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U.S. Geological Survey National Center visitor entrance in 2011 The approximately 1,000,000 sq. ft., 1,200 foot long U.S. Geological Survey National Center building sits on a 105-acre site and is divided into three main sections—the agency administration offices, the laboratories, and the map reproduction area.
The U.S. Geological Survey (USGS) reported that a magnitude 5.8 M w earthquake hit Virginia on Tuesday, August 23, 2011, at 17:51:04 UTC (1:51 pm Eastern Daylight Time). The quake occurred at an approximate depth of 3.7 miles and was centered in Louisa County (location at 37.936°N, 77.933°W), 5 miles SSW of Mineral, Virginia and 37 miles NW of Richmond, Virginia's capital. [3]
The USGS headquarters in Reston, VA. Today, the United States Geological Survey Library's users have access to over 1.7 million items: over 980,000 books and journals, over 600,000 maps, over 8,000 electronic media items (DVDs, CDs), and subscribes to over 113,000 electronic journal titles and eBooks.
In 2015, the USGS unveiled the topoView website, a new way to view their entire digitized collection of over 178,000 maps from 1884 to 2006. The site is an interactive map of the United States that allows users to search or move around the map to find the USGS collection of maps for a specific area.
The National Map is part of the USGS National Geospatial Program. [3] The geographic information available includes orthoimagery (aerial photographs), elevation, geographic names, hydrography, boundaries, transportation, structures and land cover. The National Map is accessible via the Web, as products and services, and as downloadable data ...
Data published in the National Atlas is archived as 1997-2014 Edition of The National Atlas of the United States [3] [dead link ] on the U.S. government's [4] website. The U.S. Geological Survey continues to make at least a subset of the National Atlas data available under its National Map Small Scale Collection. [5]
Generalized geologic map of the central Virginia Piedmont with faults and earthquakes (M>2, 1973–2011). The earthquake's epicenter and most of the aftershocks lie between the surface traces of two structures, the Spotsylvania Fault, a southeast dipping zone of high ductile strain, and the Chopawamsic Fault, a thrust fault. [10]
Butterwood Creek is actually longer than Stony Creek at 25 miles in length and arises near Wellville, Virginia at an elevation of nearly 400 feet amsl. Butterwood Creek then flows east through swampy areas to join White Oak Creek. White Oak Creek also arises at about 400 feet amsl and about a 1/2 mile east of Butterwood Creek near Wilsons ...