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Volcanic Structure and Geology of Kuchinoerabujima Volcano
Nobuo GESHI and Tetsuo KOBAYASHI

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1, +ῌ+ῌ+ Higashi, Tsukuba, Ibaraki -*/ῌ2/01, Japan.
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Department of Earth and Environmental Sciences,
Faculty of Science, Kagoshima University, +ῌ,+ῌ-/Korimoto, Kagoshima 23*ῌ**0/, Japan.
Corresponding author : Nobuo Geshi
e-mail : geshi-nob@aist.go.jp

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Aerial view of the central part of Kuchinoerabujima volcano. A deep crater in left side is Shintake crater anda shallow crater in right is Furutake crater. Photo by T.Kobayashi on October ,*, ,**-, from an aircraft ofJapan Coast Guard.
6( DE /0" 5 x2 /09 ~9 ((F ,**,  ++ Western view of the central part of Kuchinoerabujima Volcano. Noike volcano, Shintake volcano and Younger
Furutake volcano from left to right.
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Shintake crater from its eastern rim, about ,/* m across and +-* m deep. All the historical eruptions since +3thcentury occurred from inside and around this crater. Photo by M.Iguchi.
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Although no historical eruption is recorded, age of the youngest pyroclastic ﬂow deposit at the eastern ﬂank isabout ,** years ago. Active solfataras exist in the southern part of the crater. Yakushima Island is in distant.
M(/0"   G¢bP£!E1 B0!J ,**.  +* Southern view of Noike crater. Crater is covered with vegetation and no thermal activity is recognized.
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§T© ª«"¬© /0J  ,**-  ++ Nemachi pyroclastic deposit erupted form Noike volcano around +/,***ῌ+.,*** years ago. This photographshows a welded part at Nemachi spa area.
 +-,***@++,***  + !" «U­2V®"W¯°X2¨±WB<²³R´/0J  ,**-  ++ Older Furutake volcano formed around +-,***ῌ++,*** years ago, consisting of a pile of agglutinate with layered
structure.
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0! W" Z[·¸@¹/0J]9 ^^º\2»¼ ,**, +* Stratiﬁed volcanic breccia capping the summit of Younger Furutake volcano, associated with the explosive
phreatomagmatic v Vulcanian eruptions at younger Furutake crater.

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{P/0Q ,**- 6 ++ @Photo +,. Eruption ﬁssure in the eastern summit area of Shintake. Eruptions occurred from this ﬁssure in +3./ and +32*.
Blocks ejected from Shitake crater are scattered around the ﬁssure.
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Photo +-. Recent activity of fumaroles from the southern rim of Shintake crater. Photo by M. Iguchi.