Onepoto (volcanic crater)

Two postcards from around 1910, showing Onepoto domain before it was reclaimed.

Onepoto is the name of a volcanic explosion crater (or maar) in North Shore City, New Zealand. It is a part of the Auckland volcanic field.

Located near the approaches to the Auckland Harbour Bridge, it was created by a series of eruptions approximately 185,000 years ago. The crater first became a freshwater lake, and later became a tidal lagoon when sea level rose to the present level 7,000 years ago after the last ice age. The crater's floor has been reclaimed, with recreational sports fields and a pond, and some parts of the tuff ring were quarried away in the 1950s to provide fill for the Northern Motorway.^[1]

See also[]

• Onepoto Bridge, a bridge offering views of the area
• Tank Farm, a neighbouring crater

References[]

• Volcanoes of Auckland: The Essential guide - Hayward, B.W., Murdoch, G., Maitland, G.; Auckland University Press, 2011.

• Volcanoes of Auckland: A Field Guide. Hayward, B.W.; Auckland University Press, 2019, 335 pp. ISBN 0-582-71784-1.

External links[]

• Photographs of Onepoto held in Auckland Libraries' heritage collections.

Coordinates: 36°48′29″S 174°45′03″E / 36.80818°S 174.75085°E / -36.80818; 174.75085

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