Updated on 2026/04/15
地震の物理、地震波動伝搬に関する研究、様々な地震データを機械学習に適用した研究を行っています。また、低コストのMEMSセンサを使った市民参加型の地震計ネットワークの構築を目指して活動もしています。また、災害時における個人個人の属性に応じた動的避難誘導アプリの開発も行っています。
大学院生募集中ですので興味のある方はご連絡ください。
Ph.D. ( University of California, Berkeley )
繰り返し地震
Machine Learning
Deep Learning
Neural Network
Prediction of real time seismic intensity
深層学習
Hydraulic Fracturing
Stress Drop
Induced earthquake
Shale gas
Moment Tensor
Inversion
Focal mechanism
MEMS accelerometer
市民参加型地震計
低コスト地震計
Citizen Seismology
Wave propagation
Earthquake Mechanism
Earthquake Source Process
Natural Science / Solid earth sciences
Energy Engineering / Earth resource engineering, Energy sciences
University of California, Berkeley Department of Earth and Planetary Science Seismological Laboratory
2003.9 - 2009.12
Country： United States
Kyoto University Graduate School of Science Division of Earth and Planetary Science
2000.4 - 2003.3
Shinshu University
1996.4 - 2000.3
Country： Japan
The University of Tokyo Earthquake Research Institute Volcano Research Center Visiting Associate Professor
2026.4
Yokohama City University Graduate School of Data Science Associate Professor
2026.4
Yokohama City University School of Science Graduate School of Nanobioscience Department of Materials System Science Associate Professor
2012.4 - 2026.3
Schlumberger Cambridge Research Geophysics Research Scientist
2009.8 - 2012.1
公益社団法人日本地震学会 選挙管理委員会委員
2022.4 - 2024.3
Committee type：Academic society
Automated Classification of Volcanic Earthquakes Using Transformer Encoders: Insights into Data Quality and Model Interpretability Reviewed
Yugo Suzuki, Yohei Yukutake, Takao Ohminato, Masami Yamasaki, Ahyi Kim
Seismological Research Letters 2025.9
Reappraisal of volcanic seismicity at the Kirishima volcano using machine learning Reviewed
Yohei Yukutake, Ahyi Kim, Takao Ohminato
Earth, Planets and Space 75 ( 1 ) 2023.12
Development of a high-performance seismic phase picker using deep learning in the Hakone volcanic area Reviewed
Ahyi Kim, Yuji Nakamura, Yohei Yukutake, Hiroki Uematsu, Yuki Abe
Earth, Planets and Space 75 ( 1 ) 2023.5
Using a Hierarchical Temporal Memory Cortical Algorithm to Detect Seismic Signals in Noise Reviewed
Micheletto, R, K. Takahashi, A. Kim
Intelligent Computing 1 855 - 863 2018.11
Source Characteristics and Geological Implications of the January 2016 Induced Earthquake Swarm near Crooked Lake, Alberta Reviewed
Ruijia Wang, Yu Jeffrey Gu, Ryan Schultz, Miao Zhang, Ahyi Kim
Geophysical Journal International 2 ( 210 ) 979 - 988 2017.5
Can slip heterogeneity be linked to earthquake recurrence? Reviewed
Kate Huihsuan Chen, Iyin Chen, Ahyi Kim
GEOPHYSICAL RESEARCH LETTERS 43 ( 13 ) 6916 - 6923 2016.7
Changes in repeating earthquake slip behavior following the 2004 Parkfield main shock from waveform empirical Green's functions finite-source inversion Reviewed
Ahyi Kim, Douglas S. Dreger, Taka'aki Taira, Robert M. Nadeau
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 121 ( 3 ) 1910 - 1926 2016.3
Source analysis of a potential hydraulic-fracturing-induced earthquake near Fox Creek, Alberta Reviewed
Ruijia Wang, Yu Jeffrey Gu, Ryan Schultz, Ahyi Kim, Gail Atkinson
GEOPHYSICAL RESEARCH LETTERS 43 ( 2 ) 564 - 573 2016.1
The Cardston Earthquake Swarm and Hydraulic Fracturing of the Exshaw Formation (Alberta Bakken Play) Reviewed
Ryan Schultz, Shilong Mei, Dinu Pana, Virginia Stern, Yu Jeffrey Gu, Ahyi Kim, David Eaton
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 105 ( 6 ) 2871 - 2884 2015.12
Toward understanding focal mechanism of hydraulic fracturing induced earthquakes using constrained inversion: method and synthetic tests Reviewed
S. Iida, A. Kim
Proceedings of the 12th SEGJ International symposium 224 - 227 2015.11
Low Apparent Stress Observed for M-w <-0.6 Microearthquakes Recorded during Hydraulic-Fracturing Stimulation in the Carthage Cotton Valley Gas Field Reviewed
Ahyi Kim, Shuhei Iida
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 105 ( 4 ) 2313 - 2320 2015.8
Towards Constructing Regional Active Citizen Seismology Network Reviewed
A. Kim, H. Uematsu, S. Iwamoto
interaction 2015 284 - 286 2015.2
GPS source solution of the 2004 Parkfield earthquake Reviewed
N. Houlie, D. Dreger, A. Kim
SCIENTIFIC REPORTS 4 2014.1
Non-linear 3-D Born shear waveform tomography in Southeast Asia Reviewed
Mark P. Panning, Aimin Cao, Ahyi Kim, Barbara A. Romanowicz
GEOPHYSICAL JOURNAL INTERNATIONAL 190 ( 1 ) 463 - 475 2012.7
Microseismic monitoring field test using surface, shallow grid, and downhole arrays Reviewed
J. Drew, P. Primiero, K. Brook, D. Raymer, T. Probert, A. Kim, D. Leslie
SEG Technical Program Expanded Abstract 31 1 - 5 2012.1
Uncertainties in full waveform moment tensor inversion due to limited microseismic monitoring array geometry Reviewed
A Kim
SEG Technical Program Expanded Abstracts 30 1509 - 1513 2011.11
Moderate Earthquake Ground-Motion Validation in the San Francisco Bay Area Reviewed
Ahyi Kim, Douglas S. Dreger, Shawn Larsen
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 100 ( 2 ) 819 - 825 2010.4
Ahyi Kim, Douglas S. Dreger
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 113 ( B7 ) 2008.7
P wave attenuation structure by spectral inversion of seismic waveforms Reviewed
FUJIHARA Satoru, KIM Ahyi
BUTSURI-TANSA(Geophysical Exploration) 58 ( 6 ) 617 - 629 2005.12
The 2000 Tottori-ken Seibu Earthquake - Seismic activity derived from the compilation of DPRI, JMA and Hi-net data -
ENESCU Bogdan
京都大学防災研究所年報 ( 44 ) 273 - 282 2000
地震語彙の構築と地震LOD
上松 大輝, 金 亜伊, 武田 英明
2023年度人工知能学会全国大会（第37回） 2023.6
Estimation of volcanic earthquakes at Kirishima volcano using machine learning
Yukutake Yohei, Kim Ahyi
PROGRAMME AND ABSTRACTS THE VOLCANOLOGICAL SOCIETY OF JAPAN 2022 128 - 128 2022
Study on Function Maintenance in Indoor Space during Earthquake: Part 16: Development of Rapid Indoor Damage Estimation Method using Motion Videos: Creating a Damage Judgement Questionnaire for Simulation Videos
村木唯人, 福井弘久, 正月俊行, 浜田宏一, 中西良成, 高橋佑汰, 佐藤栄児, KIM Ahyi
日本建築学会大会学術講演梗概集・建築デザイン発表梗概集(CD-ROM) 2022 2022
Study on Function Maintenance in Indoor Space during Earthquake: Part17: Development of Rapid Indoor Damage Estimation Method using Motion Videos: Creation of Indoor Damage Simulation Videos
高橋佑汰, 福井弘久, 正月俊行, 浜田宏一, 中西良成, KIM Ahyi, 佐藤栄児
日本建築学会大会学術講演梗概集・建築デザイン発表梗概集(CD-ROM) 2022 2022
Study on Function Maintenance in Indoor Space during Earthquake: Part 18: Development of Rapid Indoor Damage Estimation Method using Motion Videos: Result of the Damage Judgement Questionnaire for Simulation Videos
正月俊行, 浜田宏一, 中西良成, 高橋佑汰, 佐藤栄児, KIM Ahyi, 福井弘久
日本建築学会大会学術講演梗概集・建築デザイン発表梗概集(CD-ROM) 2022 2022
Construction of a low-cost indoor 3D model using a depth camera and machine learning and its application to seismic behavior simulation
高橋佑汰, 上松大輝, KIM Ahyi, 正月俊行, 中西良成
日本地震学会秋季大会講演予稿集(CD-ROM) 2022 2022
Development of a Low-cost Seismic behavior prediction system for furniture and nonstructural components using RGB-D Camera and Machine Learning
高橋佑汰, 上松大輝, KIM Ahyi, 正月俊行
日本地球惑星科学連合大会予稿集(Web) 2022 2022
An HTM based cortical algorithm for detection of seismic waves
Ruggero Micheletto, Ahyi Kim
CoRR abs/1707.01642 2017.7
Feature Extraction and Classification of Volcanic Earthquake Waveforms Using an Autoencoder
Japan Geoscience Union 2025 Annual Meeting 2025.5
Development of a real-time seismic intensity prediction model using a graph neural network
Gota Watanabe, Ahyi Kim
Japan Geoscience Union 2025 Annual Meeting 2025.5
Development of an Interpretable Volcanic Earthquake Classification Method Using Transformer Encoders
Yugo Suzuki, Ahyi Kim, Masami Yamasaki
2023.11
深層学習と模擬データを用いたリアルタイム震度の予測
太田 杏樹, 金 亜伊, 矢崎 友貴乃, 久保 久彦, 山崎 眞見
日本地震学会2023年度秋季大会 2023.10
深層学習による高精度な火山性地震の位相検出モデルの構築と転移学習の検討
中村 勇士, 金 亜伊, 行竹 洋平, 安部 祐希
日本地震学会2023年度秋季大会 2023.11
市民参加型低コスト地震計ネットワークの構築と持続可能な地震防災、減災プロジェクトの推進
矢崎 友貴乃, 鈴木 悠悟, 上松 大輝, 金 亜伊, 山崎 眞見
日本地震学会2023年度秋季大会 2023.11
Toward real-time seismic intensity time-series prediction using a graph neural network
Gota Watanabe, Ahyi Kim
2025.10
Tsunami evacuation behavior optimization and dynamic evacuation guidance in Kanazawa-Hakkei using multi-agent simulation
Miho Fujita, Ahyi Kim
Japan Geoscience Union 2025 Annual Meeting 2025.5
Development and Field Verification of a Dynamic Evacuation Guidance System Considering Individual Attributes
Haruho Nagano, Ahyi Kim
2025.10
Towards Constructing a High-precision Seismic Phase picker for Volcanic Earthquakes Using Deep Learning: Performance Evaluation with Various Models and Examination of Transfer Learning
Yuji Nakamura, Ahyi Kim, Yohei Yukutake, Yuki Abe
JpGU annual meeting 2023 2023.5
Toward Sustainable Earthquake Disaster Prevention and Mitigation Project: Interdisciplinary Seismological Research Design
Yukino Yazaki, Yugo Suzuki, Yuta Takahashi, Momoko Nakamura, Hiroki Uematsu, Ahyi Kim, Masami Yamazaki
JpGU annual meeting 2023 2023.5
Construction of a real-time seismic intensity prediction model using deep learning: evaluation of data augmentation with synthetic data
Ahyi Kim, Momoko Nakamura, Anju Ohta, Yukino Yazaki, Hisahiko Kubo
JpGU annual meeting 2023 2023.5
市民参加型低コスト地震計ネットワークにおける地震波位相検測のための機械学習モデルの構築
矢崎 友貴乃, 中村 勇士, 上松 大輝, 金 亜伊, 山崎 眞見
日本地震学会2023年度秋季大会 2023.11
Development of an Interpretable Volcanic Earthquake Classification Method Using Transformer,
Yugo Suzuki, Yukutake Yohei, Masami Yamasaki, Ahyi Kim
International symposium “Submarine caldera volcanoes" 2024.3
Validation of Interpretability Enhancement in Volcanic Earthquake Classification Using Transformer Encoders
JpGU annual meeting 2024 2024.5
Toward a High-Performance Volcanic Earthquake Phase Detection: R2AU-Net Transfer Learning and Hyperparameter Analysis
JpGU annual meeting 2024 2024.5
Towards an Interpretable Volcanic Earthquake Classification Method Using Transformer Encoders
Yugo Suzuki, Yohei Yukutake, Masami Yamazaki, Ahyi Kim
2024.6
R2AU-Net and Transfer Learning for Improved Seismic Phase Detection in Volcanic Regions
Yuji NAKAMURA, Yukino YAZAKI, Yohei YUKUTAKE, Yuki ABE, Ahyi KIM
the 21st Annual Meeting of the Asia Oceania Geosciences Society (AOGS2024) 2024.6
Feasibility of Real-time Seismic Intensity Prediction by Combining Deep Learning and Simulated Data
Ahyi KIM, Anju OHTA, Yukino YAZAKI, Masami YAMASAKI, Hisahiko KUBO
the 21st Annual Meeting of the Asia Oceania Geosciences Society (AOGS2024) 2024.6
Toward Constructing Disaster Mitigation Community Sensor Network in Yokohama, Japan Invited
Kim. A. T. Takeuchi, H. Uematsu, Z. Sun, K. Koizumi, K. Takahashi, Y. Matsumoto
13th Annual Meeting Asia Oceania Geosciences Society 2016.8
Analysis of Source Characteristics of Earthquakes Potentially Induced by Wastewater Injection in Peace River, Alberta, Canada
Japan Geoscience Union 2025 Annual Meeting 2025.5
Fracture monitoring and characterization
A. Kim, I. Bradford, J. Desroches
横浜市立大学理学部長賞
2021.4
Ahyi Kim
Yahoo! Japan Prize
2017.3 LOD challenge Japan
Yokohama City, University Kim Laboratory
IoT Prize
2017.3 LOD challenge Japan
Yokohama City, University Kim Laboratory
⾦沢区における津波災害時動的避難誘導と避難者動態把握システムの構築
2025.6 - 2026.3
Yokohama City University
Authorship：Principal investigator
Development of real-time seismic intensity prediction method using IoT sensors and machine learning
Grant number：22K04635 2022.4 - 2025.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C) Grant-in-Aid for Scientific Research (C)
Ahyi Kim
Grant amount：\3900000 （ Direct Cost: \3000000 、 Indirect Cost：\900000 ）
相似地震を用いた火山・内陸域でのゆっくり滑りの検出
Grant number：22K03752 2022.4 - 2025.3
日本学術振興会 科学研究費助成事業 基盤研究(C) 基盤研究(C)
行竹 洋平, 金 亜伊
Grant amount：\4030000 （ Direct Cost: \3100000 、 Indirect Cost：\930000 ）
Construction of IoT seismic sensor network: demonstration experiment and data utilization
2021.6 - 2022.3
Yokohama City University
Ahyi Kim
Authorship：Principal investigator
岩手県沖で発生する様々な繰り返し地震系列の破壊過程に関する研究
2017.10 - 2018.3
東北大学災害科学国際研究所 平成29年度(第2回)東北大学災害科学国際研究所リソースを活用した共同研究助成
金 亜伊
Authorship：Principal investigator Grant type：Competitive
若い世代の地震・防災リテラシーの向上と地域ネットワークの構築
2015.7 - 2016.3
横浜市立大学
Ahyi Kim
Authorship：Principal investigator
水圧破砕によって誘発される地震のメカニズムの解明
Grant number：15KK0171 2015 - 2022
文部科学省 国際共同研究加速基金(国際共同研究強化) 国際共同研究加速基金(国際共同研究強化)
金 亜伊
Authorship：Principal investigator Grant type：Competitive
本研究は水圧破砕によって誘発される地震のメカニズムを明らかにする事を目的としている．水圧破砕はシェールガス開発等において使用される技術で，国内においても生産実験が開始される等近年注目を浴びている。しかし当該技術が開発の生産性をあげる一方で，有感地震や帯水層汚染の報告にその安全性が懸念されている．誘発地震の発生のメカニズムについての知見を深めることで, 流体注入による亀裂の生成，成長と貯留層の特性に対する理解が進み，帯水層汚染や周辺断層への刺激による災害を抑制し，安全かつ効率的な資源開発の実現に貢献する事を目指している.
本研究は基課題が2013年に開始し, 国際共同研究強化については2015年度開始を予定していたが, 代表者の産前, 産後, 育児休暇などにより開始が大幅に遅れてしまった. そのことによって連携先の状況や, 研究課題を取り巻く環境に変化が生まれている. そのため今年度は連携先と相談しながら予定した研究計画を見直した. 当初予定していたモーメントテンソル解析や応力降下量の解析については先方での研究が進んでいるので, その先に予定していた大きな地震に関する震源時間関数及びすべり量分布について解析し, 誘発地震のメカニズムについての理解を深める事を目指す. 今年度はまず当初使用予定の連携先にある膨大な観測記録の整理をし直すところから始まり, 数個の大きめの地震から震源時間関数を得ることができた. 今後は解析する地震を増やし, 震源時間関数やすべり量に関する時空間変化について検証し, それらの破壊様式を支配する要因について調べていく.
若い世代の地震・防災リテラシーの向上と地域ネットワークの構築
2014.7 - 2015.3
Yokohama City University
Ahyi Kim
Authorship：Principal investigator
Source Characterization of Hydraulic Fracturing Induced Micro Seismicity
Grant number：25870600 2013 - 2015
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Young Scientists (B) Grant-in-Aid for Young Scientists (B)
KIM AHYI
Authorship：Principal investigator Grant type：Competitive
Grant amount：\2340000 （ Direct Cost: \1800000 、 Indirect Cost：\540000 ）
Understanding the source characteristics of hydraulic-fracturing-induced microearthquakes is expected to provide better understanding of both the fracturing process and the influence of pre-existing structures on the distribution of events. However, details of the source characteristics of microearthquakes remain largely unknown. To address this issue, we estimated the apparent stress of the microearthquakes observed during the hydraulic fracturing in the Carthage Cotton Valley Gas Field. As a result, lower apparent stress was observed for the events striking subparallel to the maximum horizontal compressional stress axis. This implies the mechanism of these events could be different from that of events optimally oriented for failure.
In addition, we developed more direct method to retrieve non-double couple component from hydraulic fracturing induced microearthquakes constraining the mechanism to be shear slip, tensile displacement, or combination of these mechanisms.
Seismology educational system utilizing low-cost MEMS sensor
2012.7 - 2013.3
Yokohama City University
Ahyi Kim
Authorship：Principal investigator
