Central Valley land subsidence

California's Central Valley subsides when groundwater is pumped faster than underground aquifers can be recharged. The Central Valley has been sinking at differing rates since the 1920s and is estimated to have sunk up to 28 feet. During drought years, the valley is prone to accelerated subsidence. California periodically experiences droughts of varying lengths and severity.

Central Valley land subsidence

California's Central Valley subsides when groundwater is pumped faster than underground aquifers can be recharged. The Central Valley has been sinking at differing rates since the 1920s and is estimated to have sunk up to 28 feet. During drought years, the valley is prone to accelerated subsidence. California periodically experiences droughts of varying lengths and severity.