Subsidence is the process through which a piece of land lowers to a lower level than the surrounding land, or a building sinks into the earth. You are covered for losses caused by land subsidence as a result of erosion that fall within our definition of floods. Land that rises due to natural causes is not considered flooding.
Flooding from underground water sources is usually not covered under this policy. However, if you have a loss due to flooding of an indoor swimming pool, we will cover your loss if the cause of the flooding was soiling of pipes or other defects in your plumbing system. We will also cover your loss if there is evidence that soil has been washed out from around structures on higher ground than where they stand today. This would be evidence that the land had subsided below sea level before the buildings stood on it.
If you experience a loss due to land subsidence, you must report it to your agent or insurance company within 60 days after the loss. The policy requires you to give us written notice of any claim arising out of land subsidence. Payment of claims is based on the amount of coverage applied to your residence. If you want payment to reflect the actual cash value of the property at the time of loss or damage, you must make such a request in writing within 90 days of receiving proof of loss.
The rapid sinking or slow downward settling of the ground's surface with little or no horizontal motion is referred to as subsidence. Subsidence is defined without regard to the rate, size, or area of the downward movement. The term applies to movements at any depth below the surface.
Subsidence can be natural or caused by human activity. Natural subsidence occurs when an unstable layer of rock or soil under high stress levels is removed from time to time as in earthquake zones or when the layer is lifted as in a landslide. Subsidence may also be caused by human activity such as mining or drilling. In this case, the underlying rock is weakened and becomes more susceptible to further damage or collapse.
Subsidence can have serious effects on buildings and other man-made structures. It can cause cracks in the ground surface that expose hazardous materials such as gas or water, it can shift the foundation of a building causing structural problems or it could lead to the loss of land underneath a structure. The danger from subsidence should not be underestimated; people living in areas where there is a risk of subsidence should take precautions to protect their homes and businesses.
Subsidence is a common problem in coastal areas where sea levels are rising due to climate change or seismic activity.
Subsidence The process by which one becomes less active or severe (geology) Sinking of anything to a lower level, particularly of a portion of the Earth's surface as a result of subsurface excavation, seismic activity, or groundwater depletion. Humans are also responsible for some minor subsidence due to mining and oil drilling.
Subsidence can be good or bad depending on how it affects your property. Subsidence may be good if it doesn't cause any damage to your home or business but it could be bad if water enters your basement through old drainage pipes or holes in the ground surface. In this case, subsidence would be considered an earthquake hazard.
Subsidence can also be bad if it causes parts of your yard or driveway to drop down because of erosion caused by underground water. This type of subsidence is called "land slippage". Land slippage is always dangerous because it creates a hidden obstacle that could cause a car to crash.
Finally, subsidence can be dangerous if it leads to the collapse of buildings or bridges. In this case, it would be called a "seismic shock".
There are two types of seismic shocks: strong shocks and weak shocks. A strong shock is like an explosion that generates very high-speed waves that travel through the Earth causing further earthquakes or changing the shape of the landscape.
Geologists, geotechnical engineers, surveyors, engineers, urban planners, landowners, and the general public are all concerned about ground sinking. Subsidence can be caused by many factors including natural causes such as erosion or volcanoes, but most often it is due to human activity such as mining or drilling for oil and gas.
Subsidence can be detrimental to people living in or near areas where it occurs. It can cause damage to property, decrease land values, and increase the risk of injury during construction work. Subsidence can also affect the quality of life by changing the appearance and usability of recreational areas and harming wildlife habitats.
Subsidence should be defined as the gradual lowering of a body below its normal position. In geology, subsidence refers to the process by which the surface area of land is reduced because of geological degradation or soil movement. Subsidence can be either vertical or horizontal. Vertical subsidence results from tectonic activity or volcanic eruptions, while horizontal subsidence is caused by drilling or mining activities.
People are becoming more aware of the dangers of horizontal subsidence due to recent news stories about earthquakes being triggered by hydraulic fracturing (fracking) in Oklahoma and New York.
The slow or abrupt sinking of the earth's surface is referred to as land subsidence. Natural phenomena such as earthquakes, soil compaction, glacial isostatic adjustment, erosion, sinkhole development, and adding water to fine soils deposited by wind can also produce subsidence (a natural process known as loess deposits). Subsidence can also be caused by human activity such as mining, drilling for oil or gas, or construction. The amount of subsidence varies depending on the cause, but it can be very significant in some cases.
Subsidence can result in problems for people who live near the area where it occurs. It can lead to property damage and make living conditions more difficult by causing flooding and ground instability. Subsidence can also affect the size of an area available for industrial use, transportation, or other developments. In some cases, subsidence may indicate an underlying problem with a foundation, which should be investigated by a professional architect or engineer before any further work is done.
Subsidence occurs when an area of land falls over time due to erosion, collapse, or other processes. There are two types of subsidence: vertical and horizontal. Vertical subsidence happens when an area of land sinks downward slowly over time, usually due to erosion or the removal of support structures such as buildings or roads. This type of subsidence can be seen in coastal areas, river valleys, and other areas where soil is lost from exposure to the elements.
Land subsidence is the slow or abrupt sinking of land. The removal of subsurface water, compaction, drainage of organic soils, underground mining, and thawing permafrost are the key reasons. The major reasons in Connecticut are underground soil loss from strong rains and abandoned mine collapse. The effects of land subsidence can be seen in coastal areas where ocean waters are encroaching on the land or in rural communities where roads are damaged by sinking soil.
Subsurface water has a high salt content which causes soil to dry out quickly when exposed to air. When this happens, the salt is released into the soil causing it to shrink. This is why dry regions experience ground subsidence. Urban expansion can also lead to land subsidence because building foundations are deep and drain well-filtered water away from buildings. This leaves behind dry soil that can't sustain weight above it. Soil compaction occurs when heavy vehicles travel over an area forcing the soil into hard surfaces that other vehicles may not be able to penetrate. This can happen during construction activities or at highway checkpoints where cars are searched. Mining involves removing earth from beneath its surface weight using heavy machinery. The top layer of rock is left exposed after mining is completed. This allows sunlight to reach the mineral deposits below and evaporate any remaining water. As a result, land that was once submerged is now visible.
Rainfall also has an effect on land subsidence.