SECED 2015 was a two-day conference on Earthquake and Civil Engineering Dynamics that took place on 9-10th July 2015 at Homerton College, Cambridge.
This was the first major conference to be held in the UK on this topic since SECED hosted the 2002 European Conference on Earthquake Engineering in London.
The conference brought together experts from a broad range of disciplines, including structural engineering, nuclear engineering, seismology, geology, geotechnical engineering, urban development, social sciences, business and insurance; all focused on risk, mitigation and recovery.
SECED 2015 featured the following keynote speakers (affiliations correct at the time of the conference):
SECED allows the self-archiving of the Author Accepted Manuscripts (AAM) from the SECED 2015 Conference. This means that all authors can make their conference paper available via a green open access route. The full text of your paper may become visible within your personal website, your institutional repository, a subject repository or a scholarly collaboration network signed up to the voluntary STM sharing principles. It may also be shared with interested individuals, for teaching and training purposes at your own institution and for grant applications (please refer to the terms of your own institution to ensure full compliance).
To deposit your AAM, please adhere to the following conditions:
SECED allows authors to deposit their AAM under the Creative Commons Attribution Non-commercial International Licence 4.0 (CC BY-NC 4.0). The deposit must clearly state that the AAM is deposited under this licence and that any reuse is allowed in accordance with the terms outlined by the licence. To reuse the AAM for commercial purposes, permission must be sought by contacting seced@ice.org.uk. For the sake of clarity, commercial usage would be considered as, but not limited to:
Should you have any questions about our licensing policies, please contact seced@ice.org.uk.

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This paper provides a very simplified analysis of the risk arising from earthquake hazard on nuclear plant. The analysis captures the effect of the hazard being defined as an exceedance probability, rather than a point probability, per unit time. It also investigates the common cause nature of the hazard to multiple lines of protection and illustrates the dramatic effect this feature can exert on plant risk. One of the principal findings from the analysis is that the potential for plant failure due to earthquake hazard is most likely between the design basis value and twice this value, if the design basis represents a 1% conditional probability of plant failure. This highlights the importance of analysing the beyond design basis response of nuclear plant.
This analysis is presented as part of a discussion of the changes made recently to the Office for Nuclear Regulation’s (ONR’s) Safety Assessment Principles (SAPs). These changes were prompted by lessons arising from the Fukushima event in March 2011 and include an extended discussion of beyond design basis response.