Warning! Mount Semeru Erupted Again Tonight (Monday, 15 June 2026)
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Mount Semeru in East Java erupted again on Monday (15/6/2026) at 00:55 WIB. Over the past week, Mount Semeru only erupted once.
According to eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached 600 meters above the crater peak, or 4276 meters above sea level.
The ash column was observed white to grey with thick intensity, drifting southwest. This eruption was recorded on seismograph with maximum 22 mm amplitude and 125 second duration.
(Read: West Kalimantan Recorded Worst Air Quality in Indonesia This Morning (Friday, 18 August 2023))
Per MAGMA Indonesia volcanic activity reports, Mount Semeru is currently set at Activity Level III (Alert). Seismic monitoring between 18:00 - 23:59 WIB on 15 June 2026 logged 11 eruption earthquakes with 10-22 mm amplitude and 90-152 second duration.
Additionally, 5 emission earthquakes (3-6 mm amplitude, 60-111 second duration) and 1 distant tectonic earthquake (30 mm amplitude, 31 sec S-P interval, 138 sec duration) were detected.
PVMBG urges all public activity is prohibited in the southeast sector along Besuk Kobokan, within 13 km from the eruption center. Beyond this radius, all activity remains forbidden within 500 meters of river banks along Besuk Kobokan, as this area is at risk of pyroclastic surges and lahar flows reaching up to 17 km from the peak.
As of 2026, MAGMA Indonesia has recorded a total of 2645 volcanic eruptions across the country. Mount Semeru (East Java) recorded the highest eruptive activity with 1252 eruptions.
(Read: Jakarta Recorded 2nd Worst Air Quality Worldwide This Morning (Friday, 17 June 2022))
"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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