On Friday, a  7.0 magnitude earthquake rocked Anchorage, Alaska largest city violently shaking homes and businesses and knocking out power to some residents.

The quake was located about eight miles (13 kilometers) north of Anchorage and struck at 8:29 am local time (1729 GMT), the US Geological Survey said. The city’s police department said it had caused “major infrastructure damage to Anchorage.”

“Many homes and buildings are damaged. Many roads and bridges are closed. Stay off the roads if you don’t need to drive” the police department said in a statement.

The Anchorage Daily News, reported that the Glenn Highway had closed north of Eagle River because of damage, and an onramp at the interchange of International Airport Road and Minnesota Boulevard collapsed.