Threat of massive chemical tank explosion is 'eliminated', California officials say

California fire officials successfully eliminated the threat of a catastrophic BLEVE explosion from a cracked chemical tank containing thousands of gallons of methyl methacrylate at a Garden Grove aerospace facility. Through overnight operations involving water spraying and temperature management, crews reduced the tank's internal temperature and released built-up pressure, though approximately 16,000 residents remain evacuated under a reduced evacuation zone due to continued spillage risks. What initially threatened 50,000 residents and prompted a state of emergency has been significantly downgraded, though officials emphasize the situation requires ongoing mitigation work.