A gas explosion in the Ashland neighbourhood of Hayward, California, on 11 December 2025 injured six people and damaged multiple homes. The blast occurred shortly after crews attempted to manage a ruptured underground gas line, raising questions over why residents were not evacuated despite early warning of the leak. Investigators are reviewing emergency protocols to determine whether the response met safety standards.
The rupture, reportedly caused by a third-party construction crew working on a road project, was reported to Pacific Gas and Electric (PG&E) at approximately 7:35 a.m. Crews worked to isolate the damaged line and reportedly halted the flow of gas around 9:25 a.m. The explosion occurred at 9:38 a.m., destroying one home and affecting neighbouring properties. Six people were taken to hospital with injuries described as non-life-threatening, according to ABC7 News.
