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The Global Volcanism Program has no activity reports for Hijiori.
The Global Volcanism Program has no Weekly Reports available for Hijiori.
The Global Volcanism Program has no Bulletin Reports available for Hijiori.
Hijiori caldera is a small, inconspicuous caldera located NE of the massive Pleistocene Gassan volcano. The low 2.5-km-wide caldera formed during a large eruption about 10,300 radiocarbon years ago. This eruption was accompanied by dacitic pyroclastic flows and tephra fall that extended to the east and reached the Pacific coast and growth of a lava dome. Small local tephra deposits overlie lacustrine deposits. Hot springs occur at Hijiori, and caldera lake deposits have undergone extensive hydrothermal alteration. Hijiori has been evaluated as a potential geothermal energy source using hot dry rock as a heat source.
The Global Volcanism Program is not aware of any Holocene eruptions from Hijiori. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Hijiori page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.
|Hijiori volcano, seen here in an aerial view from the east, is a small, inconspicuous caldera located NE of the massive Pleistocene Gassan volcano. The town of Hijiori lies in the left foreground, along the banks of two rivers that transect the caldera floor. The low 2.5-km-wide caldera formed during a large eruption between about 9500 and 11,000 years Before Present accompanied by pyroclastic flows and tephra fall that extended to the east and reached the Pacific coast.
Copyrighted photo by Hiroshi Yagi (Japanese Quaternary Volcanoes database, RIODB, http://riodb02.ibase.aist.go.jp/strata/VOL_JP/EN/index.htm and Geol Surv Japan, AIST, http://www.gsj.jp/).
The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.
Hayakawa Y, 1994. A catalog of the volcanic eruptions during the last 2000 years in Japan. Sci Rpt Fac Education Gumma Univ, (in Japanese with English abs).
IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..
Japan Association Quaternary Research, 1987. Quaternary Maps of Japan: Landforms, Geology, and Tectonics. Tokyo: Univ Tokyo Press.
Japan Meteorological Agency, 2013. National Catalogue of the Active Volcanoes in Japan (fourth edition, English version). Japan Meteorological Agency.
Machida H, 1976. Stratigraphy and chronology of late Quaternary marker-tephras in Japan. Tokyo Metropolitan Univ Geog Rpt, 11: 109-132.
Machida H, Arai F, 1992. Atlas of tephra in and around Japan. Tokyo: Univ Tokyo Press, 276 p.
Miyagi I, 2004. On the eruption age of the Hijiori caldera, based on more accurate and reliable radiocarbon data. Bull Volc Soc Japan (Kazan), 49: 201-205.
Miyagi I, 2007. Stratigraphy and volcanic activities of Hijiori volcano, northeastern Japan arc. Bull Volc Soc Japan (Kazan), 52: 311-333 (in Japanese with English abs).
Nakano S, Yamamoto T, Iwaya T, Itoh J, Takada A, 2001-. Quaternary Volcanoes of Japan. Geol Surv Japan, AIST, http://www.aist.go.jp/RIODB/strata/VOL_JP/.