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External Events Notification System


When an external event, such as an earthquake, tornado or tsunami, impacts a nuclear power plant (NPP), information is needed quickly to support accurate, real-time situation awareness, informed decision making and effective communication with IAEA senior management and staff. To address this need, the IAEA is developing and implementing an External Events Notification System (EENS).

The main objective of the EENS is to receive real-time data from international and national global networks, and especially, information on the occurrence of external events around the world that might affect NPP sites.

Nuclear ShakeCast - nuclearshakecast.iaea.org

The IAEA International Seismic Safety Centre (ISSC) is developing and implementing the Nuclear ShakeCast System for discovery, processing, and notification of real-time ground shaking information at NPP sites. Nuclear ShakeCast is a situation awareness, post-earthquake application that automatically retrieves earthquake shaking data from the U.S. Geological Survey (USGS) Global ShakeMap. Nuclear ShakeCast is capable of comparing intensity measures against the site design basis of an NPP, sending notifications of potential damage to responsible parties at the IAEA and generating NPP damage assessment maps and other web-based products for IAEA communication purposes. The first version of the Nuclear ShakeCast system has been running since November 2010 at the IAEA in Vienna in support of the operations of the External Events Notification System.

Automated Nuclear ShakeCast Summary Report

For example, the automated Nuclear ShakeCast report: (i) summarizes relevant seismic data of NPP sites and their vulnerability, (ii) charts significant historic earthquakes in the region and their impact at the sites and (iii) relays information provided by individual web users on the "Did you feel it?" and "Prompt Assessment of Global Earthquakes for Response" web platforms of the USGS.

Tsunami Forecasting System (currently in development)

The Real-time Tsunami Forecasting (TsunamiCast) system combines state of the art modelling and measuring technology to provide real-time tsunami forecasts. The primary goal of the system is to combine real-time seismic and sea level data with numerical models to produce efficient tsunami forecasts of wave arrival times, heights and inundation. The accuracy rate of the IAEA Tsunami Forecasting System is planned to be close to 80%. Prediction accuracy will depend on the availability of high resolution bathymetric data at NPP sites. The IAEA works in cooperation with the United States National Oceanic and Atmospheric Administration to design and put into operation the Real-Time Tsunami Forecasting system.

Responsible/Contact: International Seismic Safety Centre | Last update: 3 June 2011