Seismic Hazards and Zones of Required Investigation. After reviewing geologIcal and seismic data submitted for consideration during the public comment period, the California Geologic Survey released the official map showing the Earthquake Zones of Required Investigation in the Hollywood Quadrangle. Earthquake Zones of Required Investigation Visit. The CGS Information Warehouse is a place to find and download selected reports, maps, and data published by the California Geological Survey. A study from the University of Toronto Mississauga reveals new clues about an earthquake that rocked Argentina’s San Juan province in the 1950s.

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Seismic Hazards and Zones of Required Investigation The Alquist-Priolo Earthquake Fault Zoning Act (1972) and the Seismic Hazards Mapping Act (1990) direct the State Geologist to delineate regulatory "Zones of Required Investigation" to reduce the threat to public health and safety and to minimize the loss of life and property posed by earthquake-triggered ground failures. The results add important data about one of the Earth’s most active thrust zones and could help to protect cities in the region from earthquake damage in the future.

They do not depict different degrees of hazard, rather they identify zones within which site-specific studies will be required for new construction. Visit Datasets in Showcase CGS Seismic Hazards Program: Unevaluated Areas Your browser is currently not supported. Zones of required investigation for possible earthquake faulting, landslides, and liquefaction are delineated and distributed to cities, counties, and state construction agencies to help identify where higher building standards may … CA Department of Conservation. Skip to Main Content. Name: Earthquake Fault Zone of Required Investigation Display Field: FAULT_ZONE Type: Feature Layer Geometry Type: esriGeometryPolygon Description: The Alquist-Priolo Earthquake Fault Zoning Act was passed in 1972 to mitigate the hazard of surface faulting to structures for human occupancy. Intensities of the last M L 6.2, July 11, 1927 Dead Sea earthquake, reached MSK VIII in the Old City of Jerusalem and the surrounding villages. Visit Datasets in Showcase. Interactive Earthquake-Induced Landslide Hazard Map. This map is derived from State-mandated regulatory maps that show “Zones of Required Investigation” for landslide (and liquefaction) hazard.

Menu Contact Search The Act requires site-specific geotechnical investigations be conducted identifying the hazard and formulating mitigation measures prior to permitting most developments designed for human occupancy within the Zones of Required Investigation. Zones of required investigation for earthquake-related hazards in Jerusalem.

We formulated relative grades of vulnerability for each of the hazards and delineated the zones that require further specific investigation. earthquake; fault traces; fault-zones; landslide-zones; liquefaction-zones; Earthquake Zones of Required Investigation Submitted by. California Geological Survey Zones of Required Investigation for Earthquake-Induced Landslides 33 Geologic Data The primary sources of bedrock geologic mapping used in the slope stability evaluation of the Livermore Valley Study Area were obtained from U.S. Geological Survey Open-File Report 96-252 (Graymer and others, 1996), the 1:24,000-scale Cities and counties are then required to use the Seismic Hazard Zone maps in their land use planning and building permit processes.

Parent Layer: < 1:24000 Name: Earthquake Fault Zone of Required Investigation Display Field: FAULT_ZONE Type: Feature Layer Geometry Type: esriGeometryPolygon Description: The Alquist-Priolo Earthquake Fault Zoning Act was passed in 1972 to mitigate the hazard of surface faulting to structures for human occupancy. Downloadable (with restrictions)! Both the Act and the Natural Hazard Disclosure Statement also require sellers of real property to disclose to buyers if property is in a seismic hazard Zone of Required Investigation… Earthquake Zones of Required Investigation Visit.

State of California.

Earthquake Zones of Required Investigation Submitted by.

regulatory zones (Zones of Required Investigation) and to issue appropriate maps (both Earthquake Fault Zones and Seismic Hazard Zone maps) that delineate the zones. Check with … In addition, cities and counties are to incorporate the Seismic Hazard Zone Maps into their Safety Elements. Excerpt of the map showing Zones of Required Investigation for Liquefaction of the Dublin 7.5-minute quadrangle in the vicinity of the intersection of Hopyard Road and Arroyo Mocho.

8) Seismic Hazard Zones identified on this map may include developed land where delineated hazards have already been mitigated to city or county standards. earthquake; fault traces; fault-zones; landslide-zones; liquefaction-zones To get started, choose a … CGS Seismic Hazards Program: Unevaluated Areas; CGS Seismic Hazards Program: Unevaluated Areas ; CGS Seismic Hazards Program: Landslide Zones; CGS Seismic …