Alert! Mount Semeru Erupts Again Tonight (Monday, April 27, 2026)
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Mount Semeru in East Java erupted again on Monday (April 27, 2026) at 7:15 PM WIB. In the past week, Mount Semeru has erupted 5 times.
Based on 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 approximately 300 meters above the peak or 3,976 meters above sea level.
The observed ash column is white to gray in color with moderate intensity towards the west. The eruption of Mount Semeru is still ongoing when this report was made.
(Read: Number of Moderately Damaged Houses Due to Natural Disasters in Indonesia 2015-2024)
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 12:00 PM to 6:00 PM WIB showed 16 eruption/explosion earthquakes with amplitudes of 10-22 millimeters and durations of 79-148 seconds.
Then, 2 emission earthquakes with amplitudes of 4-5 millimeters and durations of 65-75 seconds, as well as 1 harmonic earthquake with an amplitude of 2 millimeters and a duration of 666 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 hot cloud expansion and lava flows up to 17 kilometers from the peak.
Throughout 2026, MAGMA Indonesia has recorded 1,697 volcanic eruptions/explosions across Indonesia. Mount Semeru in East Java has the most eruptions with 875 events.
(Read: 2022 Low-Cost Apartment Recipients, Mostly Natural Disaster Victims)
"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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