More than seven decades have passed since the 1923 Great Kanto Earthquake killed more than 100,000 in temblor-prone Tokyo, and seismologists say another “big one” may be overdue.

The experts agree that the possibility of a major earthquake striking beneath Tokyo has increased, a prediction that has recently prompted the Tokyo Metropolitan Government to revise its projections of damages from a major quake. The city government’s latest report predicts that about 7,200 people would die if an earthquake of 7.2 on the Richter scale directly hits Tokyo’s 23 wards; 1,820 would be killed if it hit beneath the Tama district of western Tokyo.

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