Papers - Umeda Koji
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Relationship between helium isotopes and focal depths of low-frequency earthquake, Northeastern Japan
Yamazaki, Y; Narita, A; Umeda, K; Sumino, H; Maeda, T; Amano, T
GEOSCIENCE LETTERS 12 ( 1 ) 2025.5
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Sedimentary Diversity of Tsunami Deposits in a River Channel Associated with the 2024 Noto Peninsula Earthquake, Central Japan
Okada, R; Umeda, K; Motegi, K; Kamataki, T; Amano, T
GEOSCIENCES 15 ( 4 ) 2025.4
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Evaluation of carbon flux through groundwater and river water at the western foothills of Mt. Chokai
Mukuto Morita, Hiroto Kajita, Atsushi Okazaki, Nanami Ueda, Koji Umeda, Etsuo Uchida, Hodaka Kawahata
2024.10
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Geochemical Signature of Deep Fluids Triggering Earthquake Swarm in the Noto Peninsula, Central Japan
Koji Umeda, Yukino Yamazaki, Hirochika Sumino
Geophysical Research Letters 51 ( 13 ) 2024.6
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津軽平野，中里川の破堤堆積物について：令和4年8月前線大雨に伴う現世イベント堆積物
岡田里奈, 小林祐登, 梅田浩司, 鄒 青穎, 井口紗綾
応用地質 64 ( 5 ) 255 - 262 2023.12
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Distribution of Quaternary Volcanic Dike Under the Edifices and Evaluation of Central Conduit Stability by Topographic Analysis Using Contour Lines
NISHIYAMA Nariaki, KAWAMURA Makoto, UMEDA Koji, NIWA Masakazu
Journal of the Japan Society of Engineering Geology 64 ( 3 ) 98 - 111 2023.8
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Identification of Zenikame - Menagawa tephra based on trace-elements microanalysis of volcanic glass shards by LA-ICP-MS
Okada Rina, Kondo Misaki, Umeda Koji, Furusawa Akira, Amano Tadashi
BULLETIN OF THE VOLCANOLOGICAL SOCIETY OF JAPAN 68 ( 2 ) 91 - 98 2023.6
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下北半島，関根浜のイベント堆積物について
木村雄大・岡田里奈・梅田浩司
東北地域災害学研究 59 37 - 40 2023.3
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Modern Fluvial Crevasse-Splay Deposits: Sedimentary Records of the August 2022 Flooding of Nakasato River in Tsugaru Plain
岡田里奈, 小林祐登, 梅田浩司, TSOU Ching-Ying, 井口紗綾
応用地質 64 ( 5 ) 2023
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Identification of Zenikame - Menagawa tephra based on trace-elements microanalysis of volcanic glass shards by LA-ICP-MS
岡田里奈, 近藤美左紀, 梅田浩司, 古澤明, 天野格
火山 68 ( 2 ) 2023
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Identification of Zenikame-Menagawa Tephra Using Major Element Compositions of Amphibole Phenocrysts
WATANABE Hazuki, OKADA Rina, UMEDA Koji, NISHIDA Yuuki
Journal of the Japan Society of Engineering Geology 63 ( 5 ) 228 - 236 2022.12
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Geological record of 18th and 19th century tsunamis along the Japan Sea coast of Tsugaru Peninsula, northwestern Japan
Rina Okada, Koji Umeda, Takanobu Kamataki, Yuki Sawai, Dan Matsumoto, Yumi Shimada, Kei Ioki
MARINE GEOLOGY 453 106905 2022.11
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1804年象潟地震による津波堆積物の層相
長尾優樹，岡田里奈，梅田浩司，鎌滝孝信
東北地域災害学研究 2022.3
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Spatial and seasonal variations in groundwater chemistry in the Owasawa River alluvial fan, Northeast Japan
NAKAMURA Mizuki, UMEDA Koji, IOKA Seiichiro
Journal of Groundwater Hydrology 63 ( 4 ) 279 - 286 2021.11
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津軽地方の鮮新世～前期更新世テフラの記載岩石学的特徴について－火山ガラスの主成分化学組成－
山田淳越，柴 正敏，近藤美左紀，梅田浩司
青森地学 2021
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秋田県北部の沖積低地における洪水堆積物について
宿田涼介・梅田浩司・鎌滝孝信
東北地域災害科学研究 2020.4
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カルデラ火山の外輪山における大規模地すべりの発生年代
吉田怜奈・宿田涼介・五十嵐広大・梅田浩司
東北地域災害科学研究 2020.4
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秋田県北部の沖積低地における津波堆積物の分布様式
網干秀俊・鎌滝孝信・平川知明・宿田涼介・梅田浩司
東北地域災害科学研究 2020.4
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Landslide and debris flow hazard analysis using geographic information system
UMEDA Koji
Journal of the Japan Landslide Society 57 ( 5 ) 155 - 160 2020
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Landslides Triggered by the 2018 Hokkaido Eastern Iburi Earthqu ake
UMEDA Koji, CHIYOYA Kaori, SHIBA Masatoshi, KONDO Misaki
Journal of the Japan Society of Engineering Geology 60 ( 4 ) 172 - 179 2019.10