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The U. S. Geological Survey (USGS) makes long-term seismic hazard forecasts that are used in building codes. The hazard models usually consider only natural seismicity; non-tectonic (man-made) earthquakes are excluded because they are transitory or too small. In the past decade, however, thousands of earthquakes related to underground fluid injection have occurred in the central and eastern U.S. (CEUS), and some have caused damage. In response, the USGS is now also making short-term forecasts that account for the hazard from these induced earthquakes. A uniform earthquake catalog is assembled by combining and winnowing pre-existing source catalogs. Seismicity statistics are analyzed to develop recurrence models,...
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This dataset is a polygon coverage of the thickness of the overburden of the Pocahontas No. 3 coal bed, in feet. It was produced by importing 1:100,000 (30-minute) and 1:24,000 scale (7.5-minute) digital elevation models (DEM) into ARC, and merging the lattices into one. The structure elevation grid for the Pocahontas No. 3 coal bed was subtracted from the surface elevation grid, creating overburden thickness. This grid was contoured within the known extent of the Pocahontas No. 3 coal bed into 200, 500, 1000, 2000, and 3000 foot lines. This vector file was imported to ARC. Polygon attributes include a code for the USGS overburden category (Coal Resource Classification of the U.S. Geological Survey, USGS, Circular...
Categories: Web Site; Tags: 54047 = McDowell, Virginia Department of Mines, Minerals and Energy, USGS, coal, FAYETTE County, All tags...
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The High Resolution National Hydrography Dataset Plus (NHDPlus HR) is an integrated set of geospatial data layers, including the best available National Hydrography Dataset (NHD), the 10-meter 3D Elevation Program Digital Elevation Model (3DEP DEM), and the National Watershed Boundary Dataset (WBD). The NHDPlus HR combines the NHD, 3DEP DEMs, and WBD to create a stream network with linear referencing, feature naming, "value added attributes" (VAAs), elevation-derived catchments, and other features for hydrologic data analysis. The stream network with linear referencing is a system of data relationships applied to hydrographic systems so that one stream reach "flows" into another and "events" can be tied to and traced...
Types: Citation; Tags: Cumberland County, Huntingdon County, National Hydrography Dataset (NHD), Falls Church City, King George County, All tags...


map background search result map search result map Overburden thickness categories of Pocahontas No. 3 coal bed USGS US Topo 7.5-minute map for Doe Hill, VA-WV 2016 USGS US Topo 7.5-minute map for Gore, VA-WV 2016 USGS US Topo 7.5-minute map for Oceana, WV 2016 USGS US Topo 7.5-minute map for Pax, WV 2016 USGS US Topo 7.5-minute map for Peterson, WV 2016 USGS US Topo 7.5-minute map for Petroleum, WV 2016 USGS US Topo 7.5-minute map for Prince, WV 2016 USGS US Topo 7.5-minute map for Princeton, WV-VA 2016 USGS US Topo 7.5-minute map for Onego, WV 2016 USGS US Topo 7.5-minute map for Terra Alta, WV 2016 USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) Best Resolution for HU4-0207 (Subregion) Publication Date 20170426 HU-4 Subregion USGS Combined Vector for Narrows, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 48390 Westernport, Maryland 20170225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Louisa, Kentucky 20160527 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 27514 Mannington, West Virginia 20170224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 44095 Sylvester, West Virginia 20170224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 47452 Wardensville, West Virginia 20170225 for 7.5 x 7.5 minute FileGDB 10.1 West Virginia 2015 State Wildlife Action Plan Species of Greatest Conservation Need USGS US Topo 7.5-minute map for Doe Hill, VA-WV 2016 USGS US Topo 7.5-minute map for Gore, VA-WV 2016 USGS US Topo 7.5-minute map for Oceana, WV 2016 USGS US Topo 7.5-minute map for Pax, WV 2016 USGS US Topo 7.5-minute map for Peterson, WV 2016 USGS US Topo 7.5-minute map for Petroleum, WV 2016 USGS US Topo 7.5-minute map for Prince, WV 2016 USGS US Topo 7.5-minute map for Princeton, WV-VA 2016 USGS US Topo 7.5-minute map for Onego, WV 2016 USGS US Topo 7.5-minute map for Terra Alta, WV 2016 USGS Combined Vector for Narrows, Virginia 20160713 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 48390 Westernport, Maryland 20170225 for 7.5 x 7.5 minute FileGDB 10.1 USGS Combined Vector for Louisa, Kentucky 20160527 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 27514 Mannington, West Virginia 20170224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 44095 Sylvester, West Virginia 20170224 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 47452 Wardensville, West Virginia 20170225 for 7.5 x 7.5 minute FileGDB 10.1 Overburden thickness categories of Pocahontas No. 3 coal bed USGS National Hydrography Dataset Plus High Resolution (NHDPlus HR) Best Resolution for HU4-0207 (Subregion) Publication Date 20170426 HU-4 Subregion West Virginia 2015 State Wildlife Action Plan Species of Greatest Conservation Need