Crime & Safety

Gas Explosion Destroys Homes, Injures 6 In East Bay

The explosion happened after a construction crew struck an underground gas line, according to a San Francisco Chronicle report.

Damage is seen at the scene of a gas explosion in Hayward, Calif., Thursday, Dec. 11, 2025.
Damage is seen at the scene of a gas explosion in Hayward, Calif., Thursday, Dec. 11, 2025. (AP Photo/Godofredo A. Vásquez)

HAYWARD, CA — Six people were injured Thursday morning during an explosion in Alameda County.

The explosion happened around 9:38 a.m. in the 800 block of East Lewelling in Hayward, according to an emergency alert that advised people to avoid the area. Six people were hospitalized, with at least three in serious condition.

Construction crews had been digging at a property in the area hours earlier when they struck an underground gas line

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They managed to stop the flow of the gas, but 10 minutes later, the explosion occurred, according to the report.

Dramatic video footage showed a home in the Hayward area sitting under a blue sky when it suddenly exploded, spewing jagged wood and other debris into the air as smoke billowed.
Brittany Maldonado, who lives across the street from the home, was in her bedroom with her husband when she heard the blast.

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Damage is seen after a gas explosion Thursday, Dec. 11, 2025, in Hayward, Calif. (AP Photo/Minh Connors)
Damage is seen at the scene of a gas explosion in Hayward, Calif., Thursday, Dec. 11, 2025. (AP Photo/Godofredo A. Vásquez)

“Boxes fell over and everything shook. We thought someone had just flown off the freeway and their car was in our living room,” she said. “It was like someone had just launched a bomb.”
Then they looked at the Nest doorbell cam footage and saw their neighbor’s home blowing up.

Three structures on two separate lots were severely damaged, said Alameda County Deputy Fire Chief Ryan Nishimoto. Some of the 75 firefighters who responded had to back off momentarily when they felt electric shocks from power lines that had fallen on the site.

Alameda County Sheriff's Office Search and Rescue teams work the scene after a gas explosion Thursday, Dec. 11, 2025, in Hayward, Calif. (AP Photo/Minh Connors)

The National Transportation Safety Board said Thursday it is sending a team to investigate.

The neighborhood of single-level homes with tidy small lawns and some businesses near two freeways had been undergoing construction work for wider sidewalks and bike lanes.

A video obtained by ABC7 shows a house exploding.

Alameda County Police Officers and Search and Rescue access the aftermath at the site of the explosion on the 800 block of East Lewelling Boulevard, Thursday, Dec. 11, 2025, in Hayward, Calif. (AP Photo/Minh Connors)

Pacific Gas & Electric Co. was alerted around 7:35 a.m. that a construction crew — not with the utility — had damaged an underground gas line. Utility workers arrived to isolate the damaged line, but gas was leaking from various locations.

Workers stopped the flow of gas at 9:25 a.m., and the explosion followed shortly afterward.

Gas was flowing for two hours but the explosion happened 10 minutes after the line was shut off, PG&E spokesperson Tamar Sarkissian confirmed. She said it took time to isolate the line and stop the flow of gas.

The doorbell video showed a large excavator being used to dig in front of the home that exploded as a worker stood nearby.

Within moments, an explosion and flames blew out the walls and the roof of the home. People nearby appeared to be dazed for a few seconds, before running toward the home to search for any victims. Several workers lifted a large piece of debris from where it landed near the excavator.

Sirens could be heard in the distance as police arrived at the scene as flames began to spread at the site of the demolished building.

This is a developing story. Please refresh for updates.

The Associated Press contributed to this report.

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