Tokyo--Feb. 28--Japan's seasonally adjusted industrial and mining production fell 3.9% in January from December to an index figure of 103.2, worse than the Ministry of Economy, Trade and Industry's projection of a 0.7% rise, the ministry announced. The fall was worse than private economists' average forecast of a 0.1% drop. The survey showed output is expected to have risen 2.7% in February and to decrease 1.4% in March.