Wellington suffered serious damage in a series of earthquakes in 1848 and from another earthquake in 1855. The 1855 Wairarapa earthquake occurred on the Wairarapa Fault to the north and east of Wellington. It was probably the most powerful earthquake in recorded New Zealand history, with an estimated magnitude of at least 8.2 on the Moment magnitude scale. It caused vertical movements of two to three metres over a large area, including raising land out of the harbour and turning it into a tidal swamp. Much of this land was subsequently reclaimed and is now part of the central business district. For this reason, the street named Lambton Quay is 100 to 200 metres (325 to 650 ft) from the harbour – plaques set into the footpath mark the shoreline in 1840, indicating the extent of reclamation. The 1942 Wairarapa earthquakes caused considerable damage in Wellington.