9df8df52-d753-37a8-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 2026-04-16 UK GEMINI 2.3 http://data.bgs.ac.uk/id/dataHolding/13605353 Determination of the Rupture History of Large Earthquakes from Analysis of Broad Band Seismograms 2005-10-01 creation http://data.bgs.ac.uk/id/dataHolding/13605353 PROJECT DETAILS ONLY - NO DATA. A complete picture of the processes occurring on seismically active faults is the essential prerequisite for the reliable assessment and mitigation of earthquake hazards. But earthquake parameters vary greatly over the fault in large earthquakes. For example, earthquake fault slip can range from 1-15 metres on different portions of the fault for any earthquake. Further slow slip has also been observed after a recent earthquake. In addition, earthquake damage depends directly on the speed at which the Earth's crust fractures. Our earlier studies showed that it is possible for this rupture velocity to be very high on some portions of the fault. Thus, sites close to regions of higher rupture velocity would be damaged more than other regions. Advance knowledge of such sites, based on earthquakes that have already occurred, is invaluable for making decisions on siting of critical structures (for example, dams, bridges, power plants, etc.). This proposal aims to quantify the distribution of slip, rupture speed, stress drops, and other fundamental source characteristics over the fault for several recent large earthquakes, by analysing seismograms. The results will also be used to increase our understanding of active tectonic areas. The relevant equations will be solved using a massively parallel computer cluster. The recent occurrence of several large earthquakes makes this investigation timely. Das, Dr S University of Oxford Earth Sciences not available principalInvestigator Enquiries British Geological Survey 0115 936 3143 0115 936 3276 Environmental Science Centre, Nicker Hill, Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk distributor Enquiries British Geological Survey 0115 936 3143 0115 936 3276 Environmental Science Centre, Nicker Hill, Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk pointOfContact notApplicable https://resources.bgs.ac.uk/images/geonetworkThumbs/9df8df52-d753-37a8-e044-0003ba9b0d98.png Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Chemistry Natural hazards Tectonics Physics BGS Thesaurus of Geosciences 2022 revision NGDC Deposited Data dataCentre NERC_DDC otherRestrictions Project metadata only - no data. otherRestrictions The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. 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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 British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation ANDAMAN ISLANDS [id=923500] British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation JAPAN [id=540000] ISO 3166_1 alpha-2 2009 revision JP ISO 3166_1 alpha-3 2009 revision JPN ISO 3166_1 alpha-2 2009 revision PE ISO 3166_1 alpha-3 2009 revision PER British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation PERU [id=864000] British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation SUMATRA [id=562000] British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979 creation XIZANG [id=512000] 92.2200 93.1600 10.4800 13.6400 78.6200 99.2300 27.3000 36.4700 -76.5000 -75.5000 -15.0000 -12.0000 95.0000 108.0000 -6.0000 6.0000 122.0000 145.0000 25.0000 45.5100 2005-10-01 2009-03-31 NE/C518806/1 Tabular Data Files witheld Enquiries British Geological Survey 0115 936 3143 0115 936 3276 Environmental Science Centre, Nicker Hill, Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk 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 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.