Tokyo has been hit by powerful megathrust earthquakes in 1703, 1782, 1812, 1855, 1923, and much more indirectly (with some liquefaction in landfill zones) in 2011; the frequency of direct and large quakes is a relative rarity. The 1923 earthquake, with an estimated magnitude of 8.3, killed 142,000 people, the last time the urban area was directly hit. The 2011 quake focus was hundreds of kilometers away and resulted in no direct deaths in the metropolitan area.