Radiation dose spikes in Ibaraki northeast of Tokyo near time of last night’s 5 intensity quake — Highest level measured since April — Double average

Published: January 23rd, 2012 at 1:51 pm ET
By
Email Article Email Article
36 comments


Title: Dose at Tsukuba(KEK)
Source: HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION, KEK
Date: Jan 24, 2012

Measured at: Oho 1, Tsukuba 305-0801, Japan [50 km northeast of Tokyo, 150+ km from Fukushima]
Detector: GM counter (photo)

Below, the spike appears to begin around 20:00 on 1/23 and reaches almost 0.2 microSv/h, about twice the normal level:

The far right edge of the chart below shows the recent spike as the highest since April 2011:

Read the report here

 

Published: January 23rd, 2012 at 1:51 pm ET
By
Email Article Email Article
36 comments

Related Posts

  1. UPI: Quake rocks northeast Japan — Intensity 5- out of 7 on seismic scale — Mainichi: M5.4 quake jolts eastern Japan — Near Fukushima border, buildings rocked in Tokyo (MAP) December 30, 2013
  2. “Nuclear reactor fears after huge earthquake strikes Japan” — Plant operator “is further looking into any possible damage” — Quake measured “at highest possible level” on Japan’s intensity scale — Prime Minister: “We intend to do the utmost to grasp situation” — Official: “Extent of damage still unclear” (VIDEOS) April 14, 2016
  3. AP: Strong M6 quake hits Northeast Japan — Rated Upper 5 intensity on scale up to 7 — Tepco says no reports of problems at Fukushima Daiichi (MAP) August 4, 2013
  4. Tokyo Paper: Thick iron shielding placed below radiation monitoring post — Dose was double 5 meters away August 1, 2012
  5. Japan Experts: Fukushima’s melted reactor cores “still active and releasing neutrons” many months after 3/11 — Radioactive sulfur was “the highest ever measured in any atmospheric sample” — “Very high” concentrations detected in Tokyo February 19, 2015

36 comments to Radiation dose spikes in Ibaraki northeast of Tokyo near time of last night’s 5 intensity quake — Highest level measured since April — Double average