A powerful earthquake struck in the morning, around 6:46 Italian time, in Japan. After two shocks, the first of 7.9-magnitude and the second of 8.9, the activities of nuclear power plants, airports, trains and underground stations were stopped as a precautionary measure. The epicenter was located at 357 km north-east of the capital and at a depth of 24 km, for these reasons in Tokyo buildings shook...