Mandy Moore is grieving the loss of her neighborhood and her home, which was ravaged by the still-active Eaton Fire burning in Los Angeles County.

The former "This Is Us" star returned to find the main part of her Altadena, California, home "miraculously" still standing, though not livable, she said in an Instagram post.

This Is Us' star Mandy Moore has revealed her heartbreak after her Altadena neighbourhood has been burned down in the LA fires.

The Eaton Fire burning through the hillsides and mountains above Pasadena is now approaching the Mount Wilson Observatory, with potential implications for both the historic structures and emergency communications during the ongoing wildfire siege devastating Los Angeles.

Flames from the massive Eaton Fire are approaching the summit of California's Mount Wilson. The mountaintop is home to communication towers and an historic observatory.

The Eaton fire, which officials said had slowed as of Thursday morning, Jan. 9, has spread to Mt. Wilson, the Los Angeles County Fire Department said. Flames had reached the base of Mt. Wilson late Thursday morning,