Abundant evidence indicates that such a new volcano exists at L'ihi, a seamount (or submarine peak) located about 20 miles off the south coast.
In 2011, a 9.0-magnitude earthquake -- one of the worst ever to hit Japan -- killed more than 20,000 people and caused tsunamis of up to 12 meters (40 feet) which swamped the Fukushima Daiichi nuclear power plant, triggering a nuclear meltdown. Fukushima resident: We live in fear.
In Japan, for example, in the early 1990s, many seismologists suggested that the Great Kanto earthquake of 1923 (a magnitude-8.2 quake that killed more than 140,000 people in Tokyo and Yokohama) would repeat itself sometime in the mid-1990s to the early-2000s based on a 70- to 80-year cycle.