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).

Date (Creation): 2022-04-14

Citation identifier: http://data.bgs.ac.uk/id/dataHolding/13607929

Point of contact

Organisation name	Individual name	Electronic mail address	Role
University of Bristol	Dr J P Verdon	not available	Principal investigator
University of Oxford	Tom Kettlety	not available	Originator
University of Bristol	Antony Butcher	not available	Originator
British Geological Survey	Enquiries	not available	Distributor
British Geological Survey	Enquiries	not available	Point of contact

Maintenance and update frequency: notApplicable

GEMET - INSPIRE themes, version 1.0

Geology

BGS Thesaurus of Geosciences

Seismicity
NGDC Deposited Data
Induced seismicity
Hydraulic fracturing
Earthquakes

dataCentre

NGDC Deposited Data

Keywords

NERC_DDC

Access constraints: Other restrictions

Other constraints: licenceOGL

Other constraints: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Use constraints: Other restrictions

Other constraints: 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.

Other constraints: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Spatial representation type: Vector

Language: English

Topic category

Geoscientific information

Geographic identifier: Lancashire County [id=5156]
British Geological Survey Gazetteer: OS Boundary Line 2009 revision

Begin date: 2018-10-15

End date: 2019-10-06

Unique resource identifier: WGS 84 (EPSG::4326)

Distribution format

Name	Version
csv files

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	not available	Distributor

OnLine resource

Protocol	Linkage	Name
	https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item173104	Data

OnLine resource

Protocol	Linkage	Name
	https://doi.org/10.1785/0220190110	Published Paper

OnLine resource

Protocol	Linkage	Name
	https://doi.org/10.1785/0220200187	Published Paper

OnLine resource

Protocol	Linkage	Name
	https://www.nstauthority.co.uk/media/6968/pnrmagnitudestudyfinalreport.pdf	Published Paper

OnLine resource

Protocol	Linkage	Name
	https://doi.org/10.5285/709cbc2f-af5c-4d09-a4ea-6deb5aa8c5d8	Digital Object Identifier (DOI)

Hierarchy level: Dataset

Other: dataset

Conformance result

Title: INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology

Date (Publication): 2011

Explanation: See the referenced specification

Pass: No

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication): 2010-12-08

Explanation: See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF

Pass: No

Statement: 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.