Why are there so many geysers in new zealand?

Answer 1

Well, there are not so many. In 2004 there were apparently 58 geysers in NZ. They are uncommon objects anywhere in the world - perhaps only 1000 worldwide.

Geysers are associated with volcanic activity, and the Taupo Volcanic Zone (which includes Rotorua) is the most important in NZ.

Hot pools, geysers, fumaroles etc are produced by underlying volcanic activity.

Some of the geysers and hot spring activity has been lost by the drowning due to hydro-electric projects, and some has been lost by over-exploitation by domestic withdrawal for house heating.

The hot springs in the South Island, (none of which are associated with geysers) are all associated with faults in the ground, and are thought to be the result of the land rising through tectonic process, faster than it is cooling. All of these are East of the Alpine Fault.

Have a look at teara.govt.nz for an expansive article.

Answer 2

New Zealand has many geysers due to its unique geothermal activity, which is a result of the country's location along the Pacific Ring of Fire. This geothermal activity creates hot springs and geothermal areas that fuel the formation of geysers. Additionally, the presence of volcanic activity in New Zealand contributes to the abundance of geysers in the country.