9df8df52-d734-37a8-e044-0003ba9b0d98 English dataset British Geological Survey +44 115 936 3100 Environmental Science Centre,Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk pointOfContact 2026-05-03 UK GEMINI 2.3 http://data.bgs.ac.uk/id/dataHolding/13605322 Seismo-Volcanic Crisis in Afar: The 2005 Boina-Erta 'Ale Rupture-Eruption Sequence 2005-10-15 creation http://data.bgs.ac.uk/id/dataHolding/13605322 PROJECT DETAILS ONLY - NO DATA. Since 20 September, 2005, an ~120 km-long segment of the Red Sea rift system in Ethiopia has been rocked by 31 earthquakes detected on seismometers worldwide. Ashes emanating from long, open fissures at the surface have blanketed a much wider area, displacing ~50,000 people and their livestock. Colleagues from Addis Ababa University report new fault scarps, and new displacements along existing fault scarps; these faults provide direct measures of rates of crustal deformation that can only be inferred from routine monitoring. The active rupture zone is much larger than has been associated with other historic sequences in the Afar depression, and other continental rift zones worldwide, suggesting this linked tectonic-volcanic crisis is a major event. Thus, the Boina seismo-volcanic crisis provides a superb opportunity to record directly the processes of continental breakup leading to the formation of a new ocean basin. Routine seismic, volcanic, and geodetic monitoring provides information on the time-averaged deformation, but misses the sometimes catastrophic discrete events that achieve the tectonic processes. This proposal aims to: 1) establish a seismic monitoring network to measure aftershock sequences and lava movement within the plate; 2) investigate reports of new eruptions and measure gas emissions from vents along the length of the rupturing segment and compare them with earlier baseline measurements from Afar; and 3) use space-based radar images acquired prior to, during, and after the crisis to measure the magnitude and extent of deformation across the region. Simple elastic modelling of seismic and radar interferometry results will allow us to estimate the proportion of tectonic vs magmatic deformation associated with continental rupture. Additionally, our measurements will provide a firm basis for hazard mitigation for the Ethiopian government coping with this catastrophe, supplementing the sparse infrastructure established by our Ethiopian colleagues. Ebinger, Professor J Unviersity of Rochester Earth & Env Sciences not available principalInvestigator Enquiries British Geological Survey United Kingdom not available distributor Enquiries British Geological Survey United Kingdom not available pointOfContact notApplicable https://resources.bgs.ac.uk/images/geonetworkThumbs/9df8df52-d734-37a8-e044-0003ba9b0d98.png Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Seismology Volcanology Natural hazards Tectonics Earth surface BGS Thesaurus of Geosciences 2022 revision NGDC Deposited Data dataCentre NERC_DDC otherRestrictions intellectualPropertyRights Project metadata only - no data. Either : (i) the dataset has not been formally approved by BGS for access and use by external clients under license; and / or (ii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted before the dataset can be provided to, or accessed by, BGS staff or external clients. Refer to the BGS staff member responsible for the creation of the dataset if further advice is required. He / she should be familiar with the composition of the dataset, particularly with regard to 3rd party IPR contained in it, and any resultant access restrictions. This staff member should revert to the IPR Section (IPR@bgs.ac.uk) for advice, should the position not be clear. otherRestrictions 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. Either: (i) the dataset is made freely available, e.g. via the Internet, for a restricted category of use (e.g. educational use only); or (ii) the dataset has not been formally approved by BGS for access and use by external clients under licence, but its use may be permitted under alternative formal arrangements; or (iii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted in order to determine the permitted usage of the dataset. Refer to the BGS staff member responsible for the creation of the dataset if further advice is required. He / she should be familiar with the composition of the dataset, particularly with regard to 3rd party IPR contained in it, and any resultant use restrictions. This staff member should revert to the IPR Section (ipr@bgs.ac.uk) for advice, should the position not be clear. English geoscientificInformation ISO 3166_1 alpha-2 2009 revision ET ISO 3166_1 alpha-3 2009 revision ETH British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation ETHIOPIA [id=692000] 39.0000 44.0000 9.0000 15.0000 2005-10-15 2007-04-14 NERC Grant Reference NE/D008611/1. Co-Investigator: Dr TJ Wright. All the seismic data from NE/D008611/1 - Seismo-volcanic crisis in Afar: the 2005 Boina-Erta 'Ale rupture-eruption are archived at Seis-UK. Enquiries British Geological Survey United Kingdom not available distributor https://www.bgs.ac.uk/ WWW:LINK-1.0-http--link BGS Homepage The BGS Homepage is an entry point to the BGS data services. information dataset dataset INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology 2011 publication See the referenced specification false 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 2010-12-08 publication See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF false No Lineage.