インドネシア，東部ジャワ，スメル火山およびブロモ火山の噴火活動

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(2) Eruptive Activity at Semeru and Bromo Volcanoes, East Java, Indonesia Masato IGUCHI +

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(66) . ῍ῌ῎῏ῐῑ ῎῏ +. ³z´µ G¶HWIJ9 I Mahameru MN·¸ Photo +. Typical eruption at the summit crater of Semeru volcano. Photograph taken from Mahameru, the summit. ῎῏ ,. ³z rock-fall. IMN +, km KLK, Gunung Sawur Ao·¸ Photo ,. Rock-fall descending down the Semeru volcano. Photograph taken from Gunung Sawur Observatory, +, km ESE of the summit. ῎῏ -. CDE ,**. 0 + 2 9:( / !0 Photo -. Eruption on June 2, ,**. at Bromo volcano. The photograph was taken ca. / minutes after the beginning of eruption, from the caldera rim, , km from the crater. ῎῏ .. MN( + km O!# ' 'M o( /* cm $J impact crater NJ, Photo .. Ballistic bomb fallen at ca. + km from the crater. Am impact crater of /* cm in diameter was formed..

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(68) Mahameru Photo +. Typical eruption at the summit crater of Semeru volcano. Photograph taken from Mahameru, the summit.. - ,**. 0 2 ! / "# Photo -. Eruption on June 2, ,**. at Bromo volcano. The photograph was taken ca. / minutes after the beginning of eruption, from the caldera rim, , km from the crater.. , rock-fall. +, km $%$ &'( Gunung Sawur )*+,- Photo ,. Rock-fall descending down the Semeru volcano. hotograph taken from Gunung Sawur Observatory, +, km ESE of the summit.. . .! + km /&01234(5 5 67 ,-! /* cm 89: impact crater ;<=: '( Photo .. Ballistic bomb fallen at ca. + km from the crater. Am impact crater of /* cm in diameter was formed..

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