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Case Study 18. Geothermal Parks in New Zealand

ByR. Roscoe

Zone (Cole, 1990). This includes the Ruapehu and Tongariro volcanoes near its southern end and the prominent offshore White Island volcano towards its north-eastern end. Eruptions have been recorded at each of these in the last 50 years. In between lie several large calderas such as Taupo, Maroa, Okataina, Reporoa and Rotorua, together harbouring the main geothermal sites. White Island (Figure CS18.1) and the mainland geothermal sites at Rotorua, nearby Waimangu Valley and Wai-O-Tapu are the focus of this case study.