Hokkaido and Pacific coast now understood to face higher risk of powerful earthquakes
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The government released its annual update to Japan's earthquake probability map on Tuesday, indicating an increased likelihood of strong earthquakes occurring within the next 30 years across a wide area of the Pacific coast including parts of Hokkaido.
The map showed a sharp increase in the probability of a powerful earthquake, measuring lower 6 or stronger on the Japanese seismic intensity scale of 7, in Kushiro, Hokkaido, in the next 30 years, jumping 22 percentage points to 69 percent.