This electronic supplement contains all OIINK catalog information used in the paper, including the seven focal mechanism solutions determined by this study inside the Ste. Genevieve seismic zone (SGSZ). Other reference earthquake catalogs can be downloaded from the corresponding webpages cited in the Data Resources section in the main paper.
Table S1. Earthquake parameters in the OIINK catalog. Duration magnitude is used and is converted from local magnitudes (mL) using equation (1) in the paper: mD ≈ 0.677 × mL + 0.595 (see main text for details). For all of the earthquakes reported only by OIINK and other earthquakes shared with the New Madrid catalog from CERI but located inside the SGSZ, the magnitudes are determined by this study. For other earthquakes reported by both OIINK and CERI, the CERI solutions are accepted (see main text for details). The following are the descriptions for each column in the table: (1) ID number assigned to the event, (2) UTC origin date of the earthquake, (3) UTC origin time of the earthquake, (4) longitude of the earthquake (°), (5) latitude of the earthquake (°), (6) depth of the earthquake (km), (7) corrected duration magnitude, (8) source reporting the earthquake, (9) source of the accepted earthquake parameters, and (10) number of arrivals associated with the event.
Table S2. Focal mechanism solutions and the corresponding source parameters for earthquakes in the OIINK catalog. The orientation of one of the two nodal planes is shown for each event. OIINK duration magnitude (mD) is converted from OIINK local magnitudes (mL) using equation (1) in the paper: mD ≈ 0.677 × mL + 0.595. The following are the descriptions for each column in the table: (1) ID number assigned to the event, (2) UTC origin date of the earthquake, (3) UTC origin time of the earthquake, (4) longitude of the earthquake (°), (5) latitude of the earthquake (°), (6) depth of the earthquake (km), (7) corrected duration magnitude, (8) strike of one of the nodal planes of the focal mechanism solution (°), (9) dip of one of the nodal planes of the focal mechanism solution (°), (10) rake of one of the nodal planes of the focal mechanism solution (°), (11) trend of the P axis of the focal mechanism solution (°), (12) plunge of the P axis of the focal mechanism solution (°), (13) trend of the T axis of the focal mechanism solution (°), and (14) trend of the T axis of the focal mechanism solution (°).
Download: OIINK Catalog [Zip Archive; 372 KB]. The archive of the CSS3.0 Antelope relational database tables contains the OIINK local earthquake catalog database.
Download: Datascope [Zip Archive; 580 KB]. “The Antelope Relational Database System, Datascope: A Tutorial” contains a statement of the CSS3.0 schema in the Datascope documentation.
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