[E] ポスター発表

セッション記号 S (固体地球科学) » S-CG 固体地球科学複合領域・一般

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

2022年6月3日(金) 11:00 〜 13:00 オンラインポスターZoom会場 (23) (Ch.23)

コンビーナ:加藤愛太郎(東京大学地震研究所)、コンビーナ:田中愛幸(東京大学理学系研究科)、山口飛鳥(東京大学大気海洋研究所)、コンビーナ:波多野恭弘(大阪大学理学研究科)、座長:永冶方敬(東京大学大学院理学系研究科)、Anca Opris(Research and Development Center for Earthquake and Tsunami Forecasting)

A growing evidence of geophysical observations has demonstrated that earthquake faults host a broad spectrum of slip modes from slow to unstable fast slip, which may lead to complexity in the nucleation process, rupture behavior, and slip & energy distribution. This discovery has boosted up vigorous discussions about the connection between slow and fast earthquakes including large earthquakes. How and when does a slow earthquake become a fast earthquake? To answer this fundamental question, it is particularly important to proceed further interdisciplinary research through the integration of geophysics, seismology, geodesy, geology, and physics. Developments of measurement technology, application of information science and statistical methods to seismic big-data and utilization of high-performance computing are required as key ingredients in accelerating the integration. This session encourages presentations shedding light on geophysical observations, data analysis, field studies, laboratory experiments, numerical modeling, and theoretical studies. We also welcome contributions from cutting-edge science and technology fields that explore development of novel measurements, data-driven analysis, and large-scale computation etc., those are relevant to slow and fast earthquakes.

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11:00 〜 13:00

[SCG44-P01] Experimental investigation of strength recovery under fluid flow

*濱田洋平¹、廣瀬丈洋¹ (1.国立研究開発法人海洋研究開発機構　超先鋭研究開発部門)

11:00 〜 13:00

[SCG44-P02] 異なる粒状物質が挟在する二面剪断変形試験による摩擦の多様性

*谷川亘¹、廣瀬丈洋¹、濱田洋平¹、岡崎啓史¹、多田井修²、鈴木孝弘² (1.国立研究開発法人海洋研究開発機構高知コア研究所、2.マリン・ワーク・ジャパン)

11:00 〜 13:00

[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 〜 13:00

[SCG44-P04] Effects of topographic and frictional heterogeneity of the incoming plate on deformation processes of an accretionary wedge: Insights from sandbox experiments and image analysis

*大熊祐一^1,2,3、野田篤³、山田泰広⁴、高下裕章³、山口飛鳥²、芦寿一郎^1,2 (1.東京大学大学院新領域創成科学研究科自然環境学専攻、2.東京大学大気海洋研究所、3.国立研究開発法人産業技術総合研究所、4.九州大学工学研究院地球資源システム工学部門)

11:00 〜 13:00

[SCG44-P05] 砂層の強度構造が付加体ウェッジの構造に与える影響

*橘隆海¹、藤内智士¹、山田泰広² (1.高知大学、2.九州大学)

11:00 〜 13:00

[SCG44-P06] 南海トラフ沈み込みプレート境界のラフネス解析

*福別府渉¹ (1.高知大学)

11:00 〜 13:00

[SCG44-P07] Antigorite grain boundary sliding accommodated by micro-cracking and dissolution-precipitation creep in subduction zone

*永冶方敬¹、ウォリスサイモン¹ (1.東京大学大学院理学系研究科)

11:00 〜 13:00

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

*西山直毅¹、氏家恒太郎¹、野呂和也¹、森康²、増山春菜¹ (1.筑波大学　生命環境系、2.北九州市立自然史・歴史博物館)

11:00 〜 13:00

[SCG44-P09] 深部スロー地震発生帯の地質学的特徴と応力推定に向けて: 三波川沈み込み型変成帯の例

*小山雪乃丞¹、ウォリスサイモン¹、永冶方敬¹ (1.東京大学大学院理学系研究科地球惑星科学専攻)

11:00 〜 13:00

[SCG44-P10] 長崎変成岩三重メランジュにおける変形温度及び歪み速度の推定

*前原誠也¹、安藤亮輔¹、永冶方敬¹、氏家恒太郎²、ウォリスサイモン¹、小山雪乃丞¹ (1.東京大学大学院理学系研究科地球惑星科学専攻、2.筑波大学生命環境系)

11:00 〜 13:00

[SCG44-P11] Possible low-velocity zone in the overriding plate at the updip limit of the megathrust earthquake rupture zone in the central-western Nankai Trough

*中村恭之¹、藤江剛¹、白石和也¹、小平秀一¹、木村学¹ (1.国立研究開発法人海洋研究開発機構)

11:00 〜 13:00

[SCG44-P12] Upper plate heterogeneities in the Hyuga-nada region inferred from new and legacy OBS refraction data

*新井隆太¹、三浦誠一¹、中村恭之¹、白石和也¹、藤江剛¹、小平秀一¹、高橋努¹、仲西理子¹、海宝由佳¹、濱田洋平¹、Ma Yanxue²、望月公廣²、仲田理映²、木下正高²、橋本善孝³ (1.国立研究開発法人海洋研究開発機構、2.東京大学地震研究所、3.高知大学)

11:00 〜 13:00

[SCG44-P13] Correlations between geological structures and distribution of tectonic tremors in Hyuga-nada, Nankai Trough

*Ma Yanxue¹、Nakata Rie¹、望月公廣¹、橋本善孝²、濱田洋平³、新井隆太³、三浦誠一³、中村恭之³、藤江剛³、海宝由佳³、小平秀一³ (1.東京大学地震研究所、2.高知大学、3.海洋研究開発機構)

11:00 〜 13:00

[SCG44-P14] A preliminary report on slow-to-fast / fast-to-slow inflation preceding recent volcanic eruptions in Japan

*前田裕太¹ (1.名古屋大学)

11:00 〜 13:00

[SCG44-P15] Gravity observations in long-term slow slip areas in Japan

*田中愛幸¹、坂上啓¹、平松祐一¹ (1.東京大学理学系研究科)

11:00 〜 13:00

[SCG44-P16] Preliminary analysis of continuous gravity measurement data obtained at a long-term slow slip area in the Ryukyu Trench

*平松祐一¹、田中愛幸¹、小林昭夫² (1.東京大学理学系研究科、2.気象庁気象研究所)

11:00 〜 13:00

[SCG44-P17] Characteristics of shallow very low frequency swarms along the Nankai Trough

*武村俊介¹、馬場慧¹、矢部優²、江本賢太郎³、汐見勝彦⁴、松澤孝紀⁴ (1.東京大学地震研究所、2.産業総合技術研究所、3.東北大学大学院理学研究科、4.防災科学技術研究所)

11:00 〜 13:00

[SCG44-P18] Investigating clustering and migration patterns of deep LFE activity in Nankai subduction zone using deep-learning and recurrent neural-networks.

*Anca Opris¹、Keisuke Ariyoshi¹、Takahiro Hatano²、Takane Hori³、Yojiro Yamamoto¹ (1.Japan Agency for Marine-Earth Science and Technology、2.Department of Earth and Space Science, Osaka University、3.R&D Center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology)

11:00 〜 13:00

[SCG44-P19] 紀伊半島下の微動マイグレーションに関する3つの異なるスケーリング則

*寒河江皓大¹、中原恒¹、西村太志¹、今西和俊² (1.東北大学大学院理学研究科地球物理学専攻固体地球物理学講座、2.産業技術総合研究所)

11:00 〜 13:00

[SCG44-P20] Toward a comprehensive catalogue of tremors in shallow subduction zones that enable to identify tremor missing regions

*藤亜希子¹、井出哲¹ (1.東京大学)

11:00 〜 13:00

[SCG44-P21] Comparison of spatiotemporal distributions of offshore tremor activities in the northern part of the Hikurangi subduction margin, New Zealand

*青山都和子¹、望月公廣¹、山下裕亮²、山田知朗¹ (1.東京大学地震研究所、2.京都大学防災研究所)

11:00 〜 13:00

[SCG44-P22] テクトニック微動の放射エネルギーを使用した地殻変動量の推定

*山本史¹、平松良浩² (1.金沢大学大学院自然科学研究科、2.金沢大学理工研究域地球社会基盤学系)

11:00 〜 13:00

[SCG44-P23] 高サンプリングGPSを用いたCascadiaスロースリップの時空間発展の推定

*伊東優治¹、青木陽介¹、福田淳一¹ (1.東京大学地震研究所)

11:00 〜 13:00

[SCG44-P24] Stress changes caused by Boso slow slip events inferred from seismicity data

卯川知希¹、*廣瀬仁^2,1 (1.神戸大学大学院理学研究科惑星学専攻、2.神戸大学都市安全研究センター)

11:00 〜 13:00

[SCG44-P25] Changes in long-term activity patterns of interplate slip from short-term slow slip events in the northern Kii Peninsula, Japan

中條尚哉¹、*廣瀬仁^2,1,3、木村武志³ (1.神戸大学大学院理学研究科惑星学専攻、2.神戸大学都市安全研究センター、3. 国立研究開発法人防災科学技術研究所)

11:00 〜 13:00

[SCG44-P26] Temporal and spatial variations in seismicity characteristics after the 2011 Tohoku-Oki earthquake estimated from HIST-ETAS model

*上田拓¹、加藤愛太郎¹ (1.東京大学地震研究所)

11:00 〜 13:00

[SCG44-P27] NccPy: an open-source earthquake relocation package for higher resolution hypocenter and centroid locations with cross correlation approaches

*張大維¹、井出哲¹ (1.東京大学)

11:00 〜 13:00

[SCG44-P28] Why do Gutenberg-Richter b-values decrease with time prior to large earthquakes? Insights from rate-and-state earthquake cycle simulations with frictional heterogeneities

*伊東良¹、金子善宏¹ (1.京都大学)

11:00 〜 13:00

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

*安藤亮輔¹、氏家恒太郎²、森康³、西山直毅² (1.東京大学大学院理学系研究科、2.筑波大学生命環境系、3.北九州市立自然史・歴史博物館)

11:00 〜 13:00

[SCG44-P30] Extension of aseismic slip propagation theory to slow earthquake migration

*有吉慶介¹ (1.国立研究開発法人海洋研究開発機構)

11:00 〜 13:00

[SCG44-P31] A friction law both for regular and slow earthquakes

*堀高峰¹、青地秀雄² (1.国立研究開発法人海洋研究開発機構、2.フランス地質調査所)

11:00 〜 13:00

[SCG44-P32] Preliminary forecasting model for tectonic tremor activity using a renewal process

*井出哲¹、野村俊一² (1.東京大学大学院理学系研究科地球惑星科学専攻、2.早稲田大学商学学術院会計研究科)

セッション情報

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

[SCG44-P01] Experimental investigation of strength recovery under fluid flow

[SCG44-P02] 異なる粒状物質が挟在する二面剪断変形試験による摩擦の多様性

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

[SCG44-P04] Effects of topographic and frictional heterogeneity of the incoming plate on deformation processes of an accretionary wedge: Insights from sandbox experiments and image analysis

[SCG44-P05] 砂層の強度構造が付加体ウェッジの構造に与える影響

[SCG44-P06] 南海トラフ沈み込みプレート境界のラフネス解析

[SCG44-P07] Antigorite grain boundary sliding accommodated by micro-cracking and dissolution-precipitation creep in subduction zone

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

[SCG44-P09] 深部スロー地震発生帯の地質学的特徴と応力推定に向けて: 三波川沈み込み型変成帯の例

[SCG44-P10] 長崎変成岩三重メランジュにおける変形温度及び歪み速度の推定

[SCG44-P11] Possible low-velocity zone in the overriding plate at the updip limit of the megathrust earthquake rupture zone in the central-western Nankai Trough

[SCG44-P12] Upper plate heterogeneities in the Hyuga-nada region inferred from new and legacy OBS refraction data

[SCG44-P13] Correlations between geological structures and distribution of tectonic tremors in Hyuga-nada, Nankai Trough

[SCG44-P14] A preliminary report on slow-to-fast / fast-to-slow inflation preceding recent volcanic eruptions in Japan

[SCG44-P15] Gravity observations in long-term slow slip areas in Japan

[SCG44-P16] Preliminary analysis of continuous gravity measurement data obtained at a long-term slow slip area in the Ryukyu Trench

[SCG44-P17] Characteristics of shallow very low frequency swarms along the Nankai Trough

[SCG44-P18] Investigating clustering and migration patterns of deep LFE activity in Nankai subduction zone using deep-learning and recurrent neural-networks.

[SCG44-P19] 紀伊半島下の微動マイグレーションに関する3つの異なるスケーリング則

[SCG44-P20] Toward a comprehensive catalogue of tremors in shallow subduction zones that enable to identify tremor missing regions

[SCG44-P21] Comparison of spatiotemporal distributions of offshore tremor activities in the northern part of the Hikurangi subduction margin, New Zealand

[SCG44-P22] テクトニック微動の放射エネルギーを使用した地殻変動量の推定

[SCG44-P23] 高サンプリングGPSを用いたCascadiaスロースリップの時空間発展の推定

[SCG44-P24] Stress changes caused by Boso slow slip events inferred from seismicity data

[SCG44-P25] Changes in long-term activity patterns of interplate slip from short-term slow slip events in the northern Kii Peninsula, Japan

[SCG44-P26] Temporal and spatial variations in seismicity characteristics after the 2011 Tohoku-Oki earthquake estimated from HIST-ETAS model

[SCG44-P27] NccPy: an open-source earthquake relocation package for higher resolution hypocenter and centroid locations with cross correlation approaches

[SCG44-P28] Why do Gutenberg-Richter b-values decrease with time prior to large earthquakes? Insights from rate-and-state earthquake cycle simulations with frictional heterogeneities

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

[SCG44-P30] Extension of aseismic slip propagation theory to slow earthquake migration

[SCG44-P31] A friction law both for regular and slow earthquakes

[SCG44-P32] Preliminary forecasting model for tectonic tremor activity using a renewal process

認証