Maroa Caldera
| Maroa Caldera | |
|---|---|
Maroa Caldera approximate location and boundaries contained within the older Whakamaru Caldera. The Ohakuri Caldera which had a paired eruption with the Rotorua Caldera is to its north and was not recognised as a separate caldera historically. To its west is the oldest Mangakino Caldera of the old Taupō Rift (yellow shading). Also shown is the modern Taupō Rift (red shading), Hauraki Rift (purple shading) and landmarks of Lake Taupō and Lake Rotorua | |
| Highest point | |
| Peak | Maroanui |
| Elevation | 897 m (2,943 ft) |
| Coordinates | 38°31′11″S 176°01′19″E / 38.5198°S 176.022°E |
| Dimensions | |
| Length | 25 km (16 mi) |
| Width | 16 km (9.9 mi) |
| Geography | |
Maroa Caldera | |
| Country | New Zealand |
| Region | Waikato |
| Range coordinates | 38°25′12″S 176°4′48″E / 38.42000°S 176.08000°E |
| Geology | |
| Rock age | |
| Mountain type | Caldera |
| Volcanic zone | Taupō Volcanic Zone |
| Last eruption | 11,300 years BP |
| Climbing | |
| Access | State Highway 1 (New Zealand) |
The Maroa Caldera (Maroa volcanic centre, Maroa volcanic complex, Maroa dome complex) is approximately 16 km × 25 km (9.9 mi × 15.5 mi) in size and is located in the north-east corner of the earlier Whakamaru caldera in the Taupō Volcanic Zone in the North Island of New Zealand. Volcanic activity in the complex commenced over 300,000 years ago and the most recent volcanic eruption within it was c. 9,400 years BCE.