Alert! Mount Semeru Erupted Again This Morning (Tuesday, 19 May 2026)
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Mount Semeru in East Java erupted again on Tuesday (19/5/2026) at 07.06 WIB. Over the past week, Mount Semeru has erupted 5 times.
According to eruption data from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the observed ash column reached approximately 1,000 meters above the crater peak (4,676 meters above sea level).
The ash column appeared white to grey, with thick density drifting southeast and south. This eruption was recorded on seismographs with maximum 22 mm amplitude and 140 seconds duration.
(Read: Volcanic Eruption Trends Over Recent Years)
Per MAGMA Indonesia volcanic activity reports, Mount Semeru is currently at Activity Level III (Alert Status). Seismic monitoring between 00.00–06.00 WIB on 19 May 2026 recorded 13 eruption earthquakes with 10–22 mm amplitude and 75–181 second duration.
Additionally, 1 rockfall earthquake (2 mm amplitude, 123 seconds) and 4 degassing earthquakes (2–8 mm amplitude, 50–81 seconds) were detected.
PVMBG prohibits all activities in the southeast sector along the Besuk Kobokan area within 13 km of the summit. Outside this zone, public activities are also forbidden within 500 meters of river banks along Besuk Kobokan, as pyroclastic surges and lahar flows may reach up to 17 km from the crater.
For the year 2026 up to this date, MAGMA Indonesia has logged 2,048 volcanic eruptions nationwide. Mount Semeru in East Java recorded the highest activity with 1,034 eruptions.
(Read: Indonesia Has The Highest Number Of Active Volcanoes Worldwide)
"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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