# Last edited on 2011-04-23 14:54:01 by stolfi http://www.physicsforums.com/showthread.php?p=3262755 Re: Japan Earthquake: nuclear plants Below is the recorded sprayings to the spent fuel pool of unit 4 (data from Tepco press releases). The intensity of topping the pool appears to have increased lately. Similar data regarding the other SFPs can be found at: http://www.gyldengrisgaard.dk/fuku_d...sprayings.html SFP4: Concrete pump 23 April 2011 12:30-? Concrete pump 22 April 2011 17:52-23:53 Concrete pump 21 April 2011 17:14-21:20 Concrete pump 20 April 2011 17:08-20:31 Concrete pump 19 April 2011 10:17-11:35 Concrete pump 17 April 2011 17:39-21:22 Concrete pump 15 April 2011 14:30-18:29 Concrete pump 13 April 2011 00:30-06:57 Concrete pump 9 April 2011 17:07-19:24 Concrete pump 7 April 2011 18:23-19:40 Concrete pump 5 April 2011 17:35-18:22 Concrete pump 3 April 2011 17:14-22:16 Concrete pump 1 April 2011 08:28-14:14 Concrete pump 30 March 2011 14:04-18:33 Concrete pump 27 March 2011 16:55-19:25 Injection of seawater through FPCFS 25 March 2011 06:05-10:20 Concrete pump 25 March 2011 19:05-22:07 Concrete pump 24 March 2011 14:35-17:30 Concrete pump 23 March 2011 10:00-13:00 Concrete pump 22 March 2011 17:20-20:30 Water spray by the Self Defence Force 21 March 2011 06:37-08:41 Water spray by the Self Defence Force 20 March 2011 08:21-09:40 Water spray by the Self Defence Force 20 March 2011 18:45-19:45 Explosion at unit 4 15 March 2011 06:00 appr. Temperature in pool is 84 C 14 March 2011 04:08