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  2. Central Valley land subsidence - Wikipedia

    en.wikipedia.org/wiki/Central_Valley_land_subsidence

    For example, almond orchards require large volumes of water, but due to an increased use of drip tape farmers have dramatically reduced water use. [7] Governor Jerry Brown of California also imposed restrictions on unnecessary water usage during the California drought that began in 2012. Measures included drought-tolerant landscaping, rebate ...

  3. Groundwater-related subsidence - Wikipedia

    en.wikipedia.org/wiki/Groundwater-related_subsidence

    These areas are now subject to severe flooding due to subsidence associated with groundwater removal. [5] [6] Total subsidence can usually be determined by ground-surface elevation surveys and GPS measurements. Potential impact on the aquifers and other resulting geohazards such as fissures can be assessed through long-term hydrologic studies ...

  4. San Jacinto Fault Zone - Wikipedia

    en.wikipedia.org/wiki/San_Jacinto_Fault_Zone

    The San Jacinto Fault Zone and the San Andreas Fault (SAF) accommodate up to 80% of the slip rate between the North American and Pacific plates.The extreme southern portion of the SAF has experienced two moderate events in historical times, while the SJFZ is one of California's most active fault zones and has repeatedly produced both moderate and large events.

  5. 1979 Imperial Valley earthquake - Wikipedia

    en.wikipedia.org/wiki/1979_Imperial_Valley...

    With the San Jacinto Fault Zone to the northwest, the Elsinore fault to the south-southwest, and the Imperial fault centered directly under the Imperial Valley, the area frequently encounters seismic activity, including moderate and damaging earthquakes. Other events in 1852, 1892, 1915, 1940, 1942, and 1987 have impacted the region. [8]

  6. List of earthquakes in California - Wikipedia

    en.wikipedia.org/wiki/List_of_earthquakes_in...

    Following destructive earthquakes in the late 19th and early 20th centuries, real estate developers, press, and boosters minimized and downplayed the risk of earthquakes out of fear that the ongoing economic boom would be negatively affected. [3] [4] California earthquakes (1769–2000)

  7. California's water from Colorado River could be crippled by a ...

    www.aol.com/news/water-supply-shrinks-california...

    Southern California's water district installs a quake-resistant pipe along the Colorado River Aqueduct to prevent a major spill.

  8. 1812 San Juan Capistrano earthquake - Wikipedia

    en.wikipedia.org/wiki/1812_San_Juan_Capistrano...

    The primary tectonic feature in California is the strike-slip San Andreas (SAF) system of faults that form part of the diffuse Pacific–North American plate boundary. This transform fault trends south-southeast through much of northern and central California, but turns more southeasterly at the southern end of the California Coast Ranges at a prominent restraining bend.

  9. 1992 Cape Mendocino earthquakes - Wikipedia

    en.wikipedia.org/.../1992_Cape_Mendocino_earthquakes

    The 1992 Cape Mendocino earthquakes (or 1992 Petrolia earthquakes) occurred along the Lost Coast of Northern California on April 25 and 26. The three largest events were the M7.2 thrust mainshock that struck near the unincorporated community of Petrolia midday on April 25 and two primary strike-slip aftershocks measuring 6.5 and 6.6 that followed early the next morning.