Warning! Mount Semeru Erupts Again This Morning (Sunday, April 26, 2026)
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Mount Semeru in East Java erupted again on Sunday (April 26, 2026) at 08:12 WIB. In the past week, Mount Semeru has erupted 35 times.
Quoting eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height reached 500 meters above the peak (4,176 meters above sea level).
The observed ash column was white to gray in color with thick intensity towards the southwest. The eruption was recorded on the seismograph with a maximum amplitude of 22 millimeters and a duration of 125 seconds.
(Read: Two Months of Floods in Sumatra: 1,204 People Killed and 140 Missing (Tuesday, January 27, 2026))
According to the MAGMA Indonesia volcano activity report, Mount Semeru's activity level is at Level III (Alert). Earthquake observations on April 26, 2026 from 00:00 to 06:00 WIB showed 20 eruption/explosion earthquakes with amplitudes of 10-22 millimeters and durations of 60-189 seconds.
Additionally, there was 1 emission earthquake with an amplitude of 2 millimeters and duration of 82 seconds, as well as 1 harmonic earthquake with an amplitude of 10 millimeters and duration of 528 seconds.
PVMBG advises against any activities in the southeast sector along the Besuk Kobokan, within 13 kilometers of 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 lahar flows up to 17 kilometers from the peak.
In 2026, MAGMA Indonesia has recorded 1,671 volcanic eruptions across Indonesia. Mount Semeru in East Java has the most eruptions with 867 events.
"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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