Science Explorer

Exploring: Subsidence

San Joaquin Valley Subsidence

https://www.usgs.gov/san-francisco-bay-and-sacramento-san-joaquin-delta-estuary/science/san-joaquin-valley-subsidence-0 (HTML Document 54.91 KB)

USGS is studying land subsidence in relation to water-project canals in California’s Central Valley.   ...

Land subsidence at a GPS station in the Central Valley

https://www.usgs.gov/media/images/land-subsidence-gps-station-central-valley (HTML Document 42.56 KB)

Land subsidence at a GPS station in the Central Valley () ...

San Joaquin Valley Subsidence

https://www.usgs.gov/node/728263 (HTML Document 54.91 KB)

USGS is studying land subsidence in relation to water-project canals in California’s Central Valley.   ...

San Joaquin Valley Subsidence

https://www.usgs.gov/san-francisco-bay-and-sacramento-san-joaquin-delta-estuary/science/san-joaquin-valley-subsidence-0?qt-science_center_objects=1 (HTML Document 54.91 KB)

USGS is studying land subsidence in relation to water-project canals in California’s Central Valley.   ...

San Francisco Bay and Sacramento-San Joaquin Delta Estuary

https://www.usgs.gov/sf-bay-topics/delta-island-subsidence (HTML Document 50.37 KB)

+ USGS scientists have been studying land subsidence in California for more than 60 years. ...

San Joaquin Valley Subsidence

https://www.usgs.gov/san-francisco-bay-and-sacramento-san-joaquin-delta-estuary/science/san-joaquin-valley-subsidence-0?qt-science_center_objects=0 (HTML Document 54.91 KB)

USGS is studying land subsidence in relation to water-project canals in California’s Central Valley.   ...

Land subsidence at a GPS station in the Central Valley

https://www.usgs.gov/atom/13927 (HTML Document 42.56 KB)

Land subsidence at a GPS station in the Central Valley () ...

San Francisco Bay and Sacramento-San Joaquin Delta Estuary

https://www.usgs.gov/sf-bay-topics/san-joaquin-valley-subsidence (HTML Document 50.45 KB)

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San Francisco Bay and Sacramento-San Joaquin Delta Estuary

https://www.usgs.gov/sf-bay-themes/land-subsidence (HTML Document 55.40 KB)

+ Land Subsidence USGS scientists are studying the causes and impacts of land subsidence to help protect Bay-Delta communities from flooding and ... ensure the integrity of water-conveyance systems in California’s Central Valley. Subsidence weakens levees and threatens crucial aqueducts that supply ... water to more than 25 million California residents and vast farmlands. Filter Total Items: 2 USGS scientists have been studying land subsidence in California for more than 60 years. August 10, 2016 ...

Land Subsidence in the San Joaquin Valley

https://www.usgs.gov/media/images/land-subsidence-san-joaquin-valley (HTML Document 43.60 KB)

Land Subsidence in the San Joaquin Valley Approximate point of maximum subsidence in the San Joaquin Valley, California. Land surface subsided ~9 m ...

Coastal subsidence and relative sea level rise

Modified 2015-08-18
https://pubs.er.usgs.gov/publication/70155948 (HTML Document 20.28 KB)

-system compaction and consequent land subsidence. This subsidence can be rapid, as much as 30 cm per year in some instances, and large, totaling more than ... 13 m in extreme examples. Thus anthropogenic subsidence may be the dominant contributor to relative sea-level rise in coastal environments where ... subsurface fluids are heavily exploited. Maximum observed rates of human-induced subsidence greatly exceed the rates of natural subsidence of ...

Slide 1

Modified 2014-03-27
https://ca.water.usgs.gov/projects/central-valley/sanJoaquin/Sneed_Subsidence_Delta-Mendota-Canal.pdf (PDF Document 8.55 MB)

Land Subsidence along the Delta-Mendota Canal in the Northern Part of the San Joaquin Valley, California Michelle Sneed California Water ... ► Subsidence is largely permanent ► Subsidence occurred when groundwater levels declined to historically low levels as a result of pumping ► Recent ... subsidence has shifted about 25 mi northeast from historical (1926-70) maximum ► Long-term monitoring of water levels and subsidence is needed to detect ... and track groundwater conditions for decision support Subsidence Damages Natural Resources and Infrastructure ► Flood Protection and ...

Land subsidence due to ground-water withdrawal in the Los Banos-Kettleman City area, California; Part 2, subsidence and compaction of deposits

Modified 2012-02-02
https://pubs.er.usgs.gov/publication/ofr7256 (HTML Document 14.95 KB)

Land subsidence due to ground-water withdrawal in the Los Banos-Kettleman City area, California; Part 2, subsidence and compaction of deposits Open ... -File Report 72-56 Superseding Publications: Download citation as: RIS Title: Land subsidence due to ground-water withdrawal in the Los Banos-Kettleman ... City area, California; Part 2, subsidence and compaction of deposits Series title: Open-File Report Series number: ...

Land Subsidence in California | USGS California Water Science Center

Modified 2017-03-01
https://ca.water.usgs.gov/land_subsidence/index.html (HTML Document 17.83 KB)

Toggle navigation Land Subsidence From left to right: Dr. Joseph Poland posing with a telephone pole indicating land surface elevation in 1925 ... compared to 1977; buckling of the Delta-Mendota Canal due to land subsidence in the area; land-subsidence fissure at the Fort Irwin National Training Center ... Subsidence in California What is land subsidence? Land subsidence is a gradual settling or sudden sinking of the Earth's surface owing to subsurface ... and gas extraction, hydrocompaction, natural compaction, sinkholes, and thawing permafrost ( Why is land subsidence a problem? Effects of land ...

Land Subsidence Monitoring Networks | USGS California Water Science Center

Modified 2017-03-01
https://ca.water.usgs.gov/land_subsidence/california-subsidence-studies.html (HTML Document 17.95 KB)

Toggle navigation USGS Land Subsidence Studies in California Approximate location of maximum subsidence in the U.S., identified by research efforts ... Joaquin Valley southwest of Mendota, CA. The USGS has conducted subsidence studies in California since the 1950s. Today, subsidence studies carried out by ... -frequency measurements by using statistical and simulation modeling techniques. This produces high-quality scientific information about subsidence ... status and trends. Results of USGS Land Subsidence Studies help California water managers assess and track the state of water resources in their area ...

Land subsidence due to ground-water withdrawal in the Los Banos-Kettleman City area, California; Part 1, Changes in the hydrologic environment conducive to subsidence

Modified 2012-02-02
https://pubs.er.usgs.gov/publication/ofr7257 (HTML Document 15.26 KB)

Land subsidence due to ground-water withdrawal in the Los Banos-Kettleman City area, California; Part 1, Changes in the hydrologic environment ... conducive to subsidence Open-File Report 72-57 Superseding Publications: Download citation as: RIS Title: Land subsidence due to ground-water withdrawal in ... the Los Banos-Kettleman City area, California; Part 1, Changes in the hydrologic environment conducive to subsidence Series title: Open-File Report Series number: ...

Land Subsidence in California | USGS California Water Science Center

Modified 2017-03-01
https://ca.water.usgs.gov/land_subsidence/ (HTML Document 17.83 KB)

Toggle navigation Land Subsidence From left to right: Dr. Joseph Poland posing with a telephone pole indicating land surface elevation in 1925 ... compared to 1977; buckling of the Delta-Mendota Canal due to land subsidence in the area; land-subsidence fissure at the Fort Irwin National Training Center ... Subsidence in California What is land subsidence? Land subsidence is a gradual settling or sudden sinking of the Earth's surface owing to subsurface ... and gas extraction, hydrocompaction, natural compaction, sinkholes, and thawing permafrost ( Why is land subsidence a problem? Effects of land ...

Reconnaissance maps of earth fissures and land subsidence, Bowie and Willcox areas, Arizona

Modified 2012-02-10
https://pubs.er.usgs.gov/publication/mf1156 (HTML Document 17.60 KB)

Reconnaissance maps of earth fissures and land subsidence, Bowie and Willcox areas, Arizona Miscellaneous Field Studies Map 1156 By: Download ... citation as: RIS Title: Reconnaissance maps of earth fissures and land subsidence, Bowie and Willcox areas, Arizona Series title: Scale: 24000 ...

Land subsidence near oil and gas fields, Houston, Texas.

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70013564 (HTML Document 16.81 KB)

Subsidence profiles across 29 oil and gas fields in the 12 200 km2 Houston, Texas, regional subsidence area, which is caused by the decline of ground ... -water level, suggest that the contribution of petroleum withdrawal to local land subsidence is small. In addition to land subsidence, faults with an ... withdrawal have all been considered as potential causes of the historical offset across these faults. The minor amount of localized land subsidence ...

Anomalous increases in piezometric levels in advance of longwall mining subsidence

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70021021 (HTML Document 17.25 KB)

Anomalous increases in piezometric levels in advance of longwall mining subsidence Environmental and Engineering Geoscience By: C.J. Booth, A.M ... the opening of fractures and bedding planes during early subsidence. However, in studies over two active longwall mines in southern Illinois, temporary ... rises in head just before subsidence were observed in piezometers constructed in low-permeability units. Although the initial phase of subsidence is ... the leading edge of subsidence or transmission of stress related to dewatering of underlying permeable units. Additional publication details Anomalous ...