Notice Type
Land Notices
Notice Title

Notice of Decisions to Alter, Adopt and Discontinue Undersea Feature Names

Pursuant to sections 10(1)(d), 25 and 26 of the New Zealand Geographic Board (Ngā Pou Taunaha o Aotearoa) Act 2008, the New Zealand Geographic Board Ngā Pou Taunaha o Aotearoa (“Board”) hereby gives notice of 21 altered and adopted official undersea feature names, and one discontinued undersea feature name, beyond New Zealand’s 12 nautical mile territorial limit, as described in the Schedule below.

The Board’s final determinations on these undersea feature names took effect on 20 May 2019.

Schedule

Altered, Adopted or Discontinued Undersea Feature Name

Undersea Feature Type

Description

Coordinates
(latitude, longitude)

Aiguilles Canyon

Canyon

An undersea canyon approximately 60km northeast of Great Barrier Island (Aotea Island). Depicted on Cuvier Chart©, Wright, 1989. Adopted as official.

-35.6431, 176.041

Barrier Bank

Bank

A flat-topped bank approximately 55km northeast of Great Barrier Island (Aotea Island). Depicted on Poor Knights Chart©, Eade, 1971. Adopted as official.

-35.6339, 175.8059

Barrier Ridge

Ridge

A small west-east orientated ridge approximately 35km north of Great Barrier Island (Aotea Island). Depicted on Poor Knights Chart©, Mitchell, 1995. Alteration from the unofficial name, Barrier Knoll.

-35.75, 175.4933

Brodie Seamount

Seamount

A seamount approximately 210km east of East Cape. Published in two official documents. Adopted as official.

-37.4398, -178.9632

Endeavour Banks

Banks

Published on Pukaki Chart©, Summerhayes, 1966. The feature is already named Endeavour Spur (official name by New Zealand Gazette, 16 December 2010, No. 173, page 4275) so is discontinued.

-53.5, 174.25

Fiordland Trench

Trench

A deep trench west of the west branch of the Alpine Fault, south of Milford Sound/Piopiotahi. Published in two official documents. Adopted as official.

-45.2239, 166.2966

Haedal Seamounts

Seamounts

Two dome-shaped seamounts in the Southern Ocean, approximately 360km east of the Balleny Islands. Published in the GEBCO Gazetteer. Adopted as official.

-67.187, 173.032

Kāretu Seavalleys

Valleys

A series of small valleys approximately 115km west of Cape Reinga / Te Rerenga Wairua. Depicted on Three Kings Chart©, Mitchell & Eade, 1990. Adopted as official.

-34.3504, 171.4374

Katz Guyot

Guyot

A guyot on Hikurangi Plateau, approximately 420km east of Gisborne. Published in two official documents. Alteration from the unofficial name, Katz Seamount.

-38.8082, -177.0013

Matheson Bank

Bank

A small bank on Chatham Rise, approximately 200km west of Chatham Island. Depicted on Bounty Chart©, Krause & Cullen, 1970. Adopted as official.

-43.9333, -179.25

Monowai Caldera

Caldera

A roughly circular caldera on Kermadec Ridge, approximately 1340km northeast of North Cape (Otou). Assigning a new name to an unnamed undersea feature.

-25.8, -177.14

North Bounty Channel

Sea Channel

The northernmost of three western tributaries of Bounty Channel, approximately 150km east-northeast of Dunedin. Depicted on Otago Chart©, Brodie, 1969. Adopted as official.

-45.8882, 172.8719

Pantin Bank

Bank

A bank forming the northern end of Ritchie Ridge, approximately 50km east-southeast of Mahia Peninsula. Depicted on Mahia Chart©, Arron & Lewis, 1992. Adopted as official.

-39.3380, 178.4587

Rakaia Seavalley

Valley

A valley approximately 70km south of Banks Peninsula. Depicted on Ellesmere Chart©, Herzer, 1980. Adopted as official.

-44.5939, 172.9464

Rapuhia Scarp

Scarp

A northwest-southeast trending continuous precipitous scarp, approximately 330km northeast of East Cape on the eastern margin of Hikurangi Plateau. Depicted on Lachlan Chart©, Carter, 1995. Adopted as official.

-36.492, -177.9558

Satgat Seamount

Seamount

A dome shaped seamount in the Southern Ocean, approximately 450km east of the Balleny Islands. Published in the GEBCO Gazetteer. Adopted as official.

-67.274, 175.1727

Scott Guyot

Guyot

A guyot in the Southern Ocean, approximately 51km southeast of Scott Island. Assigning a new name to an unnamed undersea feature.

-67.8333, -179.5

Seorak Seamount

Seamount

A dome shaped seamount in the Southern Ocean, approximately 400km east of the Balleny Islands. Published in the GEBCO Gazetteer. Adopted as official.

-67.5587, 174.1867

South Bounty Channel

Sea Channel

The southernmost of three western tributaries of Bounty Channel, approximately 150km southeast of Dunedin. Depicted on Bounty Chart©, Krause & Cullen, 1970. Adopted as official.

-46.5755, 172.4817

Taranaki Terrace

Terrace

A nearly flat terrace approximately 150km west-southwest of Cape Egmont. Depicted on Egmont Chart©, van der Linden, 1966. Alteration from the unofficial name, Egmont Terrace.

-39.6545, 172.2352

Te Kapu Bank

Bank

A bank separated from the continental slope by Ritchie Ridge, approximately 60km east-southeast of Mahia Peninsula. Depicted on Mahia Chart©, Arron & Lewis, 1992. Adopted as official.

-39.3245, 178.5872

Whenuanuipapa Plain

Plain

A large flat area of seafloor beyond the foot of the continental slope, between East Cape and Mahia Peninsula. Depicted on Cook Chart©, Baldwin & Lewis, 1991. Adopted as official.

-38.2928, -179.0113

Dated at Wellington this 20th day of May 2019.

W. K. SHAW, Secretary, New Zealand Geographic Board Ngā Pou Taunaha o Aotearoa.