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Reactor no.1
Reactor no.2
Reactor no.3
Reactor no.4
The observations from the Tepco webcam (cached since 5am March 11th)
Sprayings to the spent fuel pools * Anti-dust sprayings * Fukushima Images
Fukushima reactor no.3 monitoring pressure/temperature data
For more recent data from Tepco, go here
Time RP(A) RP(B/C) D/W S/C FNT BHT WL(A) WL(B) DW R/H Ref
MPa abs MPa abs MPa abs MPa abs gr.C gr.C meter meter gr.C
11:00, May 16th 0.010 0.010 0.102 0.192 143.4 133.2 -2.00 -2.30 170.8/170.3 Tepco
05:00, May 16th 0.012 0.014 0.103 0.191 141.3 136.2 -2.00 -2.30 196.8/168.3 Tepco
11:00, May 15th 0.012 0.014 0.102 0.189 141.1 139.0 -1.95 -2.30 201.4/196.2 Tepco
05:00, May 15th 0.016 0.016 0.102 0.189 139.8 136.5 -1.90 -2.25 241.1/197.5 Tepco
11:00, May 14th 0.016 0.012 0.101 0.186 164.8 147.1 -1.80 -2.25 183.5/137.1 Tepco
05:00, May 14th 0.010 0.010 0.101 0.185 154.9 148.1 -1.80 -2.25 171.8/125.3 Tepco
11:00, May 13th 0.012 0.010 0.100 0.184 155.4 142.7 -1.80 -2.25 176.8/127.8 Tepco
05:00, May 13th 0.010 0.007 0.100 0.183 170.5 145.7 -1.80 -1.90 179.9/130.5 Tepco
11:00, May 12th 0.014 0.005 0.103 0.185 189.2 149.0 -1.70 -1.95 197.7/133.9 Tepco
05:00, May 12th 0.012 0.005 0.102 0.184 215.9 150.2 -1.75 -1.95 199.6/136.1 Tepco
11:00, May 11th 0.020 0.011 0.102 0.184 220.3 149.4 -1.75 -2.10 202.9/135.6 Tepco
05:00, May 11th 0.020 0.006 0.102 0.184 215.3 152.4 -1.75 -2.10 202.6/142.6 Tepco
11:00, May 10th 0.022 0.018 0.101 0.184 214.5 151.9 -1.80 -2.10 205.1/144.8 Tepco
05:00, May 10th 0.022 0.016 0.101 0.183 192.7 150.6 -1.80 -2.10 205.5/143.2 Tepco
11:00, May 9th 0.020 0.010 0.103 0.184 216.4 154.3 -1.90 -2.10 209.7/147.4 Tepco
05:00, May 9th 0.016 0.010 0.102 0.184 210.4 153.0 -2.10 -2.15 209.7/154.5 Tepco
11:00, May 8th N/A N/A N/A N/A 206.2 151.3 N/A N/A 207.3/157.7 Tepco
05:00, May 8th 0.016 0.012 0.102 0.183 202.1 151.9 -2.10 -2.15 208.6/157.6 Tepco
11:00, May 7th 0.022 0.010 0.103 0.183 163.2 150.3 -2.05 -2.15 206.0/153.0 Tepco
05:00, May 7th 0.020 0.010 0.104 0.184 180.2 149.6 -2.05 -2.15 198.5/149.5 Tepco
11:00, May 6th 0.022 0.010 0.104 0.184 163.5 147.4 -2.10 -2.20 243.1/137.1 Tepco
05:00, May 6th 0.022 0.012 0.105 0.183 162.0 146.8 -2.00 -2.15 238.3/131.9 Tepco
11:00, May 5th 0.027 0.010 0.104 0.182 156.6 143.5 -2.05 -2.20 228.1/117.7 Tepco
05:00, May 5th 0.024 0.012 0.104 0.182 144.0 142.7 -2.05 -2.20 222.2/119.6 Tepco
11:00, May 4th 0.024 0.010 0.103 0.180 128.5 140.0 -1.85 -2.20 213.1/111.2 Tepco
05:00, May 4th 0.033 0.012 0.103 0.180 122.6 138.6 -1.85 -2.25 194.2/103.5 METI125
11:00, May 3rd 0.031 0.012 0.103 0.180 116.6 135.1 -1.85 -2.25 205.5/100.5 METI124
05:00, May 3rd 0.033 0.012 0.104 0.181 116.6 128.5 -1.85 -2.25 202.2/106.0 Tepco
11:00, May 2nd 0.037 0.012 0.102 0.179 100.8 125.3 -1.85 -2.25 189.0/108.3 Tepco
05:00, May 2nd 0.037 0.012 0.102 0.179 99.2 123.6 -1.85 -2.25 188.1/100.4 METI123
11:00, May 1st 0.033 0.012 0.103 0.179 90.8 118.4 -1.85 -2.25 138.7/101.7 METI122
05:00, May 1st 0.035 0.012 0.103 0.180 93.7 116.5 -1.85 -2.25 137.3/101.7 Tepco
05:00, April 30th 0.035 0.010 0.104 0.180 83.6 113.1 -1.85 -2.25 125.3/101.2 METI121
11:00, April 29th 0.041 0.010 0.103 0.180 80.6 112.9 -1.85 -2.25 127.4/ 97.2 METI120
05:00, April 28th 0.046 0.012 0.102 0.178 86.0 109.5 -1.85 -2.25 124.7/102.1 METI118
05:00, April 27th 0.048 0.012 0.103 0.179 72.0 110.7 -1.85 -2.25 121.7/101.9 METI116
05:00, April 26th 0.046 0.014 0.104 0.179 67.9 110.4 -1.80 -2.25 117.9/ 67.3 METI115
23:00, April 25th 0.046 0.010 0.104 0.179 84.9 109.8 -1.80 -2.25 103.1/ 64.5 METI114
06:00, April 25th 0.048 0.012 0.104 0.179 72.5 109.3 -1.85 -2.25 122.5/ 70.2 METI113
00:00, April 25th 0.046 0.012 0.104 0.179 74.6 110.8 -1.85 -2.25 124.3/ 67.8 METI112
12:00, April 24th 0.050 0.010 0.103 0.178 65.5 110.6 -1.85 -2.25 126.6/ 65.2 METI111
12:00, April 23rd 0.052 0.014 0.104 0.178 85.7 108.6 -1.85 -2.25 METI110
00:00, April 23rd 0.048 0.014 0.105 0.179 81.7 109.9 -1.85 -2.25 METI109
12:00, April 22nd 0.052 0.012 0.105 0.178 92.4 111.6 -1.85 -2.25 METI108
06:00, April 22nd 0.054 0.014 0.106 0.178 93.3 110.4 -1.85 -2.25 METI107
12:00, April 21st 0.058 0.014 0.105 0.177 104.0 110.4 -1.85 -2.25 METI106
06:00, April 21st 0.058 0.016 0.106 0.177 101.6 109.4 -1.85 -2.25 METI105
12:00, April 20th 0.058 0.012 0.105 0.174 100.2 107.5 -1.85 -2.25 METI104
00:02, April 20th 0.063 0.014 0.104 0.172 98.5 109.5 -1.85 -2.25 METI103
12:00, April 19th 0.061 0.016 0.104 0.172 101.1 109.8 -1.85 -2.25 METI102
06:00, April 19th 0.067 0.016 0.104 0.172 102.2 110.3 -1.80 -2.25 METI101
13:45, April 18th 0.067 0.020 0.105 0.170 101.5 112.7 -1.80 -2.25 METI100 temp time 13:10
06:00, April 18th 0.067 0.020 0.105 0.170 99.9 114.3 -1.80 -2.25 METI99
06:00, April 17th 0.071 0.018 0.105 0.168 90.7 121.7 -1.80 -2.25 METI98
12:00, April 16th 0.078 0.016 0.103 0.165 89.2 119.6 -1.80 -2.25 METI97
06:00, April 16th 0.071 0.016 0.104 0.166 91.1 121.3 -1.80 -2.25 METI96
12:00, April 15th 0.080 0.016 0.104 0.166 89.6 121.5 -1.80 -2.25 METI95
00:00, April 15th 0.082 0.016 0.104 0.166 91.2 121.1 -1.80 -2.25 METI94
06:05, April 14th 0.084 0.018 0.105 0.167 89.3 122.6 -1.80 -2.25 METI93
00:00, April 14th 0.084 0.018 0.105 0.168 90.4 122.0 -1.75 -2.25 METI92
12:10, April 13th 0.078 0.018 0.104 0.168 92.2 117.3 -1.75 -2.20 METI91
22:10, April 12th 0.083 0.015 0.106 N/A 96.0 119.3 -1.85 -2.25 METI90
12:00, April 12th 0.083 0.015 0.106 0.169 N/A N/A -1.85 -2.25 METI89
06:00, April 12th 0.082 0.022 0.105 N/A 105.4 115.6 -1.85 -2.25 METI88
18:11, April 11th --injection of water to core resumed--- -----------------------------
17:56, April 11th --injection of water to core is stopped -----------------------------
17:16, April 11th --M7.1 earthquake, epicenter 80 km south of Fukushima, tsunami warning
12:00, April 11th 0.084 0.018 0.104 0.170 97.0 N/A -1.90 -2.25 METI87
06:00, April 11th 0.084 0.020 0.103 N/A 97.7 N/A -1.90 -2.25 METI86
00:00, April 11th 0.084 0.018 0.105 0.170 97.7 110.2 -1.90 -2.25 METI86
06:00, April 10th 0.092 0.024 0.106 0.172 91.7 110.8 -1.90 -2.25 METI84
12:25, April 09th 0.097 0.020 0.105 0.172 96.6 109.2 -1.70 -2.25 METI83
00:00, April 09th 0.099 0.016 0.105 0.173 99.2 107.5 -1.95 -2.30 METI82
12:00, April 08th 0.097 0.022 0.105 0.172 88.8 110.7 -1.85 -2.25 METI81
01:30, April 08th 0.099 0.020 0.106 0.173 88.2 110.8 -2.00 -2.25 METI80
12:00, April 07th 0.101 0.020 0.106 0.172 88.3 112.3 -1.90 -2.25 METI79
06:00, April 07th 0.099 0.022 0.107 0.173 83.4 115.8 -1.80 -2.25 METI78
12:30, April 06th 0.106 0.015 0.107 0.173 78.8 115.0 -1.80 -2.25 METI77
00:00, April 06th 0.110 0.020 0.107 0.173 84.4 114.7 -1.85 -2.25 METI76
10:20, April 05th 0.106 0.018 0.107 0.173 84.7 114.1 -1.85 -2.25 METI75
05:40, April 05th 0.112 0.020 0.108 N/A 84.7 113.7 -1.85 -2.25 METI74
09:30, April 04th 0.106 0.018 0.107 0.176 90.0 113.7 -1.75 -2.25 METI73
03:30, April 04th 0.108 0.020 0.107 0.175 89.8 114.1 -1.80 -2.25 METI73
10:30, April 03rd 0.112 0.018 0.107 0.175 90.6 114.3 -1.85 -2.25 METI71
02:30, April 03rd 0.112 0.013 0.107 0.175 90.6 115.9 -1.85 -2.25 METI70
12:10, April 02nd 0.115 0.006 0.105 0.175 92.3 117.8 -1.85 -2.25 METI69
01:30, April 02nd 0.126 0.015 0.106 0.175 90.8 119.4 -1.85 -2.25 METI68
11:45, April 01st 0.117 0.013 0.107 0.176 90.2 117.8 -1.90 -2.25 METI67
05:45, April 01st 0.119 0.015 0.107 0.176 92.6 116.3 -1.90 -2.25 N66
00:45, April 01st 0.117 0.015 0.107 N/A N/A N/A -1.90 -2.25 J53
09:40, March 31st 0.117 0.09 0.107 0.176 88.6 114.4 -1.85 -2.25 N65
04:40, March 31st 0.117 0.009 0.107 0.176 88.6 114.4 -1.85 -2.25 METI
04:40, March 31st 0.121 0.011 0.107 0.176 88.5 114.2 -1.90 -2.30 J50/METI
13:00, March 30th 0.119 0.006 0.107 0.178 76.7 115.4 -1.85 -2.25 J49
03:50, March 30th 0.124 0.009 0.107 0.178 75.3 116.0 -1.85 -2.25 N62
23:45, March 29th 0.130 0.006 0.107 N/A N/A N/A -1.90 -2.30 J47
12:00, March 29th 0.130 0.007 0.108 0.180 62.2 121.1 -1.85 -2.25 N61
06:00, March 29th 0.135 0.011 0.109 0.179 61.5 120.9 -1.90 -2.30 N60
04:45, March 29th 0.135 0.011 0.109 0.179 61.5 120.9 -1.90 -2.30 N60
00:00, March 29th 0.130 0.009 0.107 N/A N/A N/A -1.85 -2.25
10:30, March 28th 0.126 0.006 0.108 0.179 41.9 124.4 -1.85 -2.25 N59
05:30, March 28th 0.130 0.011 0.108 0.179 38.0 123.0 -1.90 -2.30 N58
10:10, March 27th 0.133 0.002 0.108 0.181 13.6 121.6 -1.90 -2.30 N57
04:45, March 27th 0.130 0.002 0.107 0.180 -1.7 106.8 -1.85 -2.30 N56
11:15, March 26th 0.139 0.000 0.107 0.184 33.7 100.4 -1.85 -2.30
10:00, March 26th 0.139 0.000 0.107 0.184 37.6 106.1 -1.80 -2.30
05:05, March 26th 0.139 0.000 0.107 0.185 26.1 102.5 -1.85 -2.30
16:10, March 25th 0.137 0.002 0.108 0.190 -33.4 111.0 -1.90 -2.30
06:10, March 25th 0.139 0.004 0.107 0.194 42.8 111.6 -1.90 -2.30
18:00, March 24th 0.139 0.000 0.107 0.200 65.6 155.7 -1.85 -2.30
10:20, March 24th 0.137 0.004 0.107 0.199 14.1 185.5 -1.90 -2.30
02:40, March 24th 0.142 -0.003 dscale dscale 80.7 185.4 -1.80 -2.30
09:10, March 23rd 0.135 -0.003 0.100 dscale 304.8 225.5 -1.80 -2.30
04:00, March 23rd 0.137 0.000 0.100 dscale 279 253 -1.80 -2.30
10:35, March 22nd 0.137 0.000 0.100 dscale N/A N/A -1.90 -2.30
05:30, March 22nd 0.139 0.000 0.100 dscale N/A N/A -1.58 -2.30
14:55, March 21st 0.146 0.013 0.110 dscale N/A N/A -1.55 -2.03
12:15, March 21st 0.144 0.018 0.160 dscale 133.4 146.8 -1.60 -2.00
08:00, March 21st N/A N/A N/A N/A 155.3 139.3 N/A N/A PC
04:00, March 21st 0.315 0.074 0.160 dscale 170.4 223.6 N/A N/A PC
02:30, March 21st N/A N/A N/A N/A 171 214 N/A N/A PC
01:45, March 21st N/A N/A N/A N/A N/A 217 N/A N/A PC
01:25, March 21st N/A N/A N/A N/A 175 219.8 N/A N/A PC
20:00, March 20th N/A N/A N/A N/A 90.3 198.2 N/A N/A PC
19:40, March 20th N/A N/A N/A N/A 95.4 198.3 N/A N/A PC
16:00, March 20th 0.263 0.220 0.290 dscale 135 216.1 N/A N/A PC
15:35, March 20th N/A N/A N/A N/A 138.8 217.7 N/A N/A PC
15:00, March 20th N/A N/A N/A N/A 139.4 220 N/A N/A PC
11:00, March 20th 0.290 0.250 0.310 uscale 210 260 N/A N/A PC
05:00, March 20th 0.317 0.281 0.340 dscale N/A N/A
04:20, March 20th N/A N/A N/A N/A 300 300 N/A N/A PC
03:50, March 20th N/A N/A N/A N/A 303 301 N/A N/A PC
01:00, March 20th N/A N/A N/A N/A 326 N/A N/A N/A PC
00:50, March 20th N/A N/A N/A N/A 329 N/A N/A N/A PC
00:25, March 20th N/A N/A N/A N/A 334 323 N/A N/A PC
17:25, March 19th 0.187 0.051 0.210 dscale N/A N/A
17:00, March 19th N/A N/A N/A N/A 375 333 N/A N/A PC
11:15, March 19th 0.078 0.078 0.160 dscale N/A N/A -1.95 -2.30
08:30, March 19th N/A N/A N/A N/A 359 350 N/A N/A PC
08:20, March 19th N/A N/A N/A N/A 360 352 N/A N/A PC
06:30, March 19th N/A N/A N/A N/A 366 328 N/A N/A PC
06:10, March 19th 0.146 0.106 0.185 dscale N/A N/A
21:10, March 18th 0.085 0.117 0.160 dscale N/A N/A
12:35, March 18th 0.083 0.101 0.155 dscale N/A N/A -2.00 -2.30
02:45, March 18th 0.096 0.115 0.155 dscale N/A N/A
11:30, March 17th 0.115 0.124 0.190 dscale N/A N/A
07:00, March 17th N/A 0.135 0.200 0.220 N/A N/A N/A -2.30
04:00, March 17th N/A 0.133 0.200 dscale N/A N/A N/A -2.30
03:20, March 17th 0.124 0.133 0.200 dscale N/A N/A -1.95 -2.30
00:07, March 17th N/A 0.119 0.185 dscale N/A N/A N/A -2.30
14:00, March 16th N/A 0.186 0.230 dscale N/A N/A N/A -2.30
12:40, March 16th 0.160 0.166 0.230 N/A N/A N/A -1.90 -2.30
10:00, March 16th N/A 0.186 0.280 dscale N/A N/A N/A -2.30
09:55, March 16th 0.189 N/A N/A N/A N/A N/A -1.9 N/A FEPC
09:20, March 16th N/A 0.211 0.275 dscale N/A N/A N/A -2.30
07:00, March 16th N/A 0.225 0.295 dscale N/A N/A N/A -2.30
06:00, March 16th N/A 0.259 0.320 dscale N/A N/A N/A -2.30
04:00, March 16th N/A 0.259 0.320 dscale N/A N/A N/A -2.30
01:35, March 16th N/A 0.281 0.320 dscale N/A N/A N/A -2.30
21:05, March 15th N/A 0.281 0.335 dscale N/A N/A N/A -2.30
18:43, March 15th 0.270 0.280 0.355 N/A N/A N/A -1.90 -2.30
16:10, March 15th N/A 0.341 0.415 dscale N/A N/A N/A -2.30
15:30, March 15th N/A 0.352 0.420 N/A N/A N/A N/A -2.30
13:00, March 15th N/A 0.352 0.420 dscale N/A N/A N/A -2.30
12:38, March 15th -injection of seawater suspended -----------------------------
11:42, March 15th N/A 0.344 0.415 N/A N/A N/A -1.90 -2.30
06:28, March 15th N/A 0.345 0.415 dscale N/A N/A N/A -2.30
05:00, March 15th N/A 0.345 0.415 dscale N/A N/A N/A -2.30
04:00, March 15th N/A 0.350 0.415 dscale N/A N/A N/A -2.30
03:00, March 15th N/A 0.343 0.410 dscale N/A N/A N/A -2.30
02:00, March 15th N/A 0.335 0.400 dscale N/A N/A N/A -2.30
01:00, March 15th N/A 0.324 0.400 dscale N/A N/A N/A -2.30
00:00, March 15th N/A 0.311 0.380 dscale N/A N/A N/A -2.30
23:00, March 14th N/A 0.297 0.370 dscale N/A N/A N/A -2.30
22:40, March 14th N/A 0.290 0.360 dscale N/A N/A N/A -2.30
22:00, March 14th --approximate time for a fire at unit 3 or 4 -----------------
21:04, March 14th N/A 0.270 0.360 dscale N/A N/A N/A -2.30
20:03, March 14th N/A 0.284 0.360 dscale N/A N/A N/A -2.30
19:30, March 14th N/A 0.283 0.335 0.500 N/A N/A -1.90 -2.30
19:00, March 14th N/A 0.284 0.360 dscale N/A N/A N/A -2.30
17:00, March 14th N/A 0.362 0.440 0.440 N/A N/A N/A -2.20
16:00. March 14th - webcam shows smoke coming from unit 3-----------------------
16:00, March 14th N/A 0.409 0.480 0.475 N/A N/A N/A -2.20
15:00, March 14th N/A 0.399 0.480 0.470 N/A N/A N/A -2.20
14:00, March 14th N/A 0.382 0.460 0.450 N/A N/A N/A -2.20
13:00, March 14th N/A 0.352 0.430 0.430 N/A N/A N/A -2.20
12:00, March 14th N/A 0.292 0.380 0.380 N/A N/A N/A -2.20
11:30, March 14th N/A 0.291 0.360 0.380 N/A N/A N/A -1.80
11:25, March 14th N/A 0.292 0.360 0.380 N/A N/A N/A -1.80
11:15, March 14th N/A 0.316 0.380 0.390 N/A N/A N/A -1.60
11:01, March 14th ----------------- explosion in reactor building---------------
09:05, March 14th N/A N/A 0.450 N/A N/A N/A N/A N/A
09:00, March 14th N/A 0.409 0.490 0.475 N/A N/A N/A -1.50
08:00, March 14th N/A 0.421 0.500 0.490 N/A N/A N/A -1.00
06:50, March 14th N/A N/A 0.650 N/A N/A N/A N/A N/A
07:00, March 14th N/A 0.439 0.520 0.500 N/A N/A N/A -3.00
06:00, March 14th N/A 0.282 0.425 0.400 N/A N/A N/A dscale
05:00, March 14th N/A 0.282 0.365 0.345 N/A N/A N/A dscale
04:00, March 14th N/A 0.260 0.340 0.325 N/A N/A N/A -2.80
03:00, March 14th N/A 0.235 0.315 0.305 N/A N/A N/A -2.30
02:00, March 14th N/A 0.178 0.275 0.275 N/A N/A N/A -2.25
00:30, March 14th N/A 0.152 0.255 0.255 N/A N/A N/A -2.25
23:30, March 13th N/A 0.189 0.260 0.260 N/A N/A N/A -2.25
23:00, March 13th N/A 0.190 0.275 0.275 N/A N/A N/A -2.25
22:20, March 13th N/A N/A 0.295 0.295 N/A N/A N/A -2.25
22:05, March 13th N/A N/A 0.300 0.300 N/A N/A N/A -2.25
21:40, March 13th N/A N/A 0.320 0.320 N/A N/A N/A -2.20
21:15, March 13th N/A N/A 0.375 N/A N/A N/A N/A -2.20
21:00, March 13th N/A N/A 0.380 N/A N/A N/A N/A -2.20
21:00, March 13th N/A N/A 0.395 N/A N/A N/A N/A -2.20
20:55, March 13th N/A N/A 0.400 N/A N/A N/A N/A -2.20
20:50, March 13th N/A N/A 0.405 N/A N/A N/A N/A -2.20
20:45, March 13th N/A N/A 0.410 0.370 N/A N/A N/A -2.20
19:55, March 13th N/A 0.351 0.425 0.375 N/A N/A N/A -2.20
19:30, March 13th N/A 0.351 0.425 0.375 N/A N/A N/A -2.20
18:45, March 13th N/A 0.351 0.420 0.375 N/A N/A N/A -2.20
17:30, March 13th N/A 0.341 0.415 0.365 N/A N/A N/A -2.10
17:00, March 13th N/A 0.341 0.410 0.360 N/A N/A N/A -1.90
16:45, March 13th N/A 0.341 0.410 N/A N/A N/A N/A -1.90
16:15, March 13th N/A 0.291 0.380 0.310 N/A N/A N/A -2.00
16:00, March 13th N/A 0.281 0.350 0.300 N/A N/A N/A -2.00
15:00, March 13th N/A 0.191 0.260 0.210 N/A N/A N/A -2.00
14:10, March 13th N/A 0.181 0.235 0.185 N/A N/A N/A -2.20
14:00, March 13th -webcam shows vent from unit 3 exhaust stack,steam inland ----
14:00, March 13th -sea water injection is being attempted-----------------------
14:00, March 13th -safety relief valve has been opened manually-----------------
14;00, March 13th -followed by boric acid injection-----------------------------
13:00, March 13th N/A 0.291 0.300 0.250 N/A N/A N/A -2.00
13:00, March 13th -webcam shows vent from unit 3 exhaust stack,steam seawards --
12:40, March 13th N/A 0.551 0.480 0.480 N/A N/A N/A -1.40
11:55, March 13th N/A 0.221 N/A N/A N/A N/A N/A 1.00
11:25, March 13th N/A 0.211 0.280 0.230 N/A N/A N/A 0.00
10:55, March 13th N/A 0.201 0.270 0.220 N/A N/A N/A -1.20
10:35, March 13th N/A N/A 0.280 0.230 N/A N/A N/A -0.70
10:00, March 12th -webcam shows vent from unit 3 exhaust stack,steam seawards --
09:55, March 13th N/A 0.341 0.400 0.350 N/A N/A N/A 0.60
09:25, March 13th N/A 0.451 0.530 0.470 N/A N/A N/A 1.00
09:10, March 13th N/A 7.341 0.465 0.445 N/A N/A N/A 1.80
08:56, March 13th --radiation at site boundary exceeds limits-------------------
08:41, March 13th --venting procedure finished----------------------------------
08:20, March 13th N/A 7.341 0.465 0.445 N/A N/A N/A -3.25
08:00, March 13th N/A 7.371 0.465 0.445 N/A N/A N/A -3.00
05:10, March 13th ----HPCI System has automatically shut down ------------------
05:10, March 13th ----Re-activation of RCIC System attempted but failed --------
05:10, March 13th ----Unnable to confirm the level of water injection by ECCS---
02:44, March 11th ----Reactor isolation pumps stops, batteries empty -----------
20:00, March 12th ----cooling continues by HPCI---------------------------------
11:00, March 12th ---preparing to implement a measure to reduce the D/W pressure
00:00, March 12th --------- cooling is by RCIC--------------- -------------------------
15:41, March 11th ----------plant has lost all power , including emergency diesel------
14:42, March 11th 7.3 7.3 0.1 0.1 286 286 N/A >1 Normal op. param
14:42, March 11th -------------------earthquake, loss of offsite power-----------------
RP: Reactor pressure
D/W: Drywell pressure
S/C: Suppression chamber(wet-well) pressure
FNT: Feedwater nozzle temperature
BHT: Bottom head temperature
WL: Water level in reactor in meters, relative to fuel top
dscale: below pressure meter scale (for pressure, less than 0.100 MPa)
uscale: above pressure meter scale (for pressure, more than 0.400 MPa)
N/A: data not available
Data Source:Tepco
Reactor no 1
Reactor no 2
Reactor no 3