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2008 Wells earthquake (M6.0) Izu–Bonin–Mariana Arc subduction zone >2800: Micronesia: Subduction zone: Active: 1993 Guam (M7.8) Japan Trench: 1400: Off the coast of Honshu: Subduction zone: Active: see Seismicity of the Sanriku coast: Kabaw Fault >300: Myanmar: Oblique-thrust: Active: 1792 Rakhine (M8.8) Kameni-Kolumbo Fault zone >60 ...
Second, the NEIC collects and provides to scientists and to the public an extensive seismic database that serves as a solid foundation for scientific research, principally through the operation of modern digital national and global seismograph networks and through cooperative international agreements. The NEIC is the U.S. national data center ...
Earthquakes in the New Madrid and Wabash Valley seismic zones from 1974 to 2002, with magnitudes larger than 2.5 The zone had four of the largest earthquakes in recorded North American history, with moment magnitudes estimated to be as large as 7 or greater, all occurring within a 3-month period between December 1811 and February 1812.
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. Further organizational structure includes headquarters ...
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 ...
Earthquake epicenters 1963–98. In seismology, a seismic zone or seismic belt is an area of seismicity potentially sharing a common cause. It can be referred to as an earthquake belt as well. It may also be a region on a map for which a common areal rate of seismicity is assumed for the purpose of calculating probabilistic ground motions.
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]
Isoseismal map for the 1968 Illinois earthquake. In seismology, an isoseismal map is used to show countour lines of equally felt seismic intensity, generally measured on the Modified Mercalli scale. Such maps help to identify earthquake epicenters, particularly where no instrumental records exist, such as for historical earthquakes.