Around 9.15 this morning, a magnitude-6 earthquake was felt across Melbourne, as well as Sydney, Canberra and as far as Tasmania.

The unexpected tremors were at best unsettling, but Twitter was quick to react with videos of damage to buildings – including one on Chapel Street in Windsor.

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It shows bricks strewn across Green Street, having fallen from the top of the building, which appears partially open. Video of the same street just after the earthquake – obtained by Broadsheet – more clearly shows it’s the site of burger joint Betty’s Burgers. The air is visibly hazy, and an onlooker can be heard saying, “Oh, my god!” A powerline also appears to have fallen.

Bec Lutz – owner of retailer Design a Space, across the road – witnessed the bricks begin to fall. “I didn’t know it was an earthquake at first, I thought it was an explosion,” she tells Broadsheet. “The office was shaking, and I opened the door and all I could see were bricks tumbling down. They were falling sort of like a wave. And it was loud, like loud like thunder.”

“Everyone was running away from Chapel Street, and it took a good couple of minutes for the dust to settle,” she adds. “Then all the neighbours ran out; everyone was so worried there would be people in there.”

Shortly after, Betty’s Burgers took to Instagram to address the event.

“The Betty’s Windsor team are all safe, we were fortunate that nobody was in the restaurant at the time,” the post reads. “Thank you to everyone who has reached out after this morning's events, we will keep you updated.”

Betty’s Burgers has also directly confirmed with Broadsheet that no one was injured.

While the scope of the damage is still unknown, you can show your support for the Noosa-born burger chain by visiting any of its Melbourne locations, including its new south-side spot, opening at at 331 Glenhuntly Road, Elsternwick tomorrow.