Basic research on eruption history for preparing hazard maps of the active volcanoes in Central Kyushu, Japan

日本九州中部活火山灾害地图绘制的喷发历史基础研究

• 批准号: 05680372
• 负责人: WATANABE Kazunori
• 金额: $ 1.34万
• 依托单位: Kumamoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05680372/
• 关键词: Central Kyushu; Active volcano; Hazard map; Eruption history; Unzen volcano; Aso volcano; Kuju volcano; Tsurumi-dake volcano; 鶴見岳; 火山噴火災害

Four active volcanoes, Turumi-dake volcano, kuju volcano, Aso volcano and Unzen volcano, are situated in the Central Kyushu, Japan. We have investigated eruption history of the volcanoes. The results of this study are as follows ;1. The sequence of the growing of lava dome was watched and described as a member of Geological Party, Joint University Research Group for Unzen Volcano.The Geological map of Unzen Volcano will be published by Geological Survey of Japan in the end of this fiscal year.2. Blown down and burnt big trees by the Aso-4 pyroclastic flow were found at about 90 km from the Aso caldera. The occurrence of these trees was very informative for the estimation of temperature and velocity of the Aso-4 pyroclastic flow at distant area.The mode of eruption of Naka-dake, Aso volcano, for the past 15,000 years are clarified. From this result, tentative hazard maps of Naka-dake were proposed.3. The field evidence of the phreatic explosions of Tsurumi-dake in the period younger than 6,300 years was obtained around the foot of the volcano.Some of the results of this investigation were orally presented on some meetings of academic society.

日本九州中部有四座活火山，即都见岳火山、九州火山、阿索火山和云仙火山。我们调查了火山的喷发历史。本研究的结果如下：1.作为云仙火山联合大学研究小组地质小组的成员，观察并描述了熔岩穹丘的生长顺序。日本地质调查局将在本财政年度末出版云仙火山的地质图。2.在距阿索破火山口约90 km处发现了被阿索-4火山碎屑流吹倒和烧毁的大树。这些树的出现为估算远区阿索-4火山碎屑流的温度和速度提供了重要信息，并阐明了阿索火山中岳15,000年来的喷发方式。根据这一结果，提出了中岳的初步危险图。鹤见岳火山爆发的现场证据在不到6,300年的时间里在火山脚下获得。一些调查结果在学术团体的一些会议上口头介绍。

项目成果

下山正一: "Aso-4火砕流に焼かれた巨木" 第四紀研究. 33. 107-112 (1994)

Shoichi Shimoyama：“Aso-4 火山碎屑流烧毁的巨树”第四纪研究 33. 107-112 (1994)。

渡辺一徳: "K-Arages of Unzen volcano in Kyushu,Japan-with some aspects of geology of Mayu-yama-" Mem.Fac.Educ.Kumamoto Univ.(Nat.Sci.). 42. 35-41 (1993)

Kazunori Watanabe：“日本九州云仙火山的 K-Arages - 以及 Mayu-yama 地质学的一些方面 -”Mem.Fac.Educ.Kumamoto Univ.(Nat.Sci.) 42. 35-41 (1993)。

Koji Ono, Kazunori Watanabe and Masao Komazawa: "Structure of Aso caldera besed on data of gravity anomaly" Japan.Chikyu Monthly. No.172. 686-690 (1993)

Koji Ono、Kazunori Watanabe 和 Masao Komazawa：“基于重力异常数据的阿苏火山口结构”日本。地球月刊。

小野晃司: "Ash eruption of Naka-dake,Aso volcano,Japan" Jour.Volc.Geotherm.Res.Spec.Issue(予定). (1995)

Koji Ono：“日本阿苏火山中岳火山灰喷发”Jour.Volc.Geotherm.Res.Spec.Issue（计划）（1995 年）。

渡辺一徳: "Hazard maps of Naka-dake,Aso volcano,Japan" Mem.Fac.Educ.Kumamoto Univ.(Nat.Sci.). 43. 25-37 (1994)

Kazunori Watanabe：“日本阿苏火山中岳的危险地图”Mem.Fac.Educ.Kumamoto Univ.（Nat.Sci.）43. 25-37（1994）。