The Sunken City is the site of a natural landslide that occurred in the Point Fermin area of the San Pedro neighborhood of Los Angeles, beginning in 1929. A slump caused several beachside homes to slide into the ocean. The area was originally developed in the 1920s by George H. Peck, featuring homes with views of the Pacific Ocean. Experts investigating the landslide said that the ground was shifting at a rate of 11 inches per day.