Tsunami alert lifted after earthquake shakes NZ

Fiordland National Park in New Zealand's South Island
A magnitude 5.9 earthquake has struck the South Island's Fiordland region. -AP

A magnitude 5.9 earthquake has struck ‌near the town of Te Anau in New Zealand's lower South Island, ‌shaking buildings and prompting authorities to briefly issue a tsunami warning.

The ‌earthquake's epicentre was about 40km north of Te Anau, which is the gateway to the tourist hotspot of Fiordland, according to New Zealand's National Emergency Management Agency (NEMA).

There were ‌no immediate reports ‌of injuries ⁠or damage.

The quake struck after 9pm on Thursday.

Authorities initially assessed its strength at magnitude 6.3, with NEMA issuing a tsunami warning and urging people in coastal areas to evacuate.

It later downgraded the warning to an ⁠advisory after the magnitude was ‌revised ​to 5.9 before cancelling it altogether, saying the threat had passed ​after no ‌tsunami signals were detected for two hours following the quake.

Local ​resident Maylene Puyat, the duty manager at Te Anau's Fiordland Hotel, told Reuters the earthquake was "a bit ​strong" and ​shook the building for ​about a minute.

"In the hotel, ‌it's shaking," she said.

Another resident told local outlet Otago Daily Times the earthquake shaking was "long and loud" and sounded "like a train".

"The walls were definitely moving," they said.

More ​than 20,000 "felt reports" were sent to hazard monitoring system GeoNet.