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Onagawa nuke plant suffers jolt greater than designed in aftershock

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nadinbrzezinski Donating Member (1000+ posts) Send PM | Profile | Ignore Wed Apr-13-11 11:15 PM
Original message
Onagawa nuke plant suffers jolt greater than designed in aftershock
TOKYO, April 14, Kyodo

The No. 1 reactor of the Onagawa nuclear power plant in Miyagi Prefecture on April 7 sustained a jolt greater than what it was designed to withstand during a strong aftershock from the powerful March 11 earthquake, according to nuclear safety officials.

The finding raises further doubts about the viability of the assumed quake resistance at the Tohoku Electric Power Co. complex, even though it had been shut down safely after the deadly quake last month.

The Nuclear and Industrial Safety Agency has instructed the regional utility serving northeastern Japan to analyze the impact of such a jolt on key facilities at the three-reactor plant, the officials said.

During the aftershock, the biggest after March 11, measuring upper 6 in Miyagi on the Japanese seismic scale of 7, a seismometer at the building housing the No. 1 reactor registered a quake acceleration of 476.3 gal vertically, against the 451 gal assumed for the facility.

http://english.kyodonews.jp/news/2011/04/85360.html
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Lugnut Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Apr-14-11 12:22 AM
Response to Original message
1. Why would anybody un-rec this?
WTF!
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Name removed Donating Member (0 posts) Send PM | Profile | Ignore Thu Apr-14-11 06:01 AM
Response to Reply #1
4. Deleted message
Message removed by moderator. Click here to review the message board rules.
 
Hatchling Donating Member (968 posts) Send PM | Profile | Ignore Thu Apr-14-11 01:56 AM
Response to Original message
2. After the 7.1
Wasn't this the one where the water sloshe out of the spent fuel tank>
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nadinbrzezinski Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Apr-14-11 11:28 AM
Response to Reply #2
5. Yes
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marions ghost Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Apr-14-11 04:33 AM
Response to Original message
3. if they don't learn from Fukushima
when are they going to? Tohoku Electric should be doing some re-evaluating.
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hayu_lol Donating Member (1000+ posts) Send PM | Profile | Ignore Thu Apr-14-11 11:35 AM
Response to Reply #3
6. You barely mention that the Tohoku plant shut down automatically...
during that aftershock...as it was designed to do.

Most things that are, that could be harmful are overengineered for safety. This was amply demonstrated at Tohoku.
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marions ghost Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Apr-15-11 10:58 AM
Response to Reply #6
7. That plant could be just as messed up
by an earthquake close to it as Fukushima is now.

Fukushima "shut down" also...and was overengineered for safety.

What's ur point? :shrug:

Tohoku should not be re-evaluating everything?
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