Authorities in Southern California are bracing for the possibility that a volatile chemical tank could either rupture or explode, as emergency crews worked through the night on what officials described as an unprecedented hazmat crisis that has forced an estimated 40,

Nearly 50,000 residents are under evacuation orders in Southern California. It's because authorities are worried a tank containing toxic chemicals could explode if it overheats.

Thousands of residents in California’s Orange County were evacuated after firefighters warned a leaking tank containing toxic chemicals could explode as temperatures inside continued to rise

Evacuation orders were issued to 40,000 Orange County residents. A fire official said a major spill or an explosion were the only expected outcomes.

Authorities issued evacuation orders for the surrounding area impacting around 40,000 people. Over a dozen schools have temporarily closed, and those adjacent to the evacuation area canceled outdoor activities "out of an abundance of caution," the Garden Grove Unified School District said.

Almost a year-long investigation into the massive explosion in Northern California, which killed seven people, the Yolo County District Attorney announced on April 10 that it had charged eight people, one of whom was a lieutenant in the county's sheriff's ...

The tank at GKN Aerospace is estimated to contain 7,000 gallons of methyl methacrylate, a volatile chemical used to produce plastics.