2023 - 2025 Determination of velocity of debris and mudflows by using optical-fibers and distributed acoustic sensing system
2022 - 2025 超高密度多点地震観測と高精度映像分析による爆発的噴火ダイナミクスの解明
2020 - 2022 火山性低周波地震の波形解析に基づく発生過程の解明と火山活動監視への応用
Papers (4)：
Laura Mercado Solórzano, Indira Molina, Hiroyuki Kumagai, Kimiko Taguchi, Roberto Torres, Lina Constanza García Cano, Cristian Mauricio López. Temporal evolution of the magmatic system at Nevado del Ruiz Volcano (Colombia) inferred from long-period seismic events in 2003-2020. Journal of Volcanology and Geothermal Research. 2023. 438. 107827-107827
Roberto Torres, Hiroyuki Kumagai, Kimiko Taguchi. Source models of long-period seismic events at Galeras volcano, Colombia. Geophysical Journal International. 2021. 227. 3. 2137-2155
Kimiko Taguchi, Hiroyuki Kumagai, Yuta Maeda, Roberto Torres. Empirical formula for the quality factors of crack resonances and its application to the estimation of source properties of long-period seismic events at active volcanoes. Geophysical Journal International. 2020. 224. 3. 2131-2148
Kimiko Taguchi, Hiroyuki Kumagai, Yuta Maeda, Roberto Torres. Source Properties and Triggering Processes of Long-Period Events Beneath Volcanoes Inferred From an Analytical Formula for Crack Resonance Frequencies. Journal of Geophysical Research: Solid Earth. 2018. 123. 9. 7550-7565
Lectures and oral presentations (17)：
Amplitude and phase analysis of ground vibration waveform associated with the debris flow observed by the DAS system at Sakurajima volcano
(2024)
Analysis of seismograms associated with the debris flow at Sakurajima volcano, Japan, observed by the DAS system
(12th EGU Galileo Conference: Fibre Optic Sensing in Geosciences 2024)
Analysis of seismic waveforms associated with the debris flow along the Nojiri River, Sakurajima, on 29 November 2022 observed by the DAS system
(2023)
Source properties and scaling relations of volcanic long-period events estimated from crack model and seismic moments
(Japan Geoscience Union Meeting 2022 2022)
