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Brothers volcano

Submarine volcano -1350 m / - 4,429 ft
New Zealand, -34.88°S / 179.08°E
Current status: dormant (1 out of 5)
Brothers volcano books
Typical eruption style: unspecified
Brothers volcano eruptions: unknown, no recent eruptions
TimeMag. / DepthDistanceLocation
Mon, 27 Mar
Mon, 27 Mar 18:41 UTCM 4.9 / 210.1 km27 km- South of the Kermadec Islands

Background:

The submarine Brothers volcano, located NE of the Healy submarine volcano, contains an oval-shaped summit caldera 3-3.5 km wide. The volcano is elongated in a NW-SE direction, and the high point of the dominantly dacitic volcano lies on the NW caldera rim at about 1350 m below the sea surface. The caldera floor is at about 1850 m depth, and a post-caldera lava dome was constructed on the southern caldera floor and partially merges with the southern caldera wall. Brothers volcano displays major submarine hydrothermal activity, including a large field of "black smoker" vents on the NW caldera wall and vents on the post-caldera dome.
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Smithsonian / GVP volcano information

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