts Again This Morning (Monday, April 27, 2026)
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Mount Semeru in East Java erupted again on Monday (April 27, 2026) at 09:22 WIB. In the past week, Mount Semeru has erupted 3 times.
Quoting eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the observed ash column is around 500 meters above the peak or 4,176 meters above sea level.
The observed ash column is white to gray in color with thick intensity towards the west. The eruption was recorded on the seismograph with a maximum amplitude of 22 millimeters and a duration of 120 seconds.
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According to the MAGMA Indonesia volcanic activity report, the activity level of Mount Semeru is at Level III (Alert). Earthquake observations on April 27, 2026 from 00:00-06:00 WIB showed 28 eruption/explosion earthquakes with amplitudes of 13-22 millimeters and durations of 87-126 seconds. Then, 3 emission earthquakes with amplitudes of 3-7 millimeters and durations of 43-47 seconds.
PVMBG advises against any activities in the southeast sector along Besuk Kobokan, up to 13 kilometers from the peak (eruption center). Outside this distance, residents should not carry out activities within 500 meters of the riverbank along Besuk Kobokan due to the potential for being affected by the expansion of hot clouds and lahar flows up to 17 kilometers from the peak.
Throughout 2026, MAGMA Indonesia has recorded 1,691 volcanic eruptions across Indonesia. Mount Semeru in East Java has the most eruptions with 873 occurrences.
"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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