Seismic Hazard Assessment In Site Evaluation For Nuclear Installations

Provides the state-of-the-art practice and detailed technical elements related to ground motion evaluation by ground motion prediction equations (GMPEs) and site response in the context of seismic hazard assessments as recommended in IAEA Safety Standards Series No. SSG-9, Seismic Hazards in Site Evaluation for Nuclear Installations.

Diffuse seismicity refers to earthquakes occurring in locations where no apparent correlation can be made with any causative faults. This publication provides guidance for addressing the seismic hazard from diffuse seismicity in a manner consistent with internationally recognized practices and with reference to relevant IAEA safety standards.

This Safety Guide supersedes the 2010 edition of IAEA Safety Standards Series No. SSG-9. It takes account of recently gained knowledge and practices developed by Member States related to seismic hazards, especially lessons from the Fukushima Daiichi accident. It also addresses concomitant events associated with earthquakes, such as tsunamis. The revision provides a clearer separation between the process for assessing the seismic hazards at a specific nuclear installation site and the process for defining the related basis for design and safety assessment of the nuclear installation. Thus, it bridges gaps and avoids undue overlap of the two processes, which correspond to and are performed at different stages of siting of the nuclear installation.

Explaining the principles that underlie strong ground motion simulation, this publication describes various methods for simulating strong ground motions, and presents some examples of strong ground motion simulations using fault rupture modelling. The detailed guidelines and practical tools presented in this Safety Report will be of value to researchers, operating organizations, regulatory bodies, vendors and technical support organizations in the areas of seismic hazard evaluation of nuclear installations. The information provided will also be of great importance for seismic hazard assessments following the Fukushima Daiichi nuclear power plant accident.

"This Safety Guide supplements the Safety Requirements publication Safety of Fuel Cycle Facilities, and addresses all the stages in the life cycle of uranium fuel fabrication facilities (UFFFs), with emphasis being placed on design and operation. It describes the actions, conditions and procedures for meeting safety requirements and deals specifically with the handling, processing and storage of low enriched uranium that has a 235U concentration of no more than 6%, derived from natural, highly enriched or reprocessed uranium. The publication is intended to be of use to designers, operating organizations and regulators to ensure the safety of UFFFs."--Provided by publisher.

This publication provides the state of the art and practices of paleoseismology, and supports Member States in the implementation of the provisions of IAEA Safety Standards Series No. SSG-9, Seismic Hazards in Site Evaluation for Nuclear Installations, in establishing the necessary earthquake database required for seismic hazard assessment/reassessment. Paleoseismology is strongly recommended to obtain information on past earthquakes for a sufficient long period and comes under the category of a pre-historical database. Moreover, there is a need to provide detailed guidelines to implement this recommendation in developing the comprehensive database. The publication will also support the needs of Member States to implement the provision of paleoseismology as a post Fukushima action.

This publication provides the state of the art and practices of paleoseismology, and supports Member States in the implementation of the provisions of IAEA Safety Standards Series No. SSG-9, Seismic Hazards in Site Evaluation for Nuclear Installations, in establishing the necessary earthquake database required for seismic hazard assessment/reassessment. Paleoseismology is strongly recommended to obtain information on past earthquakes for a sufficient long period and comes under the category of a pre-historical database. Moreover, there is a need to provide detailed guidelines to implement this recommendation in developing the comprehensive database. The publication will also support the needs of Member States to implement the provision of paleoseismology as a post Fukushima action.