Local and moment magnitudes of Preston New Road seismicity, 2018-2019

Dataset title	Local and moment magnitudes of Preston New Road seismicity, 2018-2019
Dataset creators	Tom Kettlety, University of Oxford Antony Butcher, University of Bristol
Dataset theme	Geoscientific Information
Dataset abstract	This is a combined microseismic catalogue of all of the seismic magnitudes recorded for microseismic events recorded during Cuadrilla's Preston New Road hydraulic fracturing operations. 5 magnitude types are given for each event: the downhole measured moment magnitude (Mw); the downhole measured local magnitude (ML); the surface measured ML; the surface measured Mw; and a combined/corrected Mw. This corrected Mw follows the procedure laid out in Kettlety et al. (2021, https://doi.org/10.1785/0220200187) and Baptie et al. (2020, Robust relationships for magnitude conversion of PNR seismicity catalogues. British Geological Survey Open Report, OR/20/042) Functionally, it combines the surface measured Mw and the downhole measured Mw corrected using Equations 4.6 and 4.7 of Baptie et al. (2020). Also included are event origin times, associated injection stages (as described in Clarke et al., 2020, https://doi.org/10.1785/0220190110, and Kettlety et al., 2021), whether this stage was a "minifrac" (just for PNR-1z), the "relative fracture order" (RFO) of that stage, and it's downhole measured location (easting and northing in BNG coordinates, and depth BSL). Downhole measurements Mw and ML were conducting by Schlumberger Ltd. on behalf to the Preston New Road operator Cuadrilla Resources Ldt., and surface ML and Mw were measured by the BGS in Baptie et al., (2020).
Dataset content dates	15/10/2018 to 06/10/2019
Dataset spatial coverage	Preston New Road (Lancashire, UK)
Dataset supply format	Comma separated variable (CSV)
Dataset language	English-United Kingdom
Dataset discovery metadata record	Discovery Link to the dataset's BGS Discovery Metadata record
Dataset publisher	NERC EDS National Geoscience Data Centre
Dataset publication date	26/04/2022
Dataset digital object identifier(DOI)	10.5285/709cbc2f-af5c-4d09-a4ea-6deb5aa8c5d8
Dataset citation text	Kettlety, T., Butcher, A. (2022). Local and moment magnitudes of Preston New Road seismicity, 2018-2019. Local and moment magnitudes of Preston New Road seismicity, 2018-2019. (Dataset). https://doi.org/10.5285/709cbc2f-af5c-4d09-a4ea-6deb5aa8c5d8
Constraints and terms of use	This data set is available under Open Government Licence, subject to the following acknowledgement accompanying any reproduced materials: "Contains data supplied by permission of the Natural Environment Research Council [YEAR]".
Access the dataset	https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item173104
Further information	Clarke, H., Verdon, J. P., Kettlety, T., Baird, Alan. F., & Kendall, J. M. (2019). Real‐Time Imaging, Forecasting, and Management of Human‐Induced Seismicity at Preston New Road, Lancashire, England. Seismological Research Letters, 90(5), 1902–1915. https://doi.org/10.1785/0220190110 Kettlety, T., Verdon, J. P., Butcher, A., Hampson, M., & Craddock, L. (2021). High-Resolution Imaging of the ML 2.9 August 2019 Earthquake in Lancashire, United Kingdom, Induced by Hydraulic Fracturing during Preston New Road PNR-2 Operations. Seismological Research Letters, 92(1), 151–169. https://doi.org/10.1785/0220200187 Baptie, B., Luckett, R., Butcher, A., & Werner, M. J. (2020). Robust relationships for magnitude conversion of PNR seismicity catalogues. BGS Open Report OR/20/042. https://www.nstauthority.co.uk/media/6968/pnrmagnitudestudyfinalreport.pdf, retrieved April 2022.