Fukushima Daiichi Earthquake Damage Update 3.30.21
Inspections and response efforts from the February 2021 earthquake were still underway when another earthquake hit on March 20th. Due
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unit 1
Update: Fukushima Unit 1 & 3 Containment Leaks
New information was published by TEPCO updating details about the new containment water leaks caused by the February earthquake. At
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Pressure Drop at Fukushima Daiichi Unit 1
More problems from the recent earthquake in Fukushima Prefecture are being found. Water leaks were discovered at units 1 and
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Fukushima Daiichi Reactors Suffer Containment Damage In Quake
A report published by TEPCO today shows new containment damage suffered by units 1 and 3 at Fukushima Daiichi as
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Fukushima Unit 1 Spent Fuel Pool Cover Installed
TEPCO has completed the installation of a floating air bag to protect the spent fuel pool at unit 1, Fukushima
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New High Risk Work For Fukushima Daiichi Announced
TEPCO has announced new work at Fukushima Daiichi related to the unit 1-2 vent tower. This location has the highest
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Fukushima Unit 1-2 Vent Tower Dismantled
The upper half of the unit 1-2 vent tower has been cut down and the vent pipe has been capped.
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Fukushima Unit 1 Containment Inspection Prep Work Completed
TEPCO announced that work to prepare unit 1 for a new containment inspection has been completed. This work has been
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SimplyInfo.org; Annual Report – Unit 1
This is one section of our annual report, the full report can be found here. We will be posting a
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TEPCO Delays Unit 1 Inspection Indefinitely
NHK is reporting that TEPCO will indefinitely delay the containment inspection work inside unit 1 at Fukushima Daiichi. Concerns about
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Unit 1 Containment Inspection
Much anticipated inspection inside unit 1 containment.
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Runaway Bus Causes Damage At Fukushima Daiichi
The bus used as a remote command center for the work to cut down the unit 1-2 vent tower took
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Fukushima Unit 1 New “Plan B” To Remove Spent Fuel
TEPCO has added an additional option to their plans for the removal of spent fuel from unit 1 at Fukushima
Read moreFirst Photos of Fukushima Unit 1 Containment Cap
TEPCO released these photos as part of the end of the month report. This is the first look at the
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Fukushima Unit 1 Containment Inspection Update
Plans to inspect inside the containment structure of unit 1 at Fukushima Daiichi has again hit a series of delays.
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Unit 1 Containment Cutting
Ongoing work to cut an access hole into Unit 1’s containment for the upcoming robot inspection.
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Unit 1 Containment Cutting Resumes
Work to cut a hole in personnel door into containment resumes.
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SimplyInfo.org; Unit 1 Interim Report 2019
A number of new events tied to unit 1 have taken place. These lend new insight into the initial disaster
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Fukushima Unit 1 Reactor Well Inspection Results
The inspection of the unit 1 reactor well began in July, continuing into the end of August. A trio of
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Fukushima Unit 1 Spent Fuel Pool Inspection
The first inspection of the unit 1 spent fuel pool has been conducted. Workers found visibility of about 7 meters
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Fukushima Unit 1; Site Of Significant New Work
Fukushima Unit 1 has been the site of significant new work on multiple fronts. We outline the new events and
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Reactor Well Inspections Start At Fukushima Unit 1
TEPCO published preliminary photos July 18th showing the start of inspection work of the reactor well for unit 1. Two
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How Work To Remove A Radioactive Tower At Fukushima Daiichi Went Wrong
Measure twice, cut once. Work to remove the highly contaminated units 1-2 vent tower at Fukushima Daiichi took an unfortunate
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Drilling Of Internal Door Daiichi Unit 1
TEPCO will drill through the interior door of the X-2 penetration into containment in early June. This will allow full
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Unit 1 Containment Inspection
Unit 1 upcoming containment inspection
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Fukushima Daiichi Unit 1-2 Vent Tower Removal Starts
Originally scheduled for May 20th. This event has now been postponed to some time in June.
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Fukushima Unit 1 Upcoming Inspection; What You Need To Know
TEPCO and the various entities tasked with dealing with the disaster clean up at Fukushima Daiichi have announced details of
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Fukushima Daiichi Debris Samples Reveal Dangerous Link
A detailed TEPCO document from July 2018 gives some important new insight into the meltdowns at Fukushima Daiichi and the
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TEPCO Has A Plan For Some Of The More Dangerous Work At Daiichi
One of the most dangerous places at Fukushima Daiichi may undergo work to reduce the ongoing risk. Soon after the
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SimplyInfo.org: Fukushima Reactors Face More Setbacks
TEPCO and the decommissioning authorities have reported on the ongoing delays at Fukushima Daiichi. As we reviewed these reports we
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Experts Tell All On Fukushima Unit 1
The Nuclear Decommissioning Facilitation Corp (NDF) held their annual meeting recently. Presentations by various experts and those involved with the
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Fukushima Unit 1 Containment Inspection Update
TEPCO released a report with some new conclusions related to the earlier inspections of unit 1’s containment floor. The new
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Fukushima Unit 1 Refueling Floor Inspection Results
Investigations of the unit 1 refueling floor area took place between November 2016 and February 2017. This area has been
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Fukushima Unit 1 More Questions Than Answers From New Inspection
TEPCO has completed a multiple day inspection of unit 1 at Fukushima Daiichi. This new work used the PMORPH robot
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Pmorph Robot Prepares For Fukushima Unit 1 Entry
An improved version of the Hitachi shape changing robot previously used at unit 1 has been unveiled by IRID. The
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Fukushima Unit 1 Cover Removal Completed
TEPCO has reported that the last sections of the cover over unit 1 have been removed. The next phase is
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Fukushima Vent Tower Drone Inspection Completed
TEPCO reported on October 20th that they completed the drone inspections of unit 1-2 vent tower. Minimal data was provided
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Drones Used To Inspect Fukushima Vent Tower
A flying quadcopter was used to attempt to inspect the Unit 1-2 vent tower at Fukushima Daiichi. The tower has
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Fukushima Vent Tower 1-2 Water Drain Sampling Results
TEPCO has successfully obtained a sample and water depth for the sump drain connected to the unit 1-2 vent tower.
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Fukushima Unit 1 Cover Being Removed, What Happens Next
Asahi Shimbun is reporting that work has begun to remove the cover from Fukushima Daiichi Unit 1. The cover has
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