TOKYO (Reuters) - The Nikkei stock average surged more than 13 percent on Tuesday, more than making up for its worst one-day loss since the 1987 stock market crash, after international government pledges to pour cash into struggling banks and restore confidence in the global financial system. At 9:32 p.m. EDT the benchmark Nikkei had gained 1,094.32 points to 9,370.75, a rise of 13.2 percent. The broader Topix was up 12.6 percent at 946.83.