Seems to no end the warning in Japan where, in addition to problems related to the radioactivity of the central in Fukushima, the earth continues to shake. In fact three shocks have taken place. The first of magnitude 4.7 occurred at 17:33 (9:33 in Italy) in the Ibaraki Prefecture. Not even an hour later there was another earthquake of magnitude 6.3 in the the area of Fukushima, whose epicenter,...