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Logo of the ANSS. The Advanced National Seismic System (ANSS) is a collaboration of the United States Geological Survey (USGS) and regional, state, and academic partners that collects and analyzes data on significant earthquakes to provide near real-time (generally within 10 to 30 minutes [1]) information to emergency responders and officials, the news media, and the public. [2]
According to the USGS, "ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes. These maps are used by federal, state, and local organizations, both public and private, for post-earthquake response and recovery, public and scientific information, as well as for preparedness exercises and ...
Lists, Maps, and Statistics at United States Geological Survey (USGS) Earthquake history of the United States through 1970 at USGS; Earthquake Data and Information at National Centers for Environmental Information (NCEI) Thomas Fuller; Anjali Singhvi; Mika Gröndahl; Derek Watkins (June 4, 2019). "Buildings Can Be Designed to Withstand Earthquakes.
As earthquake waves take time to travel around the globe, the estimated moment magnitude may change as more information is received. The NEIC uses seismograms recorded in the United States as well as around the globe. While they gather as much data as they can, some nations do not release earthquake data to the United States for political reasons.
U.S. Geological Survey National Center in Reston, Virginia Earthquake animations from May 16 to May 22, 2010 Earthquakes around the world from April 23 to May 23, 2010 Since 2012, the USGS science focus has been directed at topical "Mission Areas" [ 8 ] that have continued to evolve.
A 4.0-magnitude earthquake shook Southern California, the U.S. Geological Survey reported. The 6.5-mile-deep quake hit about 5 miles southeast of Ojai at 1:12 p.m. Friday, Nov. 3, according to the ...
The United States Geological Survey (USGS) estimates that, since 1900, there have been an average of 18 major earthquakes (magnitude 7.0–7.9) and one great earthquake (magnitude 8.0 or greater) per year, and that this average has been relatively stable. [43]
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