Caldera Maroa is one of several large calderas located in the Taupo volcanic zone on the North Island of New Zealand . The dimensions of the Maroa caldera are 16 × 25 km; it contains at least 70 simple and complex volcanic domes . The size of single domes is from 300 meters to 3 km across, the area of the largest complex of domes is 45 km² [2] . The caldera formed about 230,000 years ago in the northeast corner of the Wakamaru caldera, the largest in the Taupo volcanic zone. The last known magmatic eruption in the Maroa caldera occurred about 14,000 years ago when the tuff ring and the volcanic dome of Puquetarat formed [1] . The hydrothermal zones of Orakeikorako, Ngatamariki, Rotokaua and Wairakei are located in the Caldera region of Maroa and Wakamaru. Before the Hatepe eruption , powerful hydrothermal eruptions occurred in the Orakeikorako zone [1] .
| Maroa | |
|---|---|
| English Maroa | |
| Specifications | |
| Volcano shape | Caldera |
| Crater Diameter | 16,000 to 25,000 m |
| Last eruption | 180 year |
| Highest point | |
| Absolute height | 897 [1] m |
| Location | |
| A country |
|
| Region | Taupo Volcanic Zone |
Notes
- ↑ 1 2 3 Caldera Maroa : [ eng. ] // Global Volcanism Program . - Smithsonian Institution . - Date of appeal: 10/14/2017.
- ↑ Maroa, New Zealand . volcano.oregonstate.edu. Date of appeal October 14, 2017.