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Subsidence

California Subsidence
California delta subsidence
California Delta Subsidence: Problems put land and water supplies at risk.
Expansive Soils
Expansive soil map
Expansive Soils: Causes more damage than earthquakes, floods, hurricanes & tornadoes combined.
Subsidence and Coal
Coal
Subsidence and Coal Formation: About ten feet of plant debris will compact into just one foot of coal..
If it is not grown, it is mined.
 
Louisiana Subsidence
louisiana subsidence
Louisiana Coastal Subsidence: Glacial sediments and humans adding weight to the delta are contributing to the subsidence. USGS image.
Risk of Subsidence
Mineral rights
Mineral Rights - The Risk of Subsidence Mineral extraction can cause delayed damage to the surface which may not occur for decades after mining completion.
Oil is found first in the mind.
Liquefaction
Liquefaction occurs when water-saturated soil is severely shaken and looses strength.
Subsidence Insurance
Homeowner's insurance
Homeowner's Insurance Does Not Cover Subsidence: The typical homeowners policy does't cover natural hazards. It is simply a fire and liability policy.

The present is the key to the past.
 
Subsidence News
Sinkholes in Pennsylvania:  Sinkholes are a common geological hazard in many...

Flood Thread to Bangkok is Rising:  The land beneath Bangkok is subsiding, sea level...

Mining Under Mount Pleasant, Pennsylvania:  An article on the Pittsburgh Live website explains...

Colorado Survey Investigates Coal Mine Subsidence:  An article in the Denver Post describes what...

Subsidence Problems: Rock Springs, Wyoming:  An article on the Trib.com website explores subsidence...

Sea-Level Rise, Subsidence, and Wetland Loss:  “This video describes causes of wetland loss in...

Investigating Land Subsidence and Earth Fissure Hazards:  “The Arizona Land Subsidence Interest Group, a cadre...

Temporary Solutions to Bangkok Subsidence?:  Bangkok is subsiding. Sea level is rising. It...

Huge Increases in Florida Sinkhole Insurance Rates:  Sinkholes are an expensive problem in some parts...

Arizona: Land Subsidence Maps:  The Arizona Department of Water Resources has a...

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