Sacramento Stockton Modesto, CA, August 6, 2026 —

New research published in the Proceedings of the National Academy of Sciences reveals that the Sacramento Valley has undergone substantial land subsidence, with certain areas sinking as much as three feet. This phenomenon is primarily attributed to extensive groundwater pumping that occurred during the severe drought conditions experienced between 2020 and 2022.

The study utilized satellite observations to monitor the changes in land elevation across the region. The findings indicate a direct correlation between the increased reliance on groundwater for agricultural and other uses during the dry period and the resulting land subsidence. While the study suggests that the potential for recovery exists, it also cautions that some of the damage caused by this sinking may be permanent.

Land subsidence, the gradual sinking or settling of the ground surface, can have numerous consequences. It can lead to increased vulnerability to flooding, damage to infrastructure such as roads, bridges, and buildings, and alterations in water flow and drainage systems. The extent of the sinking in the Sacramento Valley highlights the significant impact that prolonged drought and groundwater extraction can have on regional geology and infrastructure.

Researchers involved in the study are continuing to monitor the affected areas. The long-term implications of the land sinking are still being assessed, as are potential mitigation strategies. The findings underscore the critical need for sustainable groundwater management practices, especially in regions prone to drought.


Story summarized from the original created by Natalie Sierra on fox40.com, see more information here.

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