6.9 M earthquake, 7.3 M earthquake, 7.4 M earthquake, dangers of nuclear, dust monitor, earthquake, environment, Fukushima, Fukushima corium, Fukushima Daiichi, Fukushima water, Ground Movement, IX Mercalli Scale, Japan, loss of cooling, Loss of Power Distribution Fukushima Site, Loss of power to distribution line, loss of site power, nuclear, nuclear accident, nuclear disaster, nuclear energy, nuclear industry, nuclear power, nuclear power plant, nuclear reactors, nuclear safety, nuclear waste, Peak Ground Acceleration, PGA, radiation monitor, radioactive waste, risk management, spent fuel pool, water
According to the Japan Meteorological Agency, the recent earthquake in Japan (05:59 JST, 22 Nov. 2016, Fukushima-Ken Oki) has been upgraded to a Magnitude of 7.4, with a depth of about 30 km. The location was Latitude 37.4N Longitude 141.6E. The earlier report was 7.3 Magnitude at 37.3 N and 141.6 E, with a 10 km depth.
The US government (USGS) initially reported a 7.3 Magnitude earthquake, located at 37.272 N and 141.644 E, 61 km ESE of Namie, Japan at 20.59.46 UTC (2016-11-21) or 05.59.46 JST (2016-11-22).
Very quickly they changed both the location and the magnitude of their report to a 6.9 Magnitude earthquake, 37 km ESE of Namie at 20.59.49 UTC (5.59.49 JST), 37.392°N 141.403°E, with a depth of 11.3 km. With a location, time and depth change one can but wonder if this is a different interpretation of the same earthquake or is a large quake and one or more large aftershocks.
Comparing Original 7.3 M reports by Japan Meteo Agency and the USGS to 6.9 report.
Comparing 7.4 M report by Japan Meteo Agency to the USGS 6.9 M report
A five minute duration of swaying was reported far away in Tokyo.
It was felt as a IX in the area of the Fukushima Daiichi Nuclear Power Station, according to “Did you feel it?” Reports to the USGS.
What damage corresponds to a IX? “IX. Damage considerable in specially designed structures; well-designed frame structures thrown out of plumb. Damage great in substantial buildings, with partial collapse. Buildings shifted off foundations.” Modified Mercalli Intensity:
A video made by EqAlarm suggests that the movement (PGA, Peak Ground Acceleration) in the area of the Fukushima Nuclear Power Stations was indeed very high.
See at 6.00.15-19 sec. video here showing changes in Peak Ground Acceleration (PGA) from the earthquake, throughout Japan: https://twitter.com/EqAlarm/status/800811671757340672/video/1
See more here:https://ja-jp.facebook.com/EqAlarm/
According to the Guardian, TEPCO itself confirmed strong ground acceleration:
“reactor number 3 spent fuel pool pump tripped and stopped operating at 6.10am. Operation resumed at 7.49am. Tepco says the stoppage was caused by the tremor and “strong acceleration” at the power plant. ”.https://www.theguardian.com/world/live/2016/nov/21/japan-earthquake-tsunami-warning-live-updates
LOSS OF COOLING FOR 1.5 HOURS
According to the Tepco Web site,
“November 22, 2016
On the influence of the earthquake occurring around 5:59 am on November 22, on our facilities: An earthquake of magnitude 7.4 with epicenter off Fukushima Prefecture occurred around 5:59 am on 22nd November.
At around 6:10 am, Fukushima Daini Nuclear Power Station Unit 3 fuel pool cooling purification system stopped automatically, but it resumed operation at 7:47 am.
Additionally, the impact on major power facilities including our nuclear power plant has not been confirmed.” (Original in Japanese; Google Translation)
Lightening strike in south Louisiana around a year ago caused loss of cooling at Riverbend Nuclear Power Station. Lightening strikes in south Louisiana are much more routine than large earthquakes in Japan, proving the need to shut nuclear reactors down: https://miningawareness.wordpress.com/2016/02/18/lightening-scrammed-nuclear-reactor-lost-cooling-off-for-weeks-on-again-now-off-usnrc-inspection/
According to the Guardian:
“23:47. Fukushima plant update… The company confirms the reactor number 3 spent fuel pool pump tripped and stopped operating at 6.10am. Operation resumed at 7.49am. Tepco says the stoppage was caused by the tremor and “strong acceleration” at the power plant. The quake also caused the temperature inside the reactor to increase to 29.5C from 28.7C over 90 minutes. At 6.38am, the Fukushima Daichi and Daini plants had a tsunami wave about 1m high. A second wave was “not very high”. Read more at: https://www.theguardian.com/world/live/2016/nov/21/japan-earthquake-tsunami-warning-live-updates
LOSS OF POWER TO DISTRIBUTION LINE 9.50 AM-10.10 AM; LOSS OF DUST MONITOR
This is presumably loss of radiation monitoring.
Also from the web site (Tepco Holdings, 22 November 2016):
“This is a follow-up report on the situation of Fukushima Daini Nuclear Power Station.
As a result of the recent earthquake, power interruption of the distribution line on the premises has occurred. Along with this, we installed the dust monitor in the vicinity of the monitoring post No. 1 (on the north side of the premises) among the dust monitors installed at the premises I heard that the dust monitor No.1 is stopped.
After that, after restoring the distribution line around 9:50 am, around 10:10, the same monitor was restored at the site and confirmed that it was healthy.
In addition, all of the dust monitor No. 2 and the monitoring post are operating normally, and there is no problem with the indicated value.
that’s all ” (Original in Japanese; Google Translate to English)
“Tsunami hits Japan after strong quake near Fukushima disaster site
Posted:Mon, 21 Nov 2016 23:31:04 -0500
TOKYO (Reuters) – A powerful earthquake rocked northern Japan early on Tuesday, briefly disrupting cooling functions at a nuclear plant and generating a small tsunami that hit the same Fukushima region devastated by a 2011 quake, tsunami and nuclear disaster.” http://feeds.reuters.com/~r/Reuters/worldNews/~3/NVWJLyCoMrw/us-japan-quake-idUSKBN13G2DC
NUCLEAR POWER STATIONS CANNOT BE MOVED TO HIGHER GROUND!