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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).
Commonly called mudslides, these dangerous torrents are usually referred to by geologists and first responders as debris flows, which the U.S. Geological Survey describes as fast-moving landslides ...
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 ...
The 2010 Uganda landslide caused over 100 deaths following heavy rain in Bududa region. Zhouqu county mudslide in Gansu, China on 8 August 2010. [61] Devil's Slide, an ongoing landslide in San Mateo County, California; 2011 Rio de Janeiro landslide in Rio de Janeiro, Brazil on 11 January 2011, causing 610 deaths. [62] 2014 Pune landslide, in ...
The term ground failure is a general reference to landslides, liquefaction, lateral spreads, and any other consequence of shaking that affects the stability of the ground. This usually takes place as an after-effect of an earthquake, and is one of the major causes of destruction after an earthquake. Ground failures tend to happen almost every ...
And Southern California has an additional factor: most of the region deals with some sort of natural disaster risk, whether it’s a landslide, flood, wildfire or earthquake. Pick your poison.
The difference between these two concepts is subtle but important. The landslide causes are the reasons that a landslide occurred in that location and at that time and may be considered to be factors that made the slope vulnerable to failure, that predispose the slope to becoming unstable. The trigger is the single event that finally initiated ...
In his latest report, he noted that the landslide continues to affect new areas, moving in some spots as much as 13 inches a week. For decades, most areas saw movement closer to a few inches a ...