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Fault displacement data for dyke-induced faults in part of the Dabbahu-Manda Hararo magmatic segment, Afar, Ethiopia (NERC Grant NE/R014086/1)

Publisher
British Geological Survey (BGS)
Updated
25 September 2026
Topic
Not set
Licence
Not set

Summary

The location and displacement of dyke-induced (and tectonic?) normal faults near the Ado'Ale Volcanic Centre in the Dabbahu-Manda Hararo Magmatic Segment of Afar, Ethiopia. The files include: 1) Dabbahu_fault_traces_2012_CM - this shapefile and associated files provides a map of fault traces mapped by Craig Magee (CM) using an airborne LiDAR survey acquired in November 2012 by the UK Natural Environment Research Council’s Airborne Research and Survey Facility (NERC ARSF) as part of the ET07/04: The Hararo Rift Segment in the Afar Triple Junction, and geohazards in the Afar capital, Semara project (see Hofmann, 2013 for acquisition and processing details; data available from https://catalogue.ceda.ac.uk/uuid/332dd80c62c16b42c2e87f588272b751). 2) Dabbahu_fault_data_2009 - this .csv file contains X, Y co-ordinates in the WGS 1984 UTM Zone 37N co-oridnate system that mark vertices for numerous faults. At each vertice, a measure of fault displacement (displ) in metres has been obtained. Fault mapping and displacement analysis were conducted on an airborne LiDAR survey acquired in October 2009 by the UK Natural Environment Research Council’s Airborne Research and Survey Facility (NERC ARSF) as part of the ET07/01: Earth crust grow at divergent plate boundaries project (see Hofmann, 2013 for acquisition and processing details; data available from https://catalogue.ceda.ac.uk/uuid/3e9e51d301962741d9ae32fce502dd48). The fault displacements measured constitute cumulative values of surface deformation accrued through multiple slip events since the initial breaching of breaking of the surface by the faults. This data was collected and processed by Barbara Hofmann during their PhD thesis (Hofmann, 2013), and has been quality controlled and modified by Craig Magee (2023). 3) Dabbahu_fault_data_Oct2008 - this .csv file contains X, Y co-ordinates in the WGS 1984 UTM Zone 37N co-oridnate system that mark vertices for numerous faults. At each vertice, a measure of fault displacement (displ) in metres has been obtained. These displaceemnt data were obtained by calculating surface displacement across the faults during a dyking episode in October 2008 using InSAR data (see Hofmann, 2013). This data was collected and processed by Barbara Hofmann during their PhD thesis (Hofmann, 2013), and has been quality controlled and modified by Craig Magee (2023). 4) Dabbahu_fault_data_2009-2012 - this .csv file contains X, Y co-ordinates in the WGS 1984 UTM Zone 37N co-oridnate system that mark vertices for numerous faults. At each vertice, a measure of fault displacement (displ) in metres has been obtained. Fault displacement was calculated by subtracting the two airborne LiDAR survey acquired in October 2009 and Novemer 2012 from each other to produce a differential LiDAR map detailing ground deformation accrued in the intervening 2009-2012 period (see Hofmann, 2013 for acquisition and processing details). This data was collected and processed by Barbara Hofmann during their PhD thesis (Hofmann, 2013), and has been quality controlled and modified by Craig Magee (2023). Reference: Hofmann, Barbara (2013) How do faults grow in magmatic rifts? LiDAR and InSAR observations of the Dabbahu rift segment, Afar, Ethiopia. PhD thesis, University of Leeds. https://etheses.whiterose.ac.uk/7546/

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Data – 25/9/2026

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Additional information

Source Metadata
XML, HTML
Date added
25 September 2026
Harvest GUID
04d5de93-92c6-376b-e063-0937940acadc
Extent (Latitude)
12.5000° to 12.0000°
Extent (Longitude)
40.5000° to 41.0000°
Dataset reference date (creation)
2023-09-05
Frequency of update
notApplicable
Access 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.
Responsible party
University of Leeds (originator); British Geological Survey (distributor, pointOfContact)
ISO 19139 resource type
dataset
Metadata language
eng

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