The Ancient Landslide Complex in LA's Vicinity Accelerates and Expands

The ancient Palos Verdes Landslide Complex, situated near Los Angeles, is demonstrating signs of increased movement and growth, causing concern among scientists and locals alike. Despite its seemingly slow pace of 2 to 10 millimeters annually, the ground movement has been consistent since 2009, and it appears to be accelerating.

Geologists from California State University, Long Beach, have been meticulously studying and tracking the landslide's development. Using a combination of modern technologies such as Differential Interferometric Synthetic-Aperture Radar (DInSAR) and drone-based structure-from-motion photogrammetry, they have been able to measure and assess the complex's movement and expansion.

The Palos Verdes Landslide Complex is a collection of multiple ancient landslides, with the oldest being about 200,000 years old. However, the most recent significant slide occurred in 1956, which led to the demolition of 130 homes. The complex's continuous movement has prompted the mandatory evacuation of several homes over the years.

While the landslide complex's movement is generally slow, experts warn that increased acceleration could potentially lead to catastrophic events. They emphasize the importance of continuous monitoring and preparedness, especially in the wake of climate change and its effects on the landscape stability. The research findings are also expected to contribute to the development of safer building standards and improved land-use planning.