“Further review area” means an area of land within which further site specific review should occur before land management or building activities begin because either the State Department of Geology and Mineral Industries or the State Forestry Department determines that the area reasonably could be expected to include sites that experience rapidly moving landslides as a result of excessive rainfall.
(2)
“Landslide” means any detached mass of soil, rock or debris that is of sufficient size to cause damage and that moves down a slope or a stream channel.