In contrast to the western United States where seismicity is high and seismic networks are dense, the central and eastern United States (CEUS) is covered with sparse seismic networks. The relatively low seismicity in the CEUS has also led to a limited dataset of waveform data from local earthquakes, hindering the development of reliable ground‐motion prediction equations in the CEUS. This situation has been changing with the Earthscope Transportable Array (USArray) program that started installing about 1000 broadband and short‐period stations in the CEUS starting in 2009, and will fully cover the CEUS soon. Such large numbers of stations provide...

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