M5.3 hit Fukushima offshore again / Gravitational acceleration reported significantly smaller in Daiichi plant

A major earthquake hit Fukushima offshore at 10:51 11/20/2014 (JST). Magnitude was 5.3, the maximum seismic intensity was 4.

The depth of epicenter was 40km.

Tepco reported the horizontal gal and vertical gal measured in Fukushima Daiichi were 9.7 and 6.6, which are significantly smaller than Fukushima Daini of 16.6 and 12.6 for some reason.

They concluded that no abnormality was reported in both of the plants.

http://www.jma.go.jp/en/quake/20141120105627395-201051.html

http://www.tepco.co.jp/cc/press/2014/1244284_5851.html

http://www.tepco.co.jp/cc/press/2014/1244289_5851.html

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Source: Fukushima