Updated on 2023/04/20

写真a

 
OKUNO MITSURU
 
Organization
Graduate School of Science Department of Geosciences Professor
School of Science Department of Geosciences
Title
Professor
Affiliation
Institute of Science
Contact information
メールアドレス
Affiliation campus
Nakamozu Campus

Position

  • Graduate School of Science Department of Geosciences 

    Professor  2022.04 - Now

  • School of Science Department of Geosciences 

    Professor  2022.04 - Now

Degree

  • Ph.D （ Nagoya University ） (   Graduate School of Human Informatics, Nagoya University )

  • Master (Letters) （ Kanazawa University ） (   Graduate School of Letters, kanazawa University )

  • bachelor of science （ Kagoshima University ） (   Institute of Earth Science, Faculty of Science, Kagoshima University )

Research Areas

  • Natural Science / Solid earth sciences  / Geology

  • Humanities & Social Sciences / Geography  / Geography

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Disaster prevention engineering  / Natural disaster / Disaster prevention science

  • Natural Science / Human geosciences  / Radiocarbon chronology

Research Interests

  • Tephro-stratigraphy

  • Radiocarbon age determination

  • Volcanic geomorphology and geology

Professional Memberships

  • 日本地形学連合

  • 日本地理学会

  • 日本地質学会

  • 日本応用地質学会

  • 日本火山学会

  • 日本第四紀学会

  • 日本自然災害学会

  • 東京地学協会

  • 東北地理学会

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Awards

  • Paper Award 2020

    Shinji Toda, Masayuki Torii, Mitsuru Okuno, Asaka Konno, Hiroki Ono, Naoya Takahashi

    2022.11   Japanese Society for Active Fault Studies   Evidence for Holocene paleoseismic events on the 2016 Kumamoto earthquake rupture zone within the Aso caldera: A trench excavation survey at Kurokawa, the town of Minami-Aso, southwest Japan

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    Country：Japan

  • 日本第四紀学会学術賞

    奥野 充

    2019.08   日本第四紀学会   放射性炭素年代測定に基づく第四紀後期の火山活動史と古環境・考古編年への貢献

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    Country：Japan

    噴火史と人間社会と自然環境へのインパクトに関する研究

Job Career (off-campus)

  • Osaka Metropolitan University   Department of Geosciences, Graduate School of Science   Professor

    2022.04 - Now

  • Osaka Prefecture University   School of Science, College of Life, Environment, and Advanced Sciences

    2022.04 - Now

  • Fukuoka University   Department of Earth System Science, Faculty of Science

    1998.04 - 2022.03

Education

  • Nagoya University   The second semester of doctoral program   Graduated/Completed

    1994.04 - 1997.03

Papers

  • Epilogue of the Special Issues on “Understanding Volcanoes by Integrating Eruptive History Research and Volcano Observations”

    Okuno Mitsuru, Iguchi Masato, Miyoshi Masaya, Miura Daisuke, Kobayashi Makoto, Hashimoto Takeshi, Ohba Takeshi, Sato Eiichi, Takarada Shinji

    BULLETIN OF THE VOLCANOLOGICAL SOCIETY OF JAPAN   67 ( 3 )   251 - 254   2022.09（ ISSN:04534360 ）

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  • Post-caldera volcanism and environmental changes in Aira Caldera, inner Kagoshima Bay, SW Japan Reviewed

    Kano Kazuhiko, Yanagisawa Yukio, Okuno Mitsuru, Nakagawa Mitsuhiro, Uchimura Kimihiro, Miki Daisuke, Iguchi Masato

    The Journal of the Geological Society of Japan   128 ( 1 )   43 - 62   2022.04（ ISSN:00167630 ）

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    Publishing type：Research paper (scientific journal)  

    <p>This paper describes the sedimentological, petrographic, and paleontological features of core samples recovered when drilling a seismic observation well on Shinjima Island, which emerged from the submarine floor of Aira Caldera in 1780 by magma intrusion. The results provide information on post-caldera volcanic activity and environmental change in Aira Caldera. Shortly after its formation at ~30 cal ka BP, Aira Caldera was filled with freshwater, but seawater suddenly replaced the freshwater at ~14.5 cal ka BP as sea level rose after the last glacial maximum. Sakurajima Volcano, located on the southern rim of the caldera, intermittently ejected dacitic tephras into the freshwater caldera lake, and Wakamiko Volcano, located in the northeastern part of the lake, also erupted explosively, releasing sublacustrine rhyolitic density currents over the lake floor. Lahars and floods carried much larger volumes of epiclastic material into the lake. Shortly before the transition from freshwater to seawater, Sakurajima and Wakamiko Volcanoes temporarily became calm and fine particles accumulated in the lake. The explosive eruptions at Wakamiko Volcano resumed at ~13 cal ka BP, culminating in a large eruption that formed Wakamiko Caldera and a thick accumulation of Shinjima Pumice. The explosive eruptions almost ceased with the minor eruption of the Southern Shinjima Pumice immediately after the caldera-forming event. The Southern Shinjima Pumice contains pumice and ash of the Sakurajima Satsuma tephra, indicating that the largest explosive eruption from Sakurajima Volcano occurred during the period between the eruptions of the Shinjima Pumice and the Southern Shinjima Pumice. Since the caldera-forming eruption, Wakamiko Caldera has become quiescent while Sakurajima Volcano has intermittently erupted, producing fallout tephras and lava flows. The Sakurajima tephras and volcaniclastic materials reworked from surrounding areas have accumulated on the submarine floor of Aira Caldera.</p>

    DOI： 10.5575/geosoc.2022.0003

  • 14C wiggle-matching age of tree rings in the Towada-Hachinohe pyroclastic flow deposits

    Kosuke Sakata, Mitsuru Okuno, Toshiyuki Fujiki, Tetsuo Kobayashi

    The Nagoya University Chronological Research   ( 6 )   22 - 26   2022.03

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    Authorship：Corresponding author   Publishing type：Research paper (bulletin of university, research institution)  

  • 姶良カルデラの第四紀後期の地殻変動と火山活動 Reviewed

    森脇 広, 永迫俊郎, 奥野 充

    火山   67 ( 1 )   31 - 44   2022.03

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    Authorship：Last author   Publishing type：Research paper (scientific journal)  

    DOI： 10.18940/kazan.67.1_31

  • Introduction of the Special Issues on“Understanding Volcanoes by Integrating Eruptive History Research and Volcano Observations”

    OKUNO Mitsuru, IGUCHI Masato, MIYOSHI Masaya, MIURA Daisuke, KOBAYASHI Makoto, HASHIMOTO Takeshi, OHBA Takeshi, SATO Eiichi, TAKARADA Shinji

    BULLETIN OF THE VOLCANOLOGICAL SOCIETY OF JAPAN   66 ( 2 )   65 - 70   2021.06（ ISSN:0453-4360 ）

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  • Paleovegetational history on Mangaia, south Cook Islands, eastern Polynesia

    Morikawa Genta, Fujiki Toshiyuki, Sakai Keisuke, Okuno Mitsuru, Moriwaki Hiroshi, Nakamura Toshio

    The Nagoya University bulletin of chronological research   ( 5 )   30 - 37   2021.03

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    Publishing type：Research paper (bulletin of university, research institution)  

    Pollen analysis was conducted on a 750 cm long sediment core from a wetland (21°57'01" S, 157°55'41" W) on the shore of Lake Tiriara, Mangaia Island, Cook Islands. The results showed that fern spores were more abundant from the lowest layer, and secondary vegetation elements such as Trema pollen, and weed elements such as Chenopodiacea pollen, also occurred, confirming that deforestation had already occurred. Conversely, native forest elements such as Ficus and Elaeocarpus pollen grains are present, suggesting that some native forests were still intact. Human settlements on the island of Mangaia were initially limited to the coast, but by the 16th century (1500 AD) they had expanded inland. Approximately 16th centuries of inland migration corresponds to a depth of 300 cm. During this time, tree pollen grains such as Ficus almost disappeared, and instead Arecaceae and Poaceae pollen grains, and fern spores rapidly increased. This is thought to be the result of the migration of humans from coastal areas to inland areas and further deforestation. Coconut (Cocos nucifera) and whistling pine (Casuarina equisetifolia), which were probably introduced by Polynesians, are estimated to have been brought to Mangaia Island in 1000 cal AD and 1400 cal AD, respectively. In addition, Caribbean pine (Pinus caribaea) increases from around 1980 cal AD, and this species was planted by the Cook Islands government from 1984 AD to prevent soil erosion, with concordant results.

    DOI： 10.18999/nagubc.5.30

    CiNii Article

    Other URL： https://nagoya.repo.nii.ac.jp/records/2001460

  • Formation process of swamp sediments of the Karako Lowland in northern Shimabara Peninsula, Western Japan

    The Nagoya University bulletin of chronological research   ( 5 )   38 - 43   2021.03

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    Publishing type：Research paper (international conference proceedings)  

    DOI： 10.18999/nagubc.5.38

  • 14C wiggle-matching age determination of the Kyoho eruption of Kirishima-Shinmoedake volcano, SW Japan

    The Nagoya University bulletin of chronological research   ( 5 )   44 - 48   2021.03

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    Authorship：Corresponding author   Publishing type：Research paper (bulletin of university, research institution)  

    DOI： 10.18999/nagubc.5.44

  • stratigraphy and origin of the uppermost Pleistocene to Holocene succession exposed on the Shinjima (Moeshima) Island, inner Kagoshima Bay, SW Japan Reviewed

    Kano, K, Yanagisawa, Y, Uchimura, K, Okuno, M, Nakamura, T

    Journal of Geological Society of Japan   126 ( 9 )   519 - 535   2020.09（ ISSN:0016-7630 ）

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.5575/geosoc.2020.0024

  • Radiocarbon dating for refining the age of the Zenkoji debris avalanche deposit, Usu Volcano, Hokkaido, Japan

    Okuno Mitsuru, Ui Tadahide, Kagaya Nire

    Fukuoka University Science Reports   50 ( 2 )   108 - 113   2020.09（ ISSN:0386-118X ）

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    Publishing type：Research paper (bulletin of university, research institution)  

  • 鹿児島県湧水町の三日月池の堆積物の層序と年代

    長友拓磨, 奥野 充, 藤木利之, 中村俊夫, 南 雅代, 成尾英仁, 寺田仁志

    名古屋大学年代測定研究   ( 4 )   35 - 38   2020.06

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    Publishing type：Research paper (bulletin of university, research institution)  

    DOI： 10.18999/nagubc.4.35

  • Shell Color Polymorphism in Populations of the Intertidal Gastropod Nerita Plicata (L., 1758) from the Cook Islands Reviewed

    Kawai, K, Moriwaki, H, Okuno, M, Fujiki, T, Mccormack, G, Cowan, G, Maoate, T

    South Pacific Studies   40 ( 2 )   63 - 72   2020.03

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    Publishing type：Research paper (scientific journal)  

  • 熊本地震地表地震断層の阿蘇カルデラ内の完新世活動履歴―南阿蘇村黒川地区トレンチ調査― Reviewed

    遠田晋次, 鳥井真之, 奥野 充, 今野明咲香, 小野大輝, 高橋直也

    活断層研究   ( 51 )   2019.12

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    Publishing type：Research paper (scientific journal)  

  • 島嶼域での災害研究における広域テフラと火口湖・カルデラ湖の役割―インドネシアのバリ島からアリューシャン列島フォー・マウンテンズ諸島まで―

    奥野 充

    月刊地球   41   2019.11

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    Publishing type：Research paper (bulletin of university, research institution)  

  • 中部九州，今市火砕流堆積物中の黒曜石レンズの化学組成：阿蘇-4火砕流との識別

    坂本房江, 角縁 進, 木戸道男, 松村秀喜, 熊本智之, 澤田武美, 奥野 充, 英彦山団研グループ

    福岡大学理学集報   49 ( 2 )   79 - 88   2019.09

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    Publishing type：Research paper (bulletin of university, research institution)  

  • 九州北東部，伽藍岳における最近約2200年間の水蒸気噴火

    筒井正明, 奥野 充, 藤沢康弘, 小林哲夫

    福岡大学理学集報   48 ( 2 )   89 - 97   2019.09

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    Publishing type：Research paper (bulletin of university, research institution)  

  • Eruption age of the Haruna Futatsudake Pumice (Hr-FP), central Japan, by radiocarbon wiggle matching with special reference to a 14C dataset developed from a Japanese tree Reviewed

    Okuno, M, Nakumura, T, Sakamoto, M, Yatsuzuka, S, Oikawa, T, Geshi, N, Hoshino, Y, Takahashi, T

    Quaternary International   527   29 - 33   2019.08（ ISSN:1040-6182 ）

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    Publishing type：Research paper (scientific journal)  

    © 2019 Elsevier Ltd and INQUA Haruna volcano, located in central Japan, erupted the Hr-FA and Hr-FP tephras during a period of several decades around the 6th century. To estimate the precise age of the second eruption, we performed AMS radiocarbon dating on a charred wood trunk (29 rings) collected from a pyroclastic flow deposit of the Hr-FP, and obtained a year range of cal AD 424–444 (2σ) using 14C wiggle matching of seven dates with the IntCal13 dataset. However, this result is approximately 100 years older than the inferred calendar year from Sue pottery and Kofun (ancient tomb mound) chronologies and is also inconsistent with the stratigraphic relation of the Hr-FA and Hr-FP. For the 5−6th centuries when the Hr-FP might have erupted, 14C dating was performed on Japanese trees whose precise chronologies were established dendrochronologically. The 14C ages of the annual rings of these trees showed local offsets about 30 years older than those of IntCal13. This tendency has been observed in several studies on trees in Japan and is consistent with the results from the Japanese cedar tree. As a preliminary study, the Hr-FP data were wiggle matched with the existing local dataset for AD 340–545 obtained from one tree in central Japan. The year of the outermost annual ring of the sample tree collected in the Hr-FP tephra is estimated to be cal AD 538−559 (79.0% probability). This estimated age of the Hr-FP eruption is consistent with the archaeological chronology (Sue pottery and Kofun) and tephrochronology around Haruna volcano.

    DOI： 10.1016/j.quaint.2018.12.023

  • 主成分化学組成と14C年代による白山火山に産出するアルカリ岩質テフラ（Hm-2テフラ）と鬱陵島テフラとの対比 Reviewed

    東野外志男, 曽田祐介, 奥野 充

    地学雑誌   128 ( 3 )   439 - 452   2019.06

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.5026/jgeography.128.439

  • 阿蘇カルデラ壁斜面における斜面崩壊の発生頻度 Invited Reviewed

    西山賢一, 鳥井真之, 横田修一郎, 若月 強, 井上 弦, 中尾賢一, 星出和裕, 奥野 充

    第四紀研究   58 ( 2 )   149 - 162   2019.04（ ISSN:0418-2642 ）

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    Publishing type：Research paper (scientific journal)  

    <p>Colluvium deposits distributed at the foot of the caldera wall of the Aso volcano are estimated to be piled-up materials derived from steep slopes. They are composed of poorly sorted gravel beds including andesite, welded tuff, and tephra blocks, and form sharp alluvial cones. Therefore, numerous shallow landslides caused by heavy rainfall and/or large earthquake vibrations may have brought about these deposits after the completion of the caldera wall.</p><p>In order to determine the ages of depositional events of such materials, we carried out the dating of three charred materials and four paleosols collected from the colluvium deposits. Calendar-calibrated AMS <sup>14</sup>C dating indicates that more than 15 depositional events occurred during the past 26,000 years at five investigation points. Based on this relation, the recurrence interval of such events is estimated to be on the order of 10<sup>3</sup> years in this area.</p>

    DOI： 10.4116/jaqua.58.149

    CiNii Article

  • Human resilience and resettlement among the Islands of Four Mountains, Aleutians, Alaska Reviewed

    Hatfield V, Nicolaysen K, West D, Krylovich O, Bruner K, Savinetsky A, Vasyukov DD, MacInnes BT, Khasanov BF, Persico L, Okuno M

    Quaternary Research   91 ( 3 )   917 - 933   2019.03

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  • 地形から見た北海道胆振東部地震での斜面崩壊プロセス:厚真町桜丘地区の例

    奥野 充, 北園芳人, 古市剛久, 鳥井真之

    自然災害研究協議会西部地区部会報・論文集   ( 43 )   33 - 36   2019.02

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    Publishing type：Research paper (conference, symposium, etc.)  

  • A 7300-yr-old environmental history of seabird, human, and volcano impacts on Carlisle Island (the Islands of Four Mountains, eastern Aleutians, Alaska) Reviewed

    Kuzmicheva, E.A, Smyshlyaeva, O.I, Vasyukov, D.D, Khasanov, B.F, Krylovich, O. A, Okuno, M, West, D.L, Hatfield, V.L, Savinetsky, A

    Quaternary Research   91 ( 3 )   934 - 952   2019.01

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  • Chronological study on widespread tephra and volcanic stratigraphy of the past 100,000 years Invited Reviewed

    Mitsuru Okuno

    The Journal of the Geological Society of Japan   125 ( 1 )   41 - 53   2019.01

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.5575/geosoc.2018.0069

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Books and Other Publications

  • 熊本地震の痕跡からの学び

    池辺伸一郎・石村大輔・岩佐佳哉・奥野充・他22名（ Role： Contributor ,  Ⅱ 熊本地震の痕跡）

    熊日出版  2022.03  （ ISBN:9784908313844 ）

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    Total pages：162   Book type：General book, introductory book for general audience

  • Landslides induced by the 2018 Hokkaido Eastern Iburi Earthquake

    Furuichi, T, Yanai, S, Okuno, M, Gomi, T, Torii, M, Osanai, N, Higaki, D, Hayakawa, T, Mizugaki, S, Murakami, Y, Hayashi, S（4.4 Shallow landslides and subsequent sediment discharge in the Towa sub-catchment）

    Hokkaido University Press  2020.09 

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    Total pages：355   Responsible for pages：136-141.   Book type：Scholarly book