Qualla: 1855 Wairarapa Earthquake https://qualla.com/1855-wairarapa-earthquake en-us © 2026 Bendyline Mon, 20 Jul 2026 10:21:28 GMT Qualla serial false Qualla support@bendyline.com yes https://qualla.com/_m/r/b/s/h/1855-wairarapa-earthquake-wp/hero-small.webp Qualla: 1855 Wairarapa Earthquake https://qualla.com/1855-wairarapa-earthquake 1855 Wairarapa Earthquake: Introduction https://qualla.com/1855-wairarapa-earthquake/ Photo credit M.Bitton, CC BY-SA 4.0. At 9:17 on the evening of 23 January 1855, the ground beneath the southern North Island lurched sideways by up to 18 metres. The shaking lasted at least 50 seconds - long enough for every brick chimney in Wellington to fall, for the Hutt River bridge to collapse, and for the coastline itself to heave upward by more than 6 metres in places. At an estimated magnitude of 8.2, the Wairarapa earthquake remains the most powerful recorded in New Zealand since European colonization began, and the horizontal displacement it produced was the largest ever directly observed on a strike-slip fault anywhere in the world.

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Image: M.Bitton | CC BY-SA 4.0

]]> Mon, 09 Mar 2026 00:00:00 GMT https://qualla.com/_m/r/b/s/h/1855-wairarapa-earthquake-wp/rbsh-1855-wairarapa-earthquake-intro.mp3 0:06 1 full 1855 Wairarapa Earthquake: Where Plates Collide https://qualla.com/1855-wairarapa-earthquake/ Photo credit Mikenorton, CC BY-SA 3.0. New Zealand sits astride the boundary between the Australian and Pacific tectonic plates, and the two halves of the country accommodate this collision differently. In the South Island, most of the strain concentrates along the Alpine Fault, a single massive fracture running the l...

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Image: Mikenorton | CC BY-SA 3.0

]]> Mon, 09 Mar 2026 00:00:00 GMT https://qualla.com/_m/r/b/s/h/1855-wairarapa-earthquake-wp/rbsh-1855-wairarapa-earthquake-where-plates-collide.mp3 0:06 2 full 1855 Wairarapa Earthquake: The Night the Coast Rose https://qualla.com/1855-wairarapa-earthquake/ Photo credit Mikenorton, CC BY-SA 3.0. The earthquake's vertical effects were as dramatic as its horizontal ones. The Remutaka Range, on the northwestern side of the Wairarapa Fault, tilted upward, with vertical offsets of about 6 metres near the fault that diminished to nearly nothing at Wellington's western coast. A...

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Image: Mikenorton | CC BY-SA 3.0

]]> Mon, 09 Mar 2026 00:00:00 GMT https://qualla.com/_m/r/b/s/h/1855-wairarapa-earthquake-wp/rbsh-1855-wairarapa-earthquake-the-night-the-coast-rose.mp3 0:06 3 full 1855 Wairarapa Earthquake: A City Built Twice https://qualla.com/1855-wairarapa-earthquake/ Photo credit Mikenorton, CC BY-SA 3.0. Wellington was only fifteen years old when the earthquake struck, and it had already been knocked down once before. The 1848 Marlborough earthquake had destroyed much of the settlement's brick and stone construction, and the city rebuilt almost entirely in timber. That decision p...

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]]> Mon, 09 Mar 2026 00:00:00 GMT https://qualla.com/_m/r/b/s/h/1855-wairarapa-earthquake-wp/rbsh-1855-wairarapa-earthquake-a-city-built-twice.mp3 0:06 4 full 1855 Wairarapa Earthquake: Lyell's Revelation https://qualla.com/1855-wairarapa-earthquake/ Photo credit Mikenorton, CC BY-SA 3.0. News of the earthquake and its visible surface rupture reached Charles Lyell, the preeminent geologist of the Victorian era, whose Principles of Geology had reshaped the science. The Wairarapa Fault's dramatic displacement - an unambiguous crack in the earth's surface with metres...

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]]> Mon, 09 Mar 2026 00:00:00 GMT https://qualla.com/_m/r/b/s/h/1855-wairarapa-earthquake-wp/rbsh-1855-wairarapa-earthquake-lyells-revelation.mp3 0:06 5 full 1855 Wairarapa Earthquake: The Ecological Aftershock https://qualla.com/1855-wairarapa-earthquake/ Photo credit Mikenorton, CC BY-SA 3.0. When the coastline heaved upward, the intertidal zone that had supported dense forests of southern bull kelp was suddenly high and dry. Durvillaea antarctica populations along the Wellington coast were likely wiped out entirely. This ecological catastrophe, repeated across multip...

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]]> Mon, 09 Mar 2026 00:00:00 GMT https://qualla.com/_m/r/b/s/h/1855-wairarapa-earthquake-wp/rbsh-1855-wairarapa-earthquake-the-ecological-aftershock.mp3 0:06 6 full