On the morning of 16 October 1848, Marlborough was struck by a damaging earthquake later estimated to be between magnitude 7.4 and 7.7 [REF].
On 23 April 1966, a magnitude 5.8 earthquake with an epicenter in Cook Strait, 40 km east of Seddon[REF] was most strongly felt in the town, damaging the chimney on almost every house in town [REF].