Nearly 20 homes are in danger of sliding off a cliff in Washington State.
Homeowner Brett Holmes said he woke up in his home on Whidbey Island, north of Seattle, around 4 a.m. yesterday to what sounded like a thunderstorm.
He looked out his window, and 20 huge trees were gone.
One house slid right into the ocean, but everyone got out safely.
The neighborhood sits on a fault line and there's been a lot of rain this year.
MORE from HLN affiliate KING: Some said it 'sounded like a sonic boom'