BAD AS THINGS WERE, THEY COULD BE A LOT WORSE: Japan experts warn of future risk of giant tsunami. “Much of Japan’s Pacific coast could be inundated by a tsunami more than 112 feet high if a powerful earthquake hits offshore, according to revised estimates by a government panel. The panel of experts says any tsunami unleashed by a magnitude-9.0 earthquake in the Nankai trough, which runs east of Japan’s main island of Honshu to the southern island of Kyushu, could top 34 meters at its highest.” How do you prepare for something like that?