TOKYO - The Japanese government held a disaster prevention drill on Tuesday simulating a magnitude 8.3 earthquake off eastern Hokkaido that triggered tsunami from the northern main island to Tokyo to review initial response procedures such as assessing damage.

Disaster Prevention Day falls on Sept. 1, the anniversary of the 1923 Great Kanto Earthquake, with the drill held as Japan continues to deal with the aftermath of a magnitude 7.1 earthquake in Kumamoto Prefecture, as well as damage from recent torrential rains.

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