Kai-Xun Chen
Geophysicist & Seismologist
Kai-Xun Chen
Geophysicist & Seismologist
Postdoctoral Research Fellow
Institute of Earth Sciences, Academia Sinica
128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan
E-mail: kxchen@earth.sinica.edu.tw; wuling510786@gmail.com
EDUCATION & EXPERIENCE
2025/01 – now: Postdoctoral Research Fellow, Institute of Earth Sciences, Academia Sinica
2023/11 – 2024/12: Postdoctoral Research Fellow, Dept. of Geosciences, National Taiwan University
2021/10 – 2023/10: Postdoctoral Research Fellow, Dept. Earth, Environmental and Planetary Sciences, Brown University
2021/08 – 2021/09: Postdoctoral Research Fellow, Institute of Earth Sciences, Academia Sinica
2020/08 – 2021/07: Substitute military serviceman, National Conscription Agency, Ministry of the Interior
2018/08 – 2019/06: Visiting student, Dept. Earth, Environmental and Planetary Sciences, Brown University (Ministry of Science and Technology Overseas Project for Post Graduate Research)
2015/09 – 2020/07: Ph.D., Dept. Geosciences, National Taiwan University
2013/09 – 2015/06: M.S., Dept. Geophysics, Nation Central University
2012/07 – 2012/08: Member of summer undergraduate research program, Inst. Earth Sciences, Academia Sinica
2009/09 – 2013/06: B.S., Dept. Earth Sciences, National Central University
PROGRAM LANGUAGES
Fortran, Matlab, Python, GMT, C shell, awk shell, SAC
RESEARCH INTERESTS
Seismic/Ocean waves:
short-to-long period surface waves; teleseismic scattered body waves; infragravity wave; T-wave
Seismic imaging techniques:
ambient noise tomography; two-plane wave tomography; receiver function
Seismic structure:
oceanic lithosphere-asthenosphere structure; subduction zone; volcanic structure; sediment structure
PUBLICATIONS
Chen, K.-X*., & Gung, Y. (2025). Linking ocean storms and Earth's hum excitation: Seasonal infragravity wave observations in the Pacific Ocean. Journal of Geophysical Research: Oceans, 130(8), e2025JC022342. (pdf)(sup.)
Chen, K.-X*., Kuo, B. Y., Lin, T. J., Lin, P. Y. P., Gung, Y., Tan, E., et al., (2024). Shear-dominant continental rifting in northern Ryukyu revealed by ambient noise tomography. Journal of Geophysical Research: Solid Earth, 129,e2024JB029448. (pdf)(sup.)
Chen, K.-X*., & Forsyth, D. W. (2024). On the origin of the Hawaiian Swell: Lithosphere and asthenosphere seismic structure from Rayleigh wave dispersion. Journal of Geophysical Research: Solid Earth, 129, e2024JB029407. (pdf)(sup.) (Download this model !)
Cheng, C. Y., Kuo-Chen, H., Brown, D., Yao, H., Chen, K. X., & Ma, K. F. (2024). High-resolution 3D ambient noise tomography around the Meishan-Chiayi active fault system of western Taiwan. Journal of Asian Earth Sciences: X, 100182. (pdf)
Chen, K. X*., Forsyth, D. W., & Fischer, K. M. (2024). A mid‐lithospheric discontinuity detected beneath 155 Ma western Pacific seafloor using Sp receiver functions. Geophysical Research Letters, 51(5), e2024GL108347. (pdf)(sup.)
Chen, K. X*., Fischer, K. M., Hua, J., & Gung, Y. (2020). Imaging crustal melt beneath northeast Japan with Ps receiver functions. Earth and Planetary Science Letters, 537, 116173. (pdf)(sup.)
Zellmer, G. F.*, Chen, K. X., Gung, Y., Kuo, B. Y., & Yoshida, T. (2019). Magma transfer processes in the NE Japan arc: insights from crustal ambient noise tomography combined with volcanic eruption records. Frontiers in Earth Science, 7, 40. (pdf) (sup.)
Chen, K. X*., Gung, Y., Kuo, B. Y., & Huang, T. Y. (2018). Crustal magmatism and deformation fabrics in northeast Japan revealed by ambient noise tomography. Journal of Geophysical Research: Solid Earth, 123(10), 8891-8906. (pdf) (sup.) (Download this model !)
Zhang, Y*., Yao, H., Yang, H. Y., Cai, H. T., Fang, H., Xu, J., ... & Chen, K. X. (2018). 3‐D crustal shear‐wave velocity structure of the Taiwan Strait and Fujian, SE China, revealed by ambient noise tomography. Journal of Geophysical Research: Solid Earth, 123(9), 8016-8031. (pdf) (sup.)
Kuo-Chen, H*., Chen, K. X., Sun, W. F., Ho, C. W., Lee, Y. H., Guan, Z. K., Kang, C. C., & Chang, W. Y. (2016). 3D Vs ambient noise tomography in the source region of 2016 Mw6.4 MeiNong earthquake. Terr. Atmos. Ocean. Sci., doi:10.3319/TAO.2016.12.28.01. (pdf)
Chen, K. X., Kuo‐Chen, H*., Brown, D., Li, Q., Ye, Z., Liang, W. T., ... & Yao, H. (2016). Three‐dimensional ambient noise tomography across the Taiwan Strait: The structure of a magma‐poor rifted margin. Tectonics, 35(8), 1782-1792. (pdf) (sup.)
Chen, K. X., Chen, P. F*., Chen, L. W., Yao, H., Fang, H., & Su, P. L. (2016). South Ilan Plain High-Resolution 3-D S-Wave Velocity from Ambient Noise Tomography. Terrestrial, Atmospheric & Oceanic Sciences, 27(3). (pdf)
Chen, P. F*., Chen, K. X., & Cheng, H. Y. (2015). Frequent excitations of T waves by earthquakes in the South Mariana Arc. Journal of Asian Earth Sciences, 98, 50-60. (pdf)
AWARDS/ HONORS
2025: Gordon Research Conference Carl Storm International Diversity Award
2020: 2018-2019 Top Downloaded Paper (Chen et al., 2018) in Journal of Geophysical Research: Solid Earth [Wiley]
2020: Selected Honorary Member of the Phi Tau Phi Scholastic Honor Society [National Taiwan University]
2020: Dean's Award of College of Science [National Taiwan University]
2020: The 40th Youth Forum: the Excellence Award [Department of Geology, National Taiwan University]
2019: Prof. Yi-Ben Tsai Graduate Student Scholarship [Chinese Taipei Geophysical Society]
2017: Outstanding Student Paper Award [Earth Science Research Promotion Center, Ministry of Science and Technology]
2016: Prof. Wei-zhou Ruan Memorial Scholarship [Department of Geology, National Taiwan University]
2014: Outstanding Student Poster Award [2014 Taiwan Geosciences Assembly]
2013: Undergraduate Student Earth Science Research Competition: the Second Place [Department of Earth Sciences, National Central University]
PROFESSIONAL SERVICES
Staff of IES Research Programs Open House: 2013, 2015, 2016, 2019
Judge of Outstanding Student Presentation Award (OSPA): American Geophysical Union Fall Meeting, Japan Geoscience Union Meeting, Taiwan Geosciences Assembly, AS-IES summer research program
Reviewer of manuscripts: Geophysical Research Letters; Journal of Geophysical Research: Solid Earth; Geochemistry, Geophysics, Geosystems; Bulletin of the Seismological Society of America; Geoscience Letters; Gondwana Research; Tectonophysics; etc.
INVITED TALKs
2025/09: Ocean-Bottom Seismometer Observations of Upper-Mantle Seismic Structure and Infragravity Waves @ Dept. of Earth Sciences, National Central University
2023/06: Imaging the upper mantle structure of the Pacific seafloor using surface wave and scattered body wave data: Case studies of the PLATE and PLUME OBS arrays @ Institute of Earth Sciences, Academia Sinica
2022/11: Imaging Oceanic Lithosphere-Asthenosphere System beneath 155 Ma Western Pacific using S-to-p Receiver Functions @ Dept. of Earth, Environmental and Planetary Sciences, Brown University
2018/10: Crustal magmatism and deformation fabrics in northeast Japan revealed by ambient noise tomography @ Department of Earth, Environmental and Planetary Sciences, Brown University
CONFERENCE PRESENTATIONS
2025 Gordon Research Conference on Interior of the Earth (poster), Imaging the Oceanic Mantle Structure Using Seismic Surface Waves Recorded by OBS Arrays: Case Studies from the PLUME and Oldest OBS arrays
2025 Taiwan Geosciences Assembly (oral), Linking Ocean Storms and Earth's Hum Excitation: Seasonal Infragravity Wave Observations in the Pacific Ocean
2025 Japan Geoscience Union Meeting (oral), Linking Ocean Storms and Earth's Hum Excitation: Seasonal Infragravity Wave Observations in the Pacific Ocean
2024 American Geophysical Union (AGU) fall meeting (poster), Infragravity Wave Observations in the Pacific Ocean Using Multiple Ocean-Bottom-Seismometer Arrays
2024 American Geophysical Union (AGU) fall meeting (eLightning), On the origin of the Hawaiian Swell: Lithosphere and asthenosphere seismic structure from Rayleigh wave dispersion
2024 The 8th TEC Annual Meeting (oral), Lithosphere and Asthenosphere of the Pacific Seafloor Imaged by Seismic Waves Recorded by OBS Arrays
2024 Symposium on "Exploring the Earth’s Interior From Geophysical, Geochemical and Geodynamical Perspectives" @IES, AS (oral), On the Origin of the Hawaiian Swell: Constraints from Lithosphere and Asthenosphere Seismic Structure
2024 Japan Geoscience Union Meeting (oral), Lithosphere and Asthenosphere Seismic Structure Beneath the Hawaiian Swell from Rayleigh Wave Dispersion
2024 Japan Geoscience Union Meeting (poster), Infragravity wave generation and propagation in the Pacific Ocean revealed by ambient noise correlation
2024 Annual Meeting of the Chinese Taipei Geophysical Society & Geological Society of Taiwan (oral), Lithosphere and Asthenosphere Seismic Structure Beneath the Hawaiian Swell from Rayleigh Wave Dispersion
2023 Symposium on the Dynamic Earth from Crust to Core-Mantle Boundary (Oral), Receiver function imaging of the lithosphere-asthenosphere system beneath a 155 Ma Pacific seafloor: Results from the PLATE array
2023 Gordon Research Conference on Interior of the Earth (poster), Imaging oceanic lithosphere-asthenosphere system beneath 155 Ma western Pacific using S-to-p receiver functions
2023 GAGE/SAGE Community Science Workshop (poster), Imaging oceanic lithosphere-asthenosphere system beneath 155 Ma western Pacific using S-to-p receiver functions.
2022 American Geophysical Union (AGU) fall meeting (poster), Imaging oceanic lithosphere-asthenosphere system beneath 155 Ma western Pacific using S-to-p receiver functions
2020 The 40th Youth Forum (oral), Image crustal melt beneath northeast Japan with ambient noise tomography and Ps receiver functions
2019 American Geophysical Union (AGU) fall meeting (poster), Imaging crustal melt beneath northeast Japan with Ps receiver functions
2019 Workshop on Frontiers in Seismic Interferometry (poster), Imaging crustal melt beneath northeast Japan with Ps receiver functions
2018 American Geophysical Union (AGU) fall meeting (poster), Crustal and upper mantle seismic structure in northeast Japan constrained by ambient noise tomography and Ps receiver functions
2018 Asia Oceania Geosciences Society 15th Annual Meeting (poster), Crustal seismic structure of SW Japan constrained by noise interferometry
2017 American Geophysical Union (AGU) fall meeting (poster), Crustal magmatism and deformation fabrics in northeast Japan revealed by ambient noise tomography
2017 2nd TEC Annual Meeting (oral), Crustal magmatism and deformation fabrics in northeast Japan revealed by ambient noise tomography
2017 JpGU-AGU Joint Meeting (poster), Crustal structure and deformation fabrics in the Tohoku region, Japan, revealed by ambient noise tomography
2017 Annual Meeting of the Chinese Taipei Geophysical Society & Geological Society of Taiwan (oral), Crustal structure and deformation fabrics in the Tohoku region, Japan, revealed by ambient noise tomography
2016 American Geophysical Union (AGU) fall meeting (poster), Crustal seismic structure of Tohoku region, Japan constrained by ambient noises
2016 The 1st TEC Annual Meeting (poster), Spatiotemporal Variation of Ambient Noise Levels and Cross-Correlations observed in Gujarat, India
2016 The 1st TEC Annual Meeting (poster), Crustal seismic structure of Tohoku region, Japan constrained by ambient noises
2016 BATS (Broadband Array in Taiwan for Seismology) open data services 20th anniversary conference (poster), 3D ambient noise tomography across the Taiwan Strait: the structure of a magma-poor rifted margin
2016 Taiwan Geosciences Assembly (oral), Crustal seismic structure of Japan island constrained by ambient noises
2016 Taiwan Geosciences Assembly (oral), 3D ambient noise tomography across the Taiwan Strait: the structure of a magma-poor rifted margin
2015 The 8th World Chinese Geosciences Conference (poster), 3-D Shear Wave Crust and Upper-mantle Structure in Taiwan Strait using Ambient Noise Tomography
2015 FACET (Feedbacks and coupling among climate, erosion and tectonics during mountain building) US-Taiwan Geoscience Workshop (poster), High-resolution 3-D Shear Wave Upper-crust Structures in Ilan Plain using Noise Tomography
2015 Annual Meeting of the Chinese Taipei Geophysical Society & Geological Society of Taiwan (oral), High-resolution 3-D Shear Wave Upper-crust Structures in Ilan Plain using Noise Tomography
2015 European Geosciences Union General Assembly (poster), High-resolution 3-D Shear Wave Upper-crust Structures in Ilan Plain using Ambient Noise Tomography
2014 Asia Oceania Geosciences Society 11th Annual Meeting (poster), High Resolution Rayleigh Wave Tomography from Improved Ambient Noise Correlation Functions in Ilan Plain
2014 Annual Meeting of the Chinese Taipei Geophysical Society & Geological Society of Taiwan (poster), High resolution Rayleigh wave tomography from improved Ambient Noise Correlation Functions in Yilan Plain
2013 Taiwan Geosciences Assembly (poster), Seismometer Time Shift Correction using Cross-correlation Technique: Example of 1998-1999 BATS Waveform Data
3-D demonstration of Vs model
Taiwan Strait Vs model (Chen et al., 2016)
NE Japan Vs and azimuthal anisotropy model (Chen et al., 2018)
You are the
visitor! No prize, but endless gratitude!