Warning! Mount Semeru Erupts Again This Morning (Tuesday, April 28, 2026)
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Mount Semeru in East Java erupted again on Tuesday (April 28, 2026) at 07.10 WIB. In the last week, Mount Semeru has erupted 12 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 800 meters above the peak (4,476 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 167 seconds.
(Read: Indonesia Has the Most Active Volcanoes in the World)
According to the MAGMA Indonesia volcano activity report, Mount Semeru's activity level is at Level III (Alert). Earthquake observations on April 28, 2026 from 00.00-06.00 WIB showed 18 eruption/explosion earthquakes with amplitudes of 12-22 millimeters and earthquake durations of 64-96 seconds.
Then, 1 emission earthquake with an amplitude of 6 millimeters and duration of 55 seconds, as well as 4 harmonic earthquakes with amplitudes of 9-13 millimeters and durations of 104-179 seconds.
PVMBG advises against any activities in the southeast sector along the 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 the 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 1,706 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions with 882 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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