Timeline of the Fukushima Daini nuclear accidents: Difference between revisions
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#REDIRECT[[Fukushima Daini Nuclear Power Plant]] |
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{{Use dmy dates|date=March 2011}} |
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{{See also|Timeline of the Fukushima Daiichi nuclear disaster|Fukushima Daini Nuclear Power Plant|2011 Japanese nuclear accidents}} |
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The [[Fukushima Daini Nuclear Power Plant#2011 earthquake and tsunami|Fukushima II nuclear accidents]] occurred after the 9.0 magnitude [[2011 Tōhoku earthquake and tsunami]] on 11 March. This offshore [[earthquake]] near the island of [[Honshu Island|Honshu]]<ref>{{cite web|url=http://earthquake.usgs.gov/earthquakes/eqinthenews/2011/usc0001xgp/ |title=Magnitude 9.0 - NEAR THE EAST COAST OF HONSHU, JAPAN |publisher=Earthquake.usgs.gov |date= |accessdate=17 March 2011}}</ref> produced a large [[tsunami]] in Japan, and a tsunami warning for over 20 countries. The earthquake triggered the [[scram|shut down]] all four of the reactors at the [[Fukushima Daini Nuclear Power Plant]] and limited problems. By contrast, {{convert|11.5|km|mi}} away at the [[Fukushima Daiichi Nuclear Power Plant]], one of the worst nuclear accidents in history unfolded. |
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==Timeline== |
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Times are given in [[Japan Standard Time]] (JST), unless noted, which is [[UTC+09:00|UTC plus nine hours]]. |
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===Friday, 11 March=== |
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; 14:46: A [[2011 Sendai earthquake and tsunami|9.0 magnitude earthquake]] strikes off the coast of [[Honshu Island]] at a depth of about {{convert|24|km|mi}}. |
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; ??:??: Tsunami. |
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; 16:00: The [[Nuclear and Industrial Safety Agency]] of Japan (NISA) initiates an emergency headquarters in an attempt to gather information on the 55 nuclear reactors in Japan.<ref name="FNAref2">{{cite news | url=http://www.bbc.co.uk/news/science-environment-12722719 | title=Timeline: Japan power plant crisis | accessdate=15 March 2011 | date=13 March 2011 | work=BBC News}}</ref> There is no report that radiation was detected outside plant borders.<ref name="JAIF_earthquake_2">{{cite web|title=Earthquake Report 2|url=http://www.jaif.or.jp/english/aij/member/2011/2011-03-11earthquake2.pdf|publisher=JAIF|date=11 March 2011}}</ref> |
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===Saturday, 12 March=== |
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[[Image:Fukushima accidents overview map.svg|thumb|328px|right|Overview map showing evacuation and other zone progression and selected radiation levels.]] |
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; 04:30: Officials declare a heightened state of alert for Fukushima II and a state of nuclear emergency for Fukushima I.<ref name="IAEA-Tsunami-update-01" /> |
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; 15:30: Evacuation of residents within 3 km of Fukushima II and within 10 km of Fukushima I are underway.<ref name="IAEA-Tsunami-update-01" /> |
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; 21:40: The evacuation zone around Fukushima I is extended to 20 km, while the evacuation zone around Fukushima II is extended to 10 km.<ref name="IAEA-Tsunami-update-01">{{cite web|url=http://www.iaea.org/newscenter/news/tsunamiupdate01.html|title=IAEA Update on Japan Earthquake|publisher=IAEA|date=March 2011}}</ref> |
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===Sunday, 13 March=== |
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; 10:35: Fukushima II Unit 3 is confirmed as shutdown, cold and safe.<ref name="IAEA-Tsunami-update-01" /> |
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: At Fukushima II, one worker is confirmed to have died in a crane accident, with four others injured.<ref name="IAEA-Tsunami-update-01" /> Fukushima II Units 1, 2, and 4 were being powered by offsite power.<ref name="IAEA-Tsunami-update-01" /> |
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===Monday, 14 March=== |
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; 13:15: Fukushima II Unit 1 cooling system has been restored, with work continuing on Units 2 and 4.<ref name="IAEA-Tsunami-update-01" /> |
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===Tuesday, 15 March=== |
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; 11:35: At Fukushima II all units (1, 2, 3, and 4) reached cold shutdown. |
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===Wednesday, 16 March=== |
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; 19:50: The radiation level at Fukushima II power station (10km south of Fukushima I) is measured at 28.6 µSv/hour. [http://www.jaif.or.jp/english/news_images/pdf/ENGNEWS01_1300322727P.pdf ref] |
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===Wednesday, 30 March=== |
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Smoke escaped from the Fukushima II nuclear plant. The smoke was being emitted from equipment which supplies power to a motor pump that collects outdoor water and stopped after workers turned off the motor.<ref>http://www3.nhk.or.jp/daily/english/30_42.html Smoke from Fukushima Daini nuclear plant</ref> |
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A sound truck driven by members of an [[Uyoku dantai]] group deliberately crashed through the front gate to the plant, then drove around the premises for 10 minutes before being stopped. The truck's occupants were arrested and required nuclear decontamination.<ref>''[[Mainichi Shimbun]]'', "Vehicle tries to enter Fukushima Daiichi plant, breaks into Daini plant", 1 April 2011.</ref> |
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===Saturday, 2 April=== |
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All four reactors of Fukushima II confirmed to be in cold shutdown and should remain that way as long as nothing disrupts the cooling.<ref>{{Cite web|url=http://allthingsnuclear.org/post/4283747180/3-week-update-on-japans-nuclear-crisis |title=3 Week Update on Japan's Nuclear Crisis |date=April 2, 2011 |accessdate=April 2, 2011}}</ref> |
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==See also== |
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* [[2011 Japanese nuclear accidents]] |
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* [[Fukushima Daiichi nuclear disaster]] |
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* [[2011 Tōhoku earthquake and tsunami]] |
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* [[List of civilian nuclear incidents#2010s|List of civilian nuclear incidents (2010s)]] |
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* [[Lists of nuclear disasters and radioactive incidents]] |
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* [[Nuclear safety]] |
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==References== |
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{{reflist|2}} |
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==External links== |
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* [http://www.tepco.co.jp/en/press/corp-com/release/index-e.html TEPCO News Releases], [[Tokyo Electric Power Company]] |
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* TEPCO near real-time radiation sensor data in [http://www.tepco.co.jp/en/nu/monitoring/index-e.html English] and [http://www.tepco.co.jp/nu/monitoring/ Japanese]; [http://blog.michna.com/node/422 brief instructions] for English-speaking readers on how to interpret the Japanese table data |
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* [http://www.nisa.meti.go.jp/english/ NISA Information update], [[Nuclear and Industrial Safety Agency]], the nuclear safety authority of Japan |
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* [http://www.jaif.or.jp/english/ JAIF Information update, Japan Atomic Industrial Forum] |
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* [http://www.jaea.go.jp/english/ JAEA Information update], [[Japan Atomic Energy Agency]] |
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* [http://www.iaea.org/newscenter/news/tsunamiupdate01.html IAEA Update on Japan Earthquake], [[International Atomic Energy Agency]] |
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* [http://xkcd.com/radiation/ Japanese Nuclear Emergency: EPA's Radiation Air Monitoring] |
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{{2011 Tōhoku earthquake and tsunami}} |
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[[Category:2011 Japanese nuclear incidents and accidents|Fukushima nuclear accidents, Timeline]] |
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[[Category:Fukushima Prefecture]] |
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[[Category:Timelines of recent events]] |
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[[Category:Graphical timelines]] |
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[[Category:2011 earthquakes]] |
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[[Category:Japan-related lists]] |
Latest revision as of 19:25, 1 March 2012
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