Warning! Mount Semeru Erupts Again Tonight (Saturday, April 25, 2026)
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Mount Semeru in East Java erupted again on Saturday (April 25, 2026) at 10:22 PM WIB. In the past week, Mount Semeru has erupted 33 times.
Quoting eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column height is approximately 500 meters above the peak or 4,176 meters above sea level.
The ash column was observed to be 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 157 seconds.
(Read: Five Latest Earthquakes Recorded by BMKG (Wednesday, April 22, 2026 12:17:58 WIB))
According to the MAGMA Indonesia volcano activity report, Mount Semeru's activity level is at Level III (Alert). Seismic observations on April 25, 2026 from 12:00 PM to 6:00 PM WIB showed 13 eruption/explosion earthquakes with amplitudes of 13-22 millimeters and durations of 82-132 seconds. Then, 2 emission earthquakes with amplitudes of 4-5 millimeters and durations of 39-47 seconds.
PVMBG advises against any activities in the southeast sector along Besuk Kobokan, within 13 kilometers of the peak (eruption center). Beyond that distance, residents should not conduct activities within 500 meters of the riverbank along Besuk Kobokan due to the potential for being affected by expanding hot clouds and lahar flows up to 17 kilometers from the peak.
Throughout 2026, MAGMA Indonesia has recorded 1,666 volcanic eruptions across Indonesia. Mount Semeru in East Java has the most eruptions with 865 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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