April 12, 2011 5:18:41 AM
TOKYO, April 12 (Reuters) - A second major aftershock measuring 6.3 rocked northeast Japan on Tuesday, swaying buildings in central Tokyo, shortly after the government upgraded its nuclear crisis to that on par with Chernobyl in 1986.
The latest aftershock struck the area of Fukushima, near the crippled Daiichi nuclear plant, said the Japan Meteorological Agency. A 6.3 aftershock hit Chiba prefecture, neighbouring Tokyo, earlier on Tuesday.
(Reporting by Michael Perry; Editing by David Chance)
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