Magnitude 9 Earthquake in Kuril Trench 'Highly Imminent' — Government Scientists
JANUARY 8, 2018
From results of the investigation of coastal tsunami deposits, earthquakes of the largest scale were judged to reach a magnitude of around 8.8. Since the average recurrence interval is 340-380 years, and 400 years have already passed since the last one, recurrence is “highly imminent,” with a maximum 40% chance of one occurring in the next 30 years.
Moreover, the maximum size of the Tokachi coast earthquakes has been raised from Magnitude 8.1 to M8.6, with the chance of recurrence in the next 30 years evaluated as 7%.
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