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over the last 7000 years. The lowest ridge was raised by the 1855 Wairarapa earthquake, which caused a maximum uplift of 6.4 m. The next ridge, with a maximum uplift of 9.1 m, was previously thought to have formed as a result of the Haowhenua earthquake around 1460 AD, but is now believed to have formed around 110-430 BC. The third ridge is estimated to have been uplifted by up to 6.8 m after an earthquake between 2164-3468 BC, and the highest and

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