Four more strong aftershocks struck New Zealand South Island's Fiordland on Thursday afternoon, following Wednesday night's 7.8 magnitude earthquake, Xinhua reported.
One quake, measuring at 5.3 on the Richter scale, hit the area at 12:24 p.m. (0024 GMT). Another tremor, measuring 5.6, was felt 20 minutes later, followed by a 5.1 quake at 1:30 p.m., the New Zealand Institute of Geological and Nuclear Sciences (GNS Science) reported.
The latest one, at 2:13 p.m., measured 5.1 and was at a depth of 12 km, and 80 km west of Te Anau.
GNS Science said the aftershocks were felt in Alexandra and Invercargill.
The initial 7.8-magnitude quake, which was centered 100 km northwest of Tuatapere and 12 km deep, struck at 9:22 p.m. on Wednesday, causing no casualties.
The Wednesday quake was felt widely throughout the South Island and as far north as western North Island, and was followed by two sizable aftershocks, one 19 minutes after the initial quake measuring 6.1, and another at 1:50 a.m. measuring 5.9.
Earthquake Commission spokesman Lance Dixon said 183 claims had been lodged by 2:45 p.m. Thursday, with minor damage reported, including cracks to wallpaper, bricks and house exteriors, the New Zealand Press Association reported.