Woody has prepared two early reports on the Hokkaido Earthquake on 6 September 2018. … [Read more...] about Hokkaido Earthquake Analysis; Preliminary Report
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The Kumamoto Earthquake Investigation; A Preliminary Report
Download as PDF The preliminary report by Woody Epstein, Takanao Nishimoto, Koji Okumura, Sam Swan, and Peter Yanev. The material in this report is the sole property of the authors and their respective companies or institutions unless otherwise stated. Any reproduction or use of this material without their express permission is strictlyprohibited. … [Read more...] about The Kumamoto Earthquake Investigation; A Preliminary Report
Active Faults and Nuclear Power Plants
Download as PDF Feature Article for EoS Following the Fukushima disaster, most of Japan’s 50 nuclear power plants (NPPs) are closed down. After routine closures for planned maintenance outages, the government restricted the restart of plants until they could successfully pass “stress tests”, which were subsequently replaced by new safety criteria, issued this July by the new … [Read more...] about Active Faults and Nuclear Power Plants
A PRA Practioner looks at the Great East Japan Earthquake and Tsunami
Woody wrote this white paper for his sponsor at the Tokyo Inst. of Tech., Professor Ninokata, at the end of April, 2011. His analysis preceded those of the NRC, MIT, HSE, and the IAEA. Download the white paper as PDF … [Read more...] about A PRA Practioner looks at the Great East Japan Earthquake and Tsunami
What’s Wrong with the Fault-Tree Linking Approach for Complex PRA Models?
By Steven A Epstein and Donald Wakefield Download the full document as PDF Executive Summary Analysts using complex probabilistic risk assessment (PRA) models at nuclear power plants have two approaches from which to choose: Fault Tree Linking (FTL) or Large Event Tree Linking (ETL) methods. The choice of which method is utilized depends primarily on history (which method … [Read more...] about What’s Wrong with the Fault-Tree Linking Approach for Complex PRA Models?