har har har great pun. I thought that I read that miraculously no-one was seriously hurt

The neighborhoods have been hit before by flooding, mudslides and wildfire.

In February 1998, a rainstorm triggered slides that damaged 300 homes 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.

And in October 1978, a slide in the same canyon destroyed 14 homes.

Last January, a landslide crashed down into the coastal community of La Conchita, in Ventura County northwest of Los Angeles, killing 10 people.

The damaged homes generally sell for $2 million or more, residents said

And I heard on NPR that many/most of them signed a release waiver on their insurance for this sort of thing.

Dumbasses.