What do we need to know about a possible mega-quake? | NHK WORLD-JAPAN News

Japanese authorities are urging people in a wide area of the country to take precautions against a possible mega-earthquake.

Also an EQ was recently reported here in the Kanagawa Prefecture .

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The government predicts a 70 to 80 percent probability of a magnitude 8 to 9 quake occurring along the Nankai Trough within the next 30 years.

Damn, and I thought we had it bad in the PNW with a 37% chance of a 7.1+ (possibly up to and beyond 9.0) in the next 50 years.