Teh Grauniad, reporting Swiss Re, wrote:Earthquakes, hurricanes, cyclones and tsunamis: the world's 10 riskiest cities
1) Tokyo-Yokohama, Japan: With 37 million inhabitants living under the threat of earthquakes, monsoons, river floods and tsunami, the Tokyo-Yokohama region is by far the riskiest in the world: an estimated 80% of Tokyoites, or 29 million, are potentially exposed at any one time to a very large earthquake. Japan is also the country most exposed to tsunami risk, as the country’s urban centres are dotted with an almost perverse accuracy along the Ring of Fire, the active faults of the western Pacific. The Great Kanto Earthquake of 1923 devastated both Tokyo and Yokohama, killing an estimated 142,800 people.
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Strengthening Japan's awesome position, Osaka-Kobe comes in at number 4 while Nagoya ranks at number 6.