LAGUNA BEACH, Calif. (AP) -- A landslide sent 18 multimillion-dollar houses crashing down a hill in Southern California early Wednesday as homeowners alarmed by the sound of walls and pipes coming apart ran for their lives in their nightclothes. At least four people suffered minor injuries.
About 1,000 people in 500 other homes in the Blue Bird Canyon area were evacuated as a precaution.
In addition to the 15 to 18 houses destroyed, several homes were damaged and a street was wrecked when the earth gave way around daybreak in the Orange County community about 50 miles southeast of Los Angeles.
''People were running down the hill like a bomb had gone off. I mean literally, they had their bed clothes on,'' said Robert Pompeo, 56, a retiree whose home is about 75 yards from the ridge where the most homes were lost.
Officials said they had no idea what caused the disaster. The landslide followed the second-rainiest season on record in Southern California, but Laguna Beach has been dry since a trace of rainfall nearly a month ago.
Residents began reporting problems around 5 a.m. and the hillside gave way between 6 and 7 a.m.
''The pipes started making funny noises and the toilet sounded like it was about to explode,'' said Carrie Joyce, one of those who fled. ''I could see one house, huge, we call it 'the mausoleum,' 5,000 square feet or more. It had buckled, the retaining wall in the front of it was cracked. It just looked like the whole house was going.''
Jill Lockhart, 35, fled with her sons, ages 2 and 4, after being awakened by the noise. ''You could hear the homes breaking. You could hear the cracking wood,'' she said.
She said a teenage neighbor grabbed one her boys and they clambered down the ridge because the street was buckling and sliding. Lockhart's two-story home was destroyed, she said.
''We had to run for our lives,'' she said. ''I don't know how everyone got out alive.''
Multistory homes came to rest at odd angles, some nearly intact and others splintered and trailing debris. One house, snapped in two, had an American flag fluttering from a balcony.
At the top of the hill, the foundations of several homes were left exposed, their corners jutting out with nothing underneath to support them. One road ended abruptly, with the edge of the pavement hanging over a tangle of debris scattered downhill.
Fifteen to 18 homes were believed to be total losses, police Capt. Danelle Adams said. About 20 others were ''very tenuous,'' she said.
''There is still movement so I think that we are still in a danger zone,'' Adams said.
Sheriff's deputies went door-to-door to check for victims. Search-and-rescue crews were standing by.
Two children were admitted to a hospital in good condition, and two others were treated at the scene for minor injuries, authorities said. A 71-year-old woman whose house was destroyed was taken to the hospital, suffering what appeared to be the effects of stress.
Laguna Beach, offering vistas of the Pacific from coastal bluffs, has some of Southern California's most desirable real estate. The damaged homes, situated about 15 blocks from the ocean, were each worth $2 million to $3 million, residents said.
The neighborhoods have been hit before by flooding, mudslides and wildfire. In February 1998, a rainstorm triggered slides that damaged 300 homes, 18 of them severely, and killed two people. An October 1993 fire swept down into the city and destroyed some 400 homes. Most were rebuilt within a half-dozen years.
Last January, a landslide crashed down into the coastal community of La Conchita, in Ventura County northwest of Los Angeles, killing 10 people.
Laguna Beach's Pageant of the Masters _ a festival in which famous artworks are recreated with live actors _ has drawn crowds for decades. The community was prominently featured on the MTV show ''Laguna Beach: The Real Orange County'' that debuted in September, chronicling the lifestyle and love lives of local teens.
