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Maroa

Photo of this volcano
  • New Zealand
  • New Zealand to Fiji
  • Caldera(s)
  • 180 CE
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 38.42°S
  • 176.08°E

  • 897 m
    2943 ft

  • 241061
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number
Most Recent Weekly Report: 28 March-3 April 2001 Citation IconCite this Report

On 30 March the IGNS reported that a moderate-sized hydrothermal explosion occurred in the Alum Lakes area, Wairakei, knocking over trees and destroying vegetation near the crater. Water levels at several of the Alum Lakes had dropped several weeks before the explosion.

Source: GeoNet

Weekly Reports - Index


2001: March


28 March-3 April 2001 Citation IconCite this Report

On 30 March the IGNS reported that a moderate-sized hydrothermal explosion occurred in the Alum Lakes area, Wairakei, knocking over trees and destroying vegetation near the crater. Water levels at several of the Alum Lakes had dropped several weeks before the explosion.

Source: GeoNet


The Global Volcanism Program has no Bulletin Reports available for Maroa.

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Eruptive History

There is data available for 2 Holocene eruptive periods.

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
0180 (?) Unknown Confirmed   Tephrochronology Orakeikorako
7050 BCE (?) Unknown Confirmed   Tephrochronology Orakeikorako
Deformation History

There is no Deformation History data available for Maroa.

Emission History

There is no Emissions History data available for Maroa.

Photo Gallery

Ngahigo lava dome is one of at least 70 post-caldera lava domes erupted within the Maroa caldera, which formed sometime after about 230,000 years ago north of the Taupo caldera. The youngest of the post-caldera lava domes is Puketarata, which was emplaced within a rhyolitic tuff ring about 14,000 years ago. The domes were erupted along a general SW-NE trend, parallel to the structural trend of the Taupo volcanic zone. No Holocene eruptions have occurred, but vigorous thermal activity continues.

Photo by Ichio Moriya (Kanazawa University).
See title for photo information.
Spectacular siliceous sinter terraces at Orakeikorako cover an area of about 1 cu km, forming one of New Zealand's most impressive thermal areas. The thermal area lies along the Waikato River at an altitude of 260-360 m on the eastern side of the Maroa volcanic center. Hydrothermal explosions took place at five centers at Orakeikorako prior to the Taupo pumice eruption about 1800 years ago, depositing explosion breccias that immediately underlie the Taupo Pumice.

Photo by Richard Wysoczanski, 1994 (Smithsonian Institution).
See title for photo information.
Algae colors the surface of spectacular siliceous sinter terraces at the Orakeikorako thermal area. This geothermal area is one of the principal hydrothermal fields of the Taupo volcanic zone. It lies on the banks of the Waikato River where the Paeroa Fault divides into smaller branches that intersect the eastern margin of the Maroa volcanic center. Orakeikorako contains sinter sheets covering an area of about 1 cu km. Flooding of the river hydroelectric power generation has drowned about 70% of the hot springs.

Photo by Richard Wysoczanski, 1994 (Smithsonian Institution).
See title for photo information.
GVP Map Holdings

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included. The maps database originated over 30 years ago, but was only recently updated and connected to our main database. We welcome users to tell us if they see incorrect information or other problems with the maps; please use the Contact GVP link at the bottom of the page to send us email.


Title: Bay of Plenty-Southern Havre Trough Physiography
Publisher: Department of Scientific and Industrial Research
Country: New Zealand
Year: 1990
Series: Misc
Map Type: Bathymetric
Scale: 1:400,000
Map of Bay of Plenty-Southern Havre Trough Physiography

Title: Bay of Plenty
Publisher: Department of Scientific and Industrial Research
Country: New Zealand
Year: 1989
Series: Coastal
Map Type: Bathymetric
Scale: 1:200,000
Map of Bay of Plenty

Title: New Zealand Geol
Publisher: NZGS, DSIR (Dept Scientific & Industrial Research)
Country: New Zealand
Year: 1987
Map Type: Geology
Scale: 1:2,000,000
Map of New Zealand Geol

Title: Central N Island, Touring Map
Publisher: Department of Lands and Survey New Zealand
Country: New Zealand
Year: 1986
Series: NZMS
Map Type: Geographic
Scale: 1:250,000
Map of Central N Island, Touring Map

Title: New Zealand Topo Map
Publisher: Department of Lands and Survey New Zealand
Country: New Zealand
Year: 1983
Series: NZMS
Map Type: Topographic
Scale: 1:500,000
Map of New Zealand Topo Map

Title: Late Quaternary Tectonic Map of New Zealand
Publisher: Department of Scientific and Industrial Research
Country: New Zealand
Year: 1977
Series: Misc Map Series
Map Type: Geology (Tectonic)
Scale: 1:2,000,000
Map of Late Quaternary Tectonic Map of New Zealand

Title: N Island, Geol Map of NZ
Publisher: NZGS, DSIR (Dept Scientific & Industrial Research)
Country: New Zealand
Year: 1975
Map Type: Geology
Scale: 1:1,000,000
Map of N Island, Geol Map of NZ

Title: N Island, Quaternary Geol
Publisher: NZGS
Country: New Zealand
Year: 1973
Series: Misc
Map Type: Geology
Scale: 1:1,000,000
Map of N Island, Quaternary Geol

Title: Quaternary Geology-North Island
Publisher: Department of Scientific and Industrial Research
Country: New Zealand
Year: 1973
Series: Misc Map Series
Map Type: Geology
Scale: 1:1,000,000
Map of Quaternary Geology-North Island

Title: New Zealand
Publisher: US Central Intelligence Agency
Country: New Zealand
Year: 1971
Map Type: Geographic
Scale: 1:7,500
Map of New Zealand

Title: Rotorua
Publisher: Department of Scientific and Industrial Research
Country: New Zealand
Year: 1964
Series: NZMS 1
Map Type: Geology
Scale: 1:250,000
Map of Rotorua
Smithsonian Sample Collections Database

The following 8 samples associated with this volcano can be found in the Smithsonian's NMNH Department of Mineral Sciences collections, and may be availble for research (contact the Rock and Ore Collections Manager). Catalog number links will open a window with more information.

Catalog Number Sample Description Lava Source Collection Date
NMNH 116566-10 Volcanic Rock WAIRAKEI --
NMNH 116566-11 Volcanic Rock WAIRAKEI --
NMNH 117454-37 Perlite -- --
NMNH 117454-38 Perlite -- --
NMNH 117454-39 Obsidian -- --
NMNH 117454-40 Perlite -- --
NMNH 117454-41 Obsidian -- --
NMNH 117454-42 Pumice -- --
Affiliated Sites