Figure 2

Seismicity in the region recorded on the regional network. (a) Map of events during the period 2014–2021 colored by time and scaled by magnitude. No major events were recorded, including during the slip episodes in 2017 and 2018. Horizontal wells are shown in red. (b) Seismicity over the time period 2017–2020 plotted versus distance to the wellpad and scaled by magnitude. Times shaded in grey correspond to the approximate times at which the SSEs occurred; there appears to be no spatiotemporal correlation with significant seismic events. Created using86,87 (see “Acknowledgements” for full details).