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 250,000 years ago. The crater first became a freshwater lake, and later became a tidal lagoon when sea level rose to the present level 7000 yrs 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.

1. ^ Onepoto and Tank Farm - City of Fire, insert magazine in the The New Zealand Herald, Friday 15 February 2008

Coordinates: 36°48′29″S 174°45′03″E / 36.808185°S 174.750853°E / -36.808185; 174.750853