CNN New Day September 9, 2013 10:43:00
Of japan is the biggest in world. >> reporter: scientists are calling it the largest single volcano on earth. at 4 miles wide, it has a footprint the size of new mexico. so why did it take so long to discover? it lies 1,000 miles east of japan in the depths of the pacific ocean. it dwarves the previous record holder and rivals mars, the largest volcano in the solar system. luckily, the bo he moth doesn't pose much of a three. it's been extinct for millions of years. let's talk abouter is refa williams. she did it again for the fifth time, a signature leap after beating victoria azarenka. she i...