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The Central Valley in California subsides when groundwater is pumped faster than underground aquifers can be recharged. The Central Valley has been sinking ( subsiding ) at differing rates since the 1920s and is estimated to have sunk up to 28 feet. [ 1 ]
Natural causes include; earthquakes, erosion, glacial movement, soil compaction and the formation of sinkholes. [ 18 ] Groundwater use and pumping in the area was the major water use for farmers and agriculture in the 1920s, and over time, this over-pumping resulted in land subsidence and a decline in groundwater-level resources.
Monticello Dam is a 304-foot (93 m) high concrete arch dam in Napa County, California, United States, constructed between 1953 and 1957. The dam impounded Putah Creek to create Lake Berryessa in the Vaca Mountains. Lake Berryessa is currently the seventh-largest man-made lake in California.
Firefighters measure a sinkhole that swallowed a vehicle in front of a high school in Ventura County, California, on March 1, 2023.
California’s San Joaquin Valley may be sinking nearly an inch per year due to the over-pumping of groundwater supplies, with resource extraction outpacing natural recharge, a new study has found.
The "geyser" formed around 1953 [4] [6] about 5 miles (8.0 km) northwest of Niland [7] in Mundo, [3] just south of Gillespie Road and east of Route 111 and Davis Road. [8] In 2008, David Lynch and Kenneth Hudnut described it as a "Large active shieldlike pot" located on private land at 33°17.117′ -115°34.620' and gave it the designation W9. [9]
The storm also spawned a sinkhole Monday night in Chatsworth that swallowed a car, then a pickup truck. The sinkhole, at least 50 feet wide and 30 feet deep, opened on Iverson Road just off the ...
2018 Surabaya City sinkhole – a 30 m (98 ft) wide and 15 m (49 ft) deep sinkhole opened up on Gubeng Road in Surabaya, Indonesia during construction work on December 18, 2018. 2022 Tierra Amarilla sinkhole – a 25 m (80 ft) wide and more than 200 m (700 ft) deep sinkhole appeared in the commune of Tierra Amarilla , Atacama Region of Chile ...