Land Movement in Rancho Palos Verdes Speeds Up Following Winter Rains
New Land Movement Disrupts Rancho Palos Verdes Community
LOS ANGELES COUNTY, Calif. – Recent winter storms have triggered an uptick in land movement within Rancho Palos Verdes, particularly affecting the Portuguese Bend area. Reports indicate that some parts of this region are shifting approximately 2 inches per week, a concerning development after a period of relative stability.
City officials and engineers have observed this increase, noting it is a rise from the previously recorded rate of 1.5 inches. However, it remains significantly lower than the severe shifts of 12 to 14 inches per week noted roughly a year ago.
Ara Mihranian, a city official, emphasized the link between the recent rainfall and the land’s behavior, stating, "We’re seeing movement increase again, and that’s directly tied to the rain we had over the holidays." He explained that heavy rainfall allows water to penetrate the ground, exacerbating the landslide conditions.
The area has faced instability for decades, but the situation intensified in early 2024 when parts of the landscape were shifting at alarming rates, leading to extensive damage to homes and infrastructure. Damien Hammond, vice president of development for Alpha Structural, highlighted the visible impacts, mentioning, "This house is now about 10 feet closer to the ocean."
The ongoing movement has resulted in the demolition of some homes. Once inhabited properties now stand vacant, with some residents relying on makeshift methods, such as ropes, to traverse the unstable terrain. More than 400 homes are estimated to be affected, with over 20 designated as unsafe for occupancy. Unfortunately, many residents have been without gas and electricity for over a year.
Amid the disruptions, many have adapted by turning to propane and solar energy. "Many of these homes are now essentially off the grid," Hammond noted.
Despite these challenges, officials express cautious optimism regarding stabilization efforts. Mihranian stated, "Stabilizing this landslide so we can get to a point where the rate of movement is what it historically has been — not a couple inches a week. If we get to that point, we’ve been told by Southern California Edison they’ll consider re-energizing the area."
As the situation evolves, residents remain vigilant, closely monitoring the shifting landscape beneath their homes.
