New Zealand has been put on tsunami alert after the National Emergency Management Agency (NEMA) issued a warning following a magnitude 6.3 earthquake in the South Island. However, the intensity was latter downgraded to 5.9. The quake had hit 40 km north of Te Anau, a town located south-west of Queenstown, on the South Island. NEMA said that areas from Milford Sound to Puysegur Point are most likely to be affected.