Local and moment magnitudes of Preston New Road seismicity, 2018-2019 (NERC Grant NE/R018006/1)
This dataset is a catalogue of elastic stress models of hydraulic fracturing during the 2018 Preston New Road, PNR-1z operations (described in Clarke et al., 2019). This modelling was produced for the publication Kettlety et al. (2020), which studies the physical mechanisms controlling seismicity during hydraulic fracturing. For further details on the modelling approach and context for these data, see Kettlety et al. (2020) and the README file attached here.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
https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item173104
name: Data
function: download
https://doi.org/10.1785/0220190110
name: Published Paper
function: information
https://doi.org/10.1785/0220200187
name: Published Paper
function: information
https://www.nstauthority.co.uk/media/6968/pnrmagnitudestudyfinalreport.pdf
name: Published Paper
function: information
https://doi.org/10.5285/709cbc2f-af5c-4d09-a4ea-6deb5aa8c5d8
name: Digital Object Identifier (DOI)
function: information
http://data.bgs.ac.uk/id/dataHolding/13607929
eng
geoscientificInformation
publication
2008-06-01
Seismicity
Induced seismicity
Hydraulic fracturing
Earthquakes
revision
2011
NERC_DDC
-2.9700
-2.9600
53.7800
53.7800
revision
2009
Lancashire County [id=5156]
2018-10-15
2019-10-06
creation
2022-04-14
notApplicable
This data was produced within the Unconventional Hydrocarbons in the UK Energy System NERC project (within SHAPE-UK). This reanalysis of the earthquake magnitudes was conducted after downhole measurements were found to not be accurate for the largest events, and surface measurements had to be used. Corrections to all downhole measurements were conducted after the surface data was added in once discontinuities were noticed in the magnitude-frequency distribution. This process produced a single, corrected moment magnitude for the events in these catalogues, which are presented here. This process is detailed throughly in Kettlety et al. (2021) and Baptie et al. (2020). It was deemed valuable that all measures of magnitude for this data should be published in a single format, to help future study.
publication
2011
false
See the referenced specification
publication
2010-12-08
false
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
csv files
The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
Lecturer in Applied Geophysics, School of Earth Sciences
University of Bristol
Wills Memorial Building, Queens Road, Clifton
Bristol
BS8 1RJ
principalInvestigator
University of Oxford
originator
University of Bristol
originator
British Geological Survey
distributor
British Geological Survey
pointOfContact
British Geological Survey
Environmental Science Centre,Keyworth
NOTTINGHAM
NG12 5GG
United Kingdom
+44 115 936 3100
pointOfContact
2022-07-05