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Monowai Seamount : ウィキペディア英語版 | Monowai Seamount
Monowai is a volcanic seamount to the north of New Zealand. It is one of the most active volcanoes in the Kermadec volcanic arc and has erupted many times since 1977.〔(Global Volcanism Program: Monowai Seamount, eruptive history )〕 ==Description== The summit of Monowai is approximately 〔 below sea level, considerably above the level of the nearby Tonga and Kermadec Trenches. The summit's position and depth changed between 1998 and 2004, due to a landslide and eruptive regrowth. A deep caldera, , lies NNE of the seamount's main cone. Monowai was discovered by an aerial survey in 1944. Subsequent surveys showed evidence of significant change - sea discolouration and seismic activity. Studies between 1978 and 2007 showed the summit repeatedly rising and falling.〔
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