What happened at Aliso Canyon in 2015?
Posted on Sep 18, 2025 / Travel
In October 2015, a massive methane leak began at the Aliso Canyon gas storage facility near Porter Ranch, California. The leak released over 97,000 metric tons of methane, making it the largest such release in U.S. history. :contentReference[oaicite:1]{index=1} It forced thousands of residents to evacuate due to health concerns and the strong odor of natural gas. The leak was finally sealed in February 2016 after months of efforts.
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