Images showed cars and structures that had fallen 20 meters off the newly formed cliff, while many other homes remain perched perilously on the cliff edge.
Thousands are displaced and at least 21 people are dead after flooding in South Korea.
A dozen homes in the southern California community were evacuated after the ground beneath them shifted, putting them at risk of a collision course into a nearby canyon.
A major landslide continues to threaten more homes in a Los Angeles County town after 12 were destroyed when the hillside gave way and began sliding into the canyon below on Saturday.
Two homes in Utah slid off a cliff following a landslide and two other homes on either side of the properties were evacuated.
This makes federal funding available to affected individuals in Merced, Sacramento and Santa Cruz counties and includes assistance for temporary housing, recovery, repairs and property loss that happened as a result of the recent series of winter storms in the state.