TOKYO, Sept 7 (Reuters) - Japan’s 10-year government bond (JGB) yield fell on Tuesday after a moderately solid outcome of an auction for 30-year notes. The 10-year JGB yield fell 0.5 basis point to 0.035%, while 10-year JGB futures rose 0.1 point to 151.98, with a trading volume of 30,527 lots. Earlier on Tuesday, a government auction of 30-year notes received bids worth three times the securities sold, almost the same bid-cover ratio of 3.07 times at the previous auction. The 20-year JGB yield was unchanged at 0.420% and the 40-year JGB yield was also flat at 0.735%. The 30-year JGB yield remained at 0.655% as bonds were untraded. The five-year bonds were not traded either and their yield stayed at minus 0.100%. The two-year JGB yield was unchanged at minus 0.125%. Reporting by Tokyo markets team; editing by Uttaresh.V Our Standards: The Thomson Reuters Trust Principles.