A shapefile of fault lines from the western United States can be obtained from https://earthquake.usgs.gov/static/lfs/nshm/qfaults/Qfaults_GIS.zip. The high seismic risk posed by this fault zone requires a large-scale active faults map, a fundamental data set for seismic hazard mitigation. Map of known active geologic faults in the San Francisco Bay region, Alquist-Priolo Earthquake Fault Zone Maps. The interactive map provides detailed reports for each fault by placing the cursor over the fault and clicking to bring up a link to the information. This movement may occur rapidly, in the form of an earthquake - or may occur slowly, in the form of creep . An online map of faults that includes California is in the Faults section of the Earthquake Hazards Program website. Why are there so many earthquakes and faults in the Western United States? The Great Valley is a basin, initially forming ~100 million years ago as a low area between the subducting ocean plate on the west (diving down under the North American plate) and the volcanoes to the east (now the Sierra Nevada mountains). KML (Google Earth-type) files and GIS shape files are also available for download from the site. A wealth of public domain data is available for scientists and researchers at no cost. Faults allow the blocks to move relative to each other. State of California. USGS seismic hazard maps, data, and tools for California and other parts of the United States are in the Hazards section of the... A fault is a fracture or zone of fractures between two blocks of rock. Publication. A geonarrative (Esri Story Map) describing what it might be like the next time the Hayward fault has a large earthquake. With innovations, fresh data, and lessons learned from recent earthquakes, scientists have developed a new earthquake forecast model for California, a region under constant threat from potentially damaging events. The NBMG Open Data page is now live! The bedrock geology integrates all details of compilations from 1:50,000 to 1:250,000. Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data. An online map of faults that includes California is in the Faults section of the Earthquake Hazards Program website. What is a fault and what are the different types? Since the formation of the San Andreas Fault system 25-30 million years ago, the juxtaposition of the Pacific and North... A Quaternary fault is one that has been recognized at the surface and that has moved in the past 1,600,000 years (1.6 million years). Prior Great Earthquakes Unveiled at the Western Edge of the 1964 Alaska Rupture, Low-Flying Airplane Mapping Virginia’s Underground Faults Next 11 Days, USGS Releases Quaternary Fault Database for the Nation, Cat Scan'-Like Seismic Study of Earthquake Zone Helps Set Stage for Fault Drilling Project, Alaska Interior Reveals Scars and Ruptures from 7.9 Denali Fault Quake, USGS Geologists Inspecting Fault Trace in a Trench, Geosciences and Environmental Change Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Map of known active geologic faults in the San Francisco Bay region. Teams. The map depicts both active and inactive faults and earthquakes magnitude 1.5 to 7.0 in the greater San Francisco Bay area. Since its formation, the Great Valley has continued to be low in elevation. The Great Valley is a basin, initially forming ~100 million years ago as a low area between the subducting ocean plate on the west (diving down under the North American plate) and the volcanoes to the east (now the Sierra Nevada mountains). Now you can find out the answer to these questions online through a user-friendly interface developed by the USGS. A large part of the region’s population lives within 50 miles of the San Andreas fault and could be exposed to very strong levels of ground shaking in a … Faults may range in length from a few millimeters to thousands of kilometers. Esri Hub site for LA County Enterprise GIS for the purposes of sharing and visualizing spatial data for LA County users and the public. The land mask is written to a NetCDF file so you can use it later for masking other variables on the same grid. STRUCTURAL_FEATURES_IN.SHP is a line shapefile that shows the location of known structural features in Indiana. The maps estimate the size of potential debris flows, commonly known as mudflows, and the areas that could be affected when rainfall begins on recently-burned areas. The percentage shown within each colored circle is the probability that a M 6.7 or. That places fault movement within the Quaternary Period , which covers the last 2.6 million years. Coastal and Marine Hazards and Resources Program, Geology, Minerals, Energy, and Geophysics Science Center, Debris Flow Hazard Maps for Southern California Released, USGS Release Updated Landslide Hazard Maps for Southern California, 3D likelihood California earthquake in the next 30 years, Hayward Fault - A virtual tour demonstration. Scientists examined a hypothetical earthquake, the magnitude 7.0 HayWired earthquake scenario. Physiographic Provinces The mapped traces represent the integration of the following three different types of data: (1) geomorphic expression, (2) creep (aseismic fault slip),and (3) trench exposures. Obtain Shapefile of Fault Lines from the United States Geological Survey. Hover and click a part of the Philippine map to download GIS Datasets Choose the Interactive Fault Map, or download KML files and GIS shapefiles from the links on the page.USGS seismic hazard maps, data, and tools for California and other parts of the United States are in the Hazards section of the Earthquake Hazards Program A guidebook to tracing the fault on public lands in the San Francisco Bay region; 2006; GIP; 16; Stoffer, Philip W. First USGS urban seismic hazard maps predict the effects of soils; 2006; Article; Journal; Seismological Research Letters; Cramer, C. H.; Gomberg, J. S.; Schweig, E. S.; Waldron, B. Earthquakes and faults in southern California (1970-2010); 2012; SIM; 3222; Sleeter, Benjamin M.; Calzia, James P.; Walter, Stephen R. Where's the San Andreas fault? Welcome to the Philippine GIS Data Clearinghouse Your source of free GIS data for the Philippines. 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