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Giggenbach volcano

Submarine volcano -65 m / - 213 ft
New Zealand, Kermadec Islands, -30.04°S / -178.71°W
Current status: dormant (1 out of 5)
Giggenbach volcano books
Typical eruption style: unspecified
Giggenbach volcano eruptions: unknown, no recent eruptions
TimeMag. / DepthDistanceLocation
Thu, 6 Apr
Thu, 6 Apr 17:40 UTCM 5.2 / 10 km38 km KERMADEC ISLANDS, NEW ZEALAND

Background:

Giggenbach submarine volcano, named after volcano gas geochemist Werner Giggenbach, lies NW of Macauley volcano. The flat summit of the basaltic-to-dacitic volcano is cut by a 700-m-wide crater containing a central cone. The volcano reaches to within 65 m of the sea surface, and the summit is cut by numerous small explosion pits and craters. Much of the edifice is blanketed by dacitic pumice, and several edifice-collapse scarps cut its flanks. Large satellite cones are found on the ENE and SSW flanks, and a chain of eight small satellitic cones that fed recent andesitic-dacitic lava flows lies on the west flank. A large hydrothermal vent field was found within the summit crater.
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Smithsonian / GVP volcano information


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