Unstable Lava Rubble on Semeru – Near-Continuous Rockfalls & Ash Bursts (Dec 2, 2025)
Автор: afarTV
Загружено: 2025-12-01
Просмотров: 14858
his video, filmed on December 2, 2025, shows just how unstable the lava rubble and loose volcanic material on the slopes of Mount Semeru has become following the major eruptive activity in late November.
At the center of the footage is a choke point where loose blocks, hot debris, and unstable lava fragments are collapsing almost continuously, creating a chain reaction of rockfalls that sweep down the channel like a slow-motion avalanche. Each collapse sends up bursts of ash that closely resemble small-scale pyroclastic flows, driven by hot, pulverized material cascading down the slope.
The persistent instability highlights ongoing volcanic hazards at Semeru, including:
• Frequent rockfalls and collapses of fresh and unstable deposits
• Ash emissions triggered by avalanching debris
• Potential for larger pyroclastic density currents if a major structural failure occurs
• Continued danger along river valleys and steep drainages, especially Besuk Kobokan
While activity has shifted since the major eruption, the volcano remains highly dynamic. Authorities continue to enforce the 8 km exclusion zone, advising residents and visitors to stay clear of steep channels where collapses like these can travel rapidly.
This video is shared for education, scientific observation, and hazard awareness, showing real-time surface changes on an active volcano.
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