redwood city liquefaction mapbluff park long beach

redwood city liquefaction map


View full campus map Driving directions to Barron Parking Garage 2855 Bay Rd, Redwood City, CA 94063 Southbound From 101 Exit Whipple Avenue Continue onto Veterans Boulevard Turn Right onto Chestnut Street Turn Left onto Broadway Turn Right onto Woodside Road Turn Left onto Bay Road From 280 Exit CA-84E/Woodside Road Turn Left onto Woodside Road Continue on Woodside Road to
Liquefaction during large earthquakes commonly disrupts pipelines and road networks and also may cause buildings to settle and move downslope or toward stream banks.These new maps cover the San Francisco Bay region (outlined in red). Liquefaction susceptibility has been mapped in most areas of Canterbury to show whether liquefaction is possible, or unlikely, during strong earthquake shaking. When the ground liquefies, it may lose its ability to support buildings and other structures. Soft muds on which it was constructed shook much more strongly than surrounding regions on stronger ground. Areas of San Francisco at risk of liquefaction during an earthquake. In addition, the California Geological Survey has zoned the greater San Francisco area for liquefaction hazard in their seismic hazard maps . High liquefaction potential means that there is a 50% probability of having an earthquake within a 100-year period that will be strong enough to cause liquefaction. Figure on the right (USGS photo) shows part of the Cypress structure, the freeway approach to the Bay Bridge from Oakland, which collapsed during the Loma Prieta earthquake, killing 42 people. Geographic Information System (GIS) is a division at the City of Redwood City that creates, maintains, and analyzes spatial data. ... Release and Revision History: Seismic Hazard Zone Map and Evaluation Report of the Redwood Point Quadrangle, SHZR 79 January 2, 2003 Preliminary Map Release (Alameda County only) ... Redwood City and Menlo Park. Most residents of the Bay Area live and work in these low-lying areas that are underlain by these young deposits. The liquefaction potential categories shown on this map depend on the probability of having an earthquake within a 100-year period that will be strong enough to cause liquefaction in those zones. Detailed mapping is needed to forecast where shaking will be strongest during future earthquakes.The second of the maps shows the likelihood that these young deposits will liquefy, or turn into a sandy liquid due to the strong shaking a big earthquake will produce. Soft muds shake much harder than bedrock. Liquefaction during large earthquakes commonly disrupts pipelines and road networks and also may cause buildings to settle and move downslope or toward stream banks.These new maps cover the San Francisco Bay region (outlined in red). A Northern San Francisco and the Marin peninsula are not included in the new maps because geologic field mapping in these regions is incomplete. Other potentially hazardous areas include those along some of the larger streams, which produce the loose young soils that are particularly susceptible to liquefaction.These new maps show a lower likelihood of liquefaction than previously thought in regions underlain by Bay mud that fringes many parts of San Francisco Bay.
Today the city is known as the home of several technology companies such as Oracle and Electronic Arts. The older map also shows locations of liquefaction observed in historical earthquakes, particularly the In addition, the California Geological Survey has zoned the greater San Francisco area for liquefaction hazard in their We can expect history to repeat itself in the next big Bay Area earthquake.The highest hazard areas shown by the liquefaction hazard maps are concentrated in regions of man-made landfill, especially fill that was placed many decades ago in areas that were once submerged bay floor. Such areas along the Bay margins are found in San Francisco, Oakland and Alameda Island, as well as other places around San Francisco Bay. These maps are designed to give the general public as well as land-use planners, utilities and lifeline owners, and emergency response officials, new and better tools to assess their risk from earthquake damage. Redwood City is a California charter city located on the San Francisco Peninsula in Northern California, approximately 27 miles (43 km) south of San Francisco, and 24 miles (39 km) north of San Jose. Liquefaction, a process in which loose, granular soils below the ground water table temporarily lose strength during strong earthquake shaking, has been the cause of considerable damage during earthquakes. Traced from a PDF file; please let me know about any errors. Redwood City is rich in history, from its earliest inhabitation by the Ohlone people, to its tradition as a port for lumber and other goods, to its place as the county seat of San Mateo County. Bay mud remains a seismic hazard because on the basis of its past performance in earthquakes it will produce stronger levels of shaking than other geologic units.The new maps show in unprecedented detail the nature of the materials that underlie areas of densest urban development and highlight areas that may be prone to shaking-related damage during future earthquakes. Web Maps: View Interactive Maps . Most residents of the Bay Area live and work in these low-lying areas that are underlain by these young deposits. Other potentially hazardous areas include those along some of the larger streams, which produce the loose young soils that are particularly susceptible to liquefaction.These new maps show a lower likelihood of liquefaction than previously thought in regions underlain by Bay mud that fringes many parts of San Francisco Bay.

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