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  • A gravity map of the New Zealand region has been created from onshore observations and satellite altimetry. Onshore gravity is Bouguer Gravity Anomaly from the GNS database ( Data were processed as described in the Terrestrial gravity section of McCubbine et al. (2017). Offshore gravity (and onshore outside of mainland NZ) is Free Air Gravity Anomaly Sandwell and Smith 1 minute land and ocean gravity grid v29 (2020).