Alert! Mount Semeru Erupts Again Tonight (Wednesday, 5 August 2026)
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Mount Semeru in East Java erupted again on Wednesday (5/8/2026 at 19:52 WIB. Over the past week, Mount Semeru has erupted 23 times.
According to eruption information from the Centre for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the eruption visual was not observed. Mount Semeru eruption was still ongoing when this report was published.
(Read: After Earlier Surge, Number of Natural Disaster Events in Indonesia Dropped in 2024)
Per MAGMA Indonesia volcanic activity report, Mount Semeru activity status is set at Level III (Alert). Seismic monitoring on 5 August 2026 between 12:00-18:00 WIB recorded 20 eruption earthquakes with 10-22 mm amplitude and 62-128 second duration.
Additionally, 2 collapse earthquakes (2-3 mm amplitude, 45-49 second duration) and 5 emission earthquakes (3-6 mm amplitude, 40-43 second duration) were detected.
PVMBG urges all activities are prohibited in the southeast sector along Besuk Kobokan within 13 km from the summit. Beyond this range, public must avoid activity within 500 meters of Besuk Kobokan river banks, as pyroclastic surge and lahar flow hazards may reach up to 17 km from the peak.
During 2026, MAGMA Indonesia recorded 3,742 volcanic eruptions across Indonesia. East Java's Mount Semeru recorded the highest eruptions count at 1,535 events.
(Read: Count of Affected & Displaced Victims from Natural Disasters in Indonesia 2015-2024)
"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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