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1934 Pahiatua earthquake
The 1934 Pahiatua earthquake struck at 11:46 pm on 5 March, causing severe damage in much of the lower North Island. Wairarapa, Wellington and Hawke's Bay (which was still recovering from the 1931 Hawke's Bay earthquake) felt the strongest levels of shaking, with much of New Zealand feeling the tremor.
This earthquake has historically been referred to as the Pahiatua Earthquake, but recent reviews of its epicenter place it closer to the locality of Horoeka. It was felt as far north as Auckland, and the shaking was also felt in the mainland of the northern South Island, and along the east coast as far as Dunedin. Destructive intensities of VIII (''Severe'') were experienced in an area that extended approximately 8700 km2 over most of the lower North Island, and reached a peak of IX (''Violent'') south-east of Pahiatua, between the small towns of Pongaroa and Bideford.〔(【引用サイトリンク】 title=M 7.6, Horoeka, 5 March 1934 )〕
==Tectonic setting==
The eastern part of North Island lies on the Hikurangi margin, where the Pacific Plate is subducting obliquely beneath the Australian Plate. The dextral (right lateral) component of the convergence is accommodated in the overlying plate by a series of dextral strike-slip faults, known as the North Island Fault System.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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