In-Focus: Nuclear – Earthquake felt in Diablo Canyon control room – Fukushima upgrades continue at US nuclear sites

Fukushima upgrades continue at Byron nuclear power plant

“We did a lot of different walk downs for equipment to ensure reliability of things we had,” said Exelon Generation Byron Station representative Paul Dempsey. “We also purchased other kinds of equipment that we could move into areas if needed if we have some sort of loss of power event to the plant. Other things that we continue to work on in response to Fukushima event.”

“In response to the Fukushima event, we continue to do a lot of work here,” said Dempsey. “Certain kinds of walk throughs we do to check equipment.  Also looking at purchasing more equipment that we can have portable to bring onsite in case we would have like a loss of power event.”

Source: CBS 23 WFIR

Source: NBC 13 WREX

 

Three Mile Island shopping for additional pumps, chargers, and generators

Source: Businessweek

 

Earthquake felt in Diablo Canyon control room

The US Geological Survey says a 5.3 magnitude earthquake centered near King City hit just before midnight last night.  The USGS survey shows North San Luis Obispo County felt the strongest vibrations.

The earthquake was felt 90 miles away at the Diablo Canyon nuclear power plant where PG&E workers declared an unusual event at the plant.

“We did feel slight ground motions in the control room around midnight,” Blair Jones, PG&E spokesperson, said.  “Both units continue to operate safely and at 100% power. There were no impacts on our site.” Jones said.

In the heart of earthquake country, Diablo Canyon could potentially feel shakes from four different fault lines.

The design limits for Diablo Canyon buildings are based off of the potential earthquake from the nearby Hosgri fault, which lies only a few miles offshore, and are designed to withstand an earthquake with a magnitude of 7.5. Geologists say the Hosgri fault could produce an earthquake as strong as 7.5.

Another nearby fault called the ‘Shoreline fault’, is an offshore fault which was publicly identified in 2008.  Analysis from a 2011 on-site visit and available information indicates that earthquakes from the Shoreline fault could also potentially generate ground motion which would test Diablo Canyon’s existing design limits, the Nuclear Regulatory Commission said in its report.

PG&E is performing a $64 million seismic research project, which was mandated by the state legislature, and will be using three-dimensional seismic tests to further investigate the hazards posed by potential earthquakes near the plant.

Source: Bloomberg

Source: NBC 6 KSBY

Source: Reuters

 

Dominion to decommission Kewaunee nuclear station

Source: Sacramento Bee

 

Sharp contrast between Entergy’s confidence and state of New York’s skepticism of Indian Point safety systems

Source: New Jersey Newsroom

 

Fracking authorized one mile from Beaver Valley nuclear

Source: Times Online

 

Oconee flood risk underestimated

Source: Biz Journals

 

About author
Enformable is focused on providing critical information about energy related topics for readers around the world.The functional goal of the project is to provide a user-friendly public resource, complete with database of supporting research materials and data.Facebook Twitter
Read More About , , ,
1 comment on this postSubmit yours
  1. richardperrycolumbia@shaw.ca'

    After reading about many plants safety against earthquakes, I have become skeptical about their survival. The reason among at least 21 others is in the passing many plant’s safety they did not publish the results of horizontal movement tests during a earthquake. This all so shows that inspectors and safety committees requests are set aside to save money no matter how many die or get ill.

Submit your comment

Please enter your name

Your name is required

Please enter a valid email address

An email address is required

Please enter your message

*

Enformable © 2014 All Rights Reserved

More in Nuclear News
0121019at16_p
In-Focus: Japan – Japanese Ambassador says rice donations to Haiti are radiation free – DOE official says Japan should restart nuclear power plants

Japanese Ambassador says rice donations to Haiti are radiation free Source: Defend Haiti Vietnamese plans for nuclear power plant built by Russia and Japan put on hold due to concerns about safety of...

Close