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Category: Data

Statement by TEPCO on Fukushima Daiichi Post Earthquake

Published December 8, 2012 by Dan

From: [email protected]
Date: 2012年12月7日 18:48:37 JST
Subject: TEPCO Digest December 7, 2012 (2)

Dear Subscriber,

—– Announcement —–

At around 5:18 PM on Friday, December 7, an earthquake (seismic intensity of4) occurred in Hamadori region in Fukushima Prefecture. The conditions of the nuclear power stations are as follows.

Fukushima Daiichi Nuclear Power Station
There has been no problem found with the monitoring post data, Units 1-6 main plant parameters, reactor water injection system, accumulated water transfer, water treatment facility and other facilities. Currently, no injury has been reported due to the earthquake. The maximum acceleration observed in the power station was 26.2 Gal (horizontal direction) at the foundation ground in Unit 6 Reactor Building.

Fukushima Daini Nuclear Power Station
The maximum acceleration observed in the power station was 26.0 Gal(vertical direction) at the foundation ground in Unit 1 Reactor Building.
The fluctuation of the monitoring post readings is being maintained within the range of normal fluctuation before and after the earthquake and currently no radiation impact to the outside of the power station has been reported due to the earthquake. No injury has been reported due to the earthquake.

We will continue investigating the conditions of the equipments/facilities in the power stations.

Tokyo Electric Power Company
Corporate Communications Dept.
Tel: 03-6373-1111

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Radiation Network

Published May 22, 2011 by koholanui

This international radiation monitoring network was designed by Tim Flanegin, founder of Mineralab and creator of geigercounters.com. Please note that some instruments on the network, such as the Medcom Inspector Alert, utilize a large and highly sensitive “2 inch pancake” detector. Others, such as the Medcom Radalert 100, utilize a smaller detector that has a lower background count rate. This explains some of the variation in data from the various monitoring stations. The larger detectors usually average between 20 and 65 counts per minute, depending on altitude and soil content, and other factors such as probe orientation. The smaller detectors usually average between 12 and 25 counts per minute. Tim’s team is working to identify the differences in the sensors on the network.

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C-10 Monitoring Network

Published May 22, 2011 by koholanui

C-10 in Massachusetts has been monitoring Seabrook Nuclear Power Station for 18 years. Their real-time data is available to the public 24 hours a day at this website. More information on the C-10 monitoring program is available here.

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