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The State of California Department of Conservation produces regulatory maps showing locations where the hazard from earthquake-triggered landslides must be evaluated prior to specific types of land-use development in accordance with provisions of Public Resources Code, Section 2690 et seq. (Seismic Hazards Mapping Act). These maps and related ...
This type of measure is used in cases of smaller landslides. The effectiveness of micropiles is linked to the insertion of micropiles over the entire landslide area. In the case of rotational landslides in soft clay, the piles contribute to increasing the resisting moment by friction on the upper part of the pile shaft found in the landslide.
The Seismic Hazards Mapping Act, passed in 1990, addresses non-surface fault rupture earthquake hazards, including liquefaction and seismically induced landslides. The act only applies to faults which are "sufficiently active" and "well defined"- for example the 1994 Northridge earthquake occurred on a blind thrust fault not zoned by the act ...
Rancho Palos Verdes, a coastal community in the Los Angeles area, could be described as a geological ticking time bomb. The affluent city sits atop steep cliffs overlooking the Pacific Ocean that ...
With more than 72% of the votes, the bonds will be used to build and refurbish county schools. In a landslide, Beaufort County votes ‘yes’ to $439 million school referendum Skip to main content
It came as a shock when a landslide destroyed homes in Rolling Hills Estates last July. But research from UCLA and NASA shows that land movement preceded the catastrophe.
The Complex encompasses four historically active landslide areas within the city limits: Abalone Cove Landslide; Beach Club Landslide; Klondike Canyon Landslide; and Portuguese Bend Landslide; as well as the areas outside of the city’s border of those named landslides. [18] [19] [17] [20]
A state of emergency was declared in one Southern California city as landslides threaten homes and left hundreds without power. Rancho Palos Verdes, Calif. residents are pleading with city council ...