Operation Hot Rock

Operation Hot Rock
Part of List of Mount Etna eruptions
Operational scopeLava-flow mitigation / disaster relief
Location
37°45.3′N 14°59.7′E / 37.7550°N 14.9950°E / 37.7550; 14.9950 (Mount Etna, Sicily)
ObjectiveDivert or slow lava flows threatening Zafferana Etnea during the 1991–1993 Mount Etna eruption
DateApril–May 1992
Executed byUnited States Marine Corps (HMM-266)
United States Navy (HC-4)
Italian Civil Protection Department and Italian armed forces
OutcomeLava flow was diverted; Zafferana Etnea spared major damage
CasualtiesNone
Mount Etna
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Operation Hot Rock (April–May 1992) was a joint U.S.–Italian humanitarian mission in which heavy-lift helicopters airlifted large concrete blocks to help divert advancing lava from Mount Etna and protect the town of Zafferana Etnea in Sicily.