The work of the original article (Rong et al., 2017) also represents the results of the cooperative research between the University of Kentucky and Institute of Crustal Dynamics. It has been updated online to include authors who were inadvertently omitted from the original online publication.

The correct citation of the Central United States Seismic Observatory (CUSSO) data should be

Woolery, E. W., Z. Wang, N. S. Carpenter, R. Street, and C. Brengman (2016). The Central United States Seismic Observatory: Site characterization, instrumentation, and recordings, Seismol. Res. Lett.87, no. 1, 215–228, doi: 10.1785/0220150169.

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