Geologists in Rancho Palos Verdes Discover New, Deeper Landslide

Geologists in Rancho Palos Verdes Discover New, Deeper Landslide
An "Area Closed" sign is displayed outside the Wayfarers Chapel in a landslide-prone area following its closure due to land movement after heavy rains in Rancho Palos Verdes, Calif., on Feb. 16, 2024. Patrick T. Fallon/AFP via Getty Images
Rudy Blalock
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A Southern California city that sits atop an ancient—yet active—landslide now faces a new problem as city geologists have discovered land movement deeper underground than initially expected, which they say changes everything.

“We now realize it is this larger, deeper, slip plane that is moving, which is why our project that we’ve been working on since 2017 ... has to change,” Rancho Palos Verdes City Manager Ara Mihranian said during an Aug. 20 city council meeting.