Diablo Canyon Nuclear Power Plant: The WikiBook

Full title: Fukushima Aftermath: Diablo Nuclear Renaissance or Industry Meltdown?

A nuclear power plant on top of three major earthquake faults. Blueprints read backwards. Stuck valves on critical failsafe components.

The Diablo plant had a lot of people worried.

Then came Fukushima: 9.0 earthquake. Tragic monster tsunami. Thousands dead. And things went downhill from there.

The WikiBook About the Diablo Canyon Nuclear Power Plant: You Can Help to Edit Online!Edit

This Wikibook is the first of an anticipated series on specific nuclear power plants such as Diablo Canyon (Nuclear) Power Plant and the San Onofre Nuclear Generating Station, both of which are in California. They are offered in conjunction with a Wikiversity course entitled [California Government and Citizen Participation] and the Wikibook of the same name. All policies of Wikibooks and Wikiversity apply and you are invited to read but also to write copy and edit existing copy. If you are reading this online, please familiarize yourself with Wikibooks protocols by clicking on the links to the left. All content herein is subject to the CCL 2 license which means that it is free for re-use with attribution in accordance with the CCL 2 guidelines.

Introduction to the subject matterEdit

The nuclear incident at the Fukushima Diaichi nuclear station has sparked a renewed interest in evaluation of the risks posed by nuclear power plants worldwide, among them Diablo. (Some parties insist on referring to the plant as Diablo Canyon (Nuclear) Power Plant; consistent with our neutral point of view policy, we try to steer clear of that debate as much as possible, referring to the facility as "Diablo", the "plant" and so forth). As you can read in the Diablo Canyon Power Plant chapter, it was built in close proximity to numerous earthquake fault zones, and is a source of on-going, often heated, public policy debate.

According to Wikipedia, Diablo Canyon was originally designed to withstand a 6.75 magnitude earthquake, including the nearby San Andreas fault|San Andreas and Hosgri faults,[1] but was later upgraded to withstand a 7.5 magnitude quake.[2] Recent public disclosure of the existence of the Shoreline fault proximal to DC(N)PP has created renewed public interest in the current ongoing re-licensing[3] application of DCPP, including calls for a suspension of the licensing process until the seismic studies are complete.[4] Although the plant has redundant seismic monitoring and a safety system designed to shut it down promptly in the event of significant ground motion, there remains considerable public concern about safety.

A brief review of major nuclear accidentsEdit

Light water (LW) nuclear reactor constructionEdit

LW Reactor type:Boiling water reactor (Fukushima)Edit
Passive nuclear safetyEdit
Structure:Nuclear reactor coreEdit
Structure:Containment buildingEdit

The Devil Went Down to Fukushima...Edit

The earthquake from hell Part 1Edit

The nighmare continues: Part 2Edit

Tsunami horrorEdit

Japan's diabolical nuclear accidentEdit

Diablo Canyon Nuclear Power PlantEdit

Diablo Canyon Power Plant OverviewEdit

Pacific Gas and ElectricEdit

June 2011 NRC Safety ReportEdit

Overview of DCPP earthquake issuesEdit

Hosgri Fault
San Andreas Fault
Shoreline Fault

History of protest and policy debatesEdit

The Diablo controversy after FukushimaEdit

California respondersEdit

US Representative Lois CappsEdit

Sen. BoxerEdit


California Assemblyman BlakesleeEdit

National responders - overviewEdit

US Senator Bernie Sanders (D-Vt.)Edit

Post-Fukushima response by non-government organizationsEdit

Union of Concerned ScientistsEdit

Alliance for Nuclear Responsibility OverviewEdit

Action by A4NREdit

Mothers for PeaceEdit

Sierra ClubEdit


Nuclear Regulatory Commission


  1. "Energy: A Nuclear Horror". Time. February 9, 1976. http://www.time.com/time/magazine/article/0,9171,917988,00.html. Retrieved July 14, 2010. 
  2. David Sneed (August 9, 2011). "Diablo Canyon workshop to focus on earthquakes". The San Luis Obispo Tribune. http://www.sanluisobispo.com/2010/08/08/1244213/diablo-canyon-workshop-september.html. 
  3. John Upton (April 22, 2011). "PG&E Quietly Seeking Permission to Extend Diablo Canyon's License". The Bay Citizen. http://www.baycitizen.org/pge/story/pge-seeking-permission-extend-diablo/. 
  4. San Luis Board of Supervisors, Official Minutes; Santa Barbara Board of Supervisors, Official Minutes including but not limited to pending June 2, 2011 public hearing.

Online resourcesEdit

Audio linksEdit


  • The staff at the Nuclear Regulatory Commission have been very helpful at public forums at which they provided very learned answers to questions from the public.
  • Dr. Norm Abrahamson of the University of California at Santa Barbara was the keynote speaker at a forum in November 2010 in San Luis Obispo and provided an excellent encapsulation of earthquake related issues at DCPP.
  • Sandra S. Schulz and Robert E. Wallace authored material on the San Andreas Fault which was made available on a USGS dot-gov website.
  • David Weisman and Rochelle Becker are principals in the Alliance for Nuclear Responsibility and through their website and listserv made much information available which was not available through other sources.
  • Administrators at Wikibooks have gone beyond the call of duty and gave generously of their time correcting errors and providing state of the art software tools. Particularly patient and helpful have been the administrators logging in as Adrignola and the aptly named Quite Unusual.

Afterword: Was the Fukushima event an Incident, disaster, or accident?Edit

Appendix: ContributorsEdit

Attributions to material imported from Wikipedia are available by clicking History link. On certain pages, importing may have failed on numerous occasions. In those instances, every effort has been made to exceed the minimal CC-BY-SA 3.0 and GFDL licensing protocols.

Many people wrote Wikipedia articles which were imported to Wikibooks by Geof Bard with the aid of administrators Adrignola and Quite Unusual. Matisse and other users to be enumerated also provided assistance. The original introduction and many of the Wikipedia articles were written from scratch also by Geof. The article writers user names can be viewed by clicking View history. If you contribute and would like to be listed please add your name to this section.

Appendix: Future chaptersEdit

Other Fukushima Aftermath Series BooksEdit

Fukushima AftermathEdit

Fukushima Aftermath: Diablo Nuclear Redux?Edit

Fukushima Aftermath: Whither the Indian Point Nuke?Edit

Incident response and disaster preparedness at DCPP

Downwind health risks: fact or fiction?