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GSN AND GLOBAL EARTHQUAKE CENTROID MOMENT TENSORS
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The NSF-funded Global CMT Project at Columbia University is aimed at monitoring global earthquake activity and determining earthquake source characteristics for all earthquakes greater than magnitude 5.0. The Global CMT catalog (http://www.globalcmt.org), produced primarily from GSN data, contains the most comprehensive collection of global earthquake centroid moment tensors available, and spans the period 1976–2010. The CMT catalog has become recognized as an essential community resource, and is the standard database used in a wide range of seismic, geodetic, and tectonic studies of earth dynamics and deformation.</p>

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