Fire officials say they have evacuated 46 homes in the area around a landslide in the upscale La Jolla area of San Diego.
One home was destroyed as it sank into the disintegrating hillside and four others were damaged. No one was injured in the slide.
Initially only seven people were evacuated from 20 homes - 10 on the hilltop where a 50-yard-long sinkhole opened up and 10 on the street below.
Homes on a second street farther down the hill are now being vacated.
Forty-two people were inside the homes that were evacuated.
City officials say they don't know how many of those houses will be safe for residents to return to later.