Kohtaro Ujiie

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Speaker, Author, Co-Author

Fri. May 27, 2022 1:45 PM - 3:15 PM 103 (International Conference Hall, Makuhari Messe)

[E] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG44] Science of slow-to-fast earthquakes

2:00 PM - 2:15 PM

[SCG44-25] Timescales of silica precipitation compared to the earthquake recurrences around seismogenic zones SW Japan

*Hanae Saishu¹, Makoto Otsubo¹, Atsushi Okamoto², Kohtaro Ujiie³ (1.AIST, 2.Tohoku Univ., 3.Univ. Tsukuba)

2:30 PM - 2:45 PM

[SCG44-27] Deformation mechanisms in a tectonic mélange of Amami-Oshima Island: Implications of seamount subduction at slow earthquake source depth

*Madison Frank¹, Kohtaro Ujiie², Ginta Motohashi¹ (1.Graduate School of Life and Environmental Sciences, University of Tsukuba, 2.Faculty of Life and Environmental Sciences, University of Tsukuba)

Fri. Jun 3, 2022 11:00 AM - 1:00 PM Online Poster Zoom Room (23) (Ch.23)

[E] Poster
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG44] Science of slow-to-fast earthquakes

11:00 AM - 1:00 PM

[SCG44-P03] Field observations, microstructures, and frictional properties of the Red Island/Karamea shear zone, New Zealand

*Madison Frank¹, Carolyn Boulton³, André R Niemeijer⁴, Kohtaro Ujiie² (1.Graduate School of Life and Environmental Sciences, University of Tsukuba, 2.Faculty of Life and Environmental Sciences, University of Tsukuba, 3.School of Geography, Environment and Earth Sciences, Victoria University of Wellington, 4.Department of Earth Sciences, Utrecht University)

11:00 AM - 1:00 PM

[SCG44-P08] Change in slip mode along subduction megathrust controlled by metasomatic reactions near mantle wedge corner

*Naoki Nishiyama¹, Kohtaro Ujiie¹, Kazuya Noro¹, Yasushi Mori², Haruna MASUYAMA¹ (1.University of Tsukuba, 2.Kitakyushu Museum of Natural History and Human History)

11:00 AM - 1:00 PM

[SCG44-P10] Deformation temperature and strain rate estimations for Mie mélange of Nagasaki Metamorphic Rocks

*Seiya Maehara¹, Ryosuke Ando¹, Takayoshi Nagaya¹, Kohtaro Ujiie², Simon Richard Wallis¹, Koyama Yukinojo¹ (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 2.Faculty of Life and Environmental Sciences, University of Tsukuba)

11:00 AM - 1:00 PM

[SCG44-P29] Depth-dependence of shallow and deep slow earthquakes: ductility comes from friction or plasticity?

*Ryosuke Ando¹, Kohtaro Ujiie², Yasushi Mori³, Naoki Nishiyama² (1.Graduate School of Science, University of Tokyo, 2.Graduate School of Life and Environmental Sciences, University of Tsukuba, 3.Kitakyushu Museum of Natural History and Human History)

Thu. May 26, 2022 9:00 AM - 10:30 AM 304 (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG49] Rheology, fracture and friction in Earth and planetary sciences

10:15 AM - 10:30 AM

[SCG49-12] Origin of overpressured fluids in subduction plate boundary near the downdip limit of the seismogenic zone

★Invited Papers

*Naoki Nishiyama¹, Hirochika Sumino², Kohtaro Ujiie¹ (1.University of Tsukuba, 2.The University of Tokyo)