Search results
Results from the WOW.Com Content Network
A landslide in which the sliding surface is located within the soil mantle or weathered bedrock (typically to a depth from few decimeters to some meters) is called a shallow landslide. Debris slides and debris flows are usually shallow.
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 the landslide.
Landslides can be triggered by many, sometimes concomitant causes. In addition to shallow erosion or reduction of shear strength caused by seasonal rainfall, landslides may be triggered by anthropic activities, such as adding excessive weight above the slope, digging at mid-slope or at the foot of the slope. Often, individual phenomena join to ...
It estimates the average annual soil loss A on a plot-sized area as: [99] A = RKLSCP. where R is the rainfall erosivity factor, [100] [101] K is the soil erodibility factor, [102] L and S are topographic factors [103] representing length and slope, [104] C is the cover and management factor [105] and P is the support practices factor. [106]
Using laser scans and GPS cameras, accurate down to one inch, the U.S. Geological Survey has so far mapped more than 600 landslides caused by Hurricane Helene.
Illinois' ecology is in a land area of 56,400 square miles (146,000 km 2); the state is 385 miles (620 km) long and 218 miles (351 km) wide and is located between latitude: 36.9540° to 42.4951° N, and longitude: 87.3840° to 91.4244° W, [1] with primarily a humid continental climate.
Huge landslide at La Conchita, 1995. A geologic hazard or geohazard is an adverse geologic condition capable of causing widespread damage or loss of property and life. [1] These hazards are geological and environmental conditions and involve long-term or short-term geological processes.
(The Center Square) – A lawsuit has been filed with the Illinois Supreme Court in an effort to throw out the current legislative maps that the plaintiffs said are the result of extreme ...