固体地球科学(S)
セッション小記号固体地球科学複合領域・一般(CG)
セッションIDS-CG48
タイトル和文Science of slow earthquakes: Toward unified understandings of whole earthquake process
英文Science of slow earthquakes: Toward unified understandings of whole earthquake process
タイトル短縮名和文Science of slow earthquakes: Toward unified understandings of whole earthquake process
英文Science of slow earthquakes
代表コンビーナ 氏名和文井出 哲
英文Satoshi Ide
所属和文東京大学大学院理学系研究科地球惑星科学専攻
英文Department of Earth an Planetary Science, University of Tokyo
共同コンビーナ 1氏名和文廣瀬 仁
英文Hitoshi Hirose
所属和文神戸大学都市安全研究センター
英文Research Center for Urban Safety and Security, Kobe University
共同コンビーナ 2氏名和文氏家 恒太郎
英文Kohtaro Ujiie
所属和文筑波大学生命環境系
英文Graduate School of Life and Environmental Sciences, University of Tsukuba
共同コンビーナ 3氏名和文波多野 恭弘
英文Takahiro Hatano
所属和文東京大学地震研究所
英文Earthquake Research Institute, University of Tokyo
発表言語E
スコープ和文Accumulating observational studies on various types of slow deformation events, such as tectonic tremors, very low frequency events, and slow slip events, portrays some universal characteristics in generally complex behavior, including interaction among events and influence by various outer loadings. Some of these phenomena seem to have causal relation with the occurrence of very large earthquakes. A unified understanding of these slow and fast earthquake processes requires an approach integrating geophysics, seismology, geodesy, geology, and non-equilibrium statistical physics. We welcome presentations based on, but not limited to, geophysical observation, data analysis, analytical theory, numerical simulation, field study, and laboratory experiments.
英文Accumulating observational studies on various types of slow deformation events, such as tectonic tremors, very low frequency events, and slow slip events, portrays some universal characteristics in generally complex behavior, including interaction among events and influence by various outer loadings. Some of these phenomena seem to have causal relation with the occurrence of very large earthquakes. A unified understanding of these slow and fast earthquake processes requires an approach integrating geophysics, seismology, geodesy, geology, and non-equilibrium statistical physics. We welcome presentations based on, but not limited to, geophysical observation, data analysis, analytical theory, numerical simulation, field study, and laboratory experiments.
発表方法口頭および(または)ポスターセッション
ジョイントセッションAGU,EGU,AOGS
招待講演Bertrand Rouet-Leduc (Los Alamos National Laboratory)
Alexandre Schubnel (CNRS)
Paul A Selvadurai (ETH Zurich)
Emily Warren-Smith (GNS Science)
福田 淳一 (東京大学地震研究所)
時間講演番号タイトル発表者予稿原稿
口頭発表 5月29日 AM1
09:00 - 09:30SCG48-01Variability of the space-time evolution of slow slip events off the Boso Peninsula, central Japan, from 1996 to 2018福田 淳一予稿
09:30 - 09:45SCG48-02Cumulative slip distribution of short-term slow slip events in the western Shikoku area, southwest Japan based on tilt change measurements廣瀬 仁予稿
09:45 - 10:00SCG48-03Shallow undersea SSEs off the western Japan monitored by the GNSS-A横田 裕輔予稿
10:00 - 10:15SCG48-04Co- and Post-seismic deformation due to the 2016 moderate earthquake sequence at the Chaman fault松本 史子予稿
10:15 - 10:30SCG48-05GNSSと重力データを用いたスロースリップ中における流体移動の定量化の試み 第一報梅宮 悠輔予稿
口頭発表 5月29日 PM1
13:45 - 14:00SCG48-06Interplay between long-term SSE and ETS facilitated by different underground environment小原 一成予稿
14:00 - 14:15SCG48-07Determination of sVLFE epicenters around the subducted Kyushu-Palau Ridge from coda interferometry利根川 貴志予稿
14:15 - 14:30SCG48-08Detection of slow earthquakes in the microseism frequency band (0.05–1.0 Hz) by large-scale waveform stacking増田 滉己予稿
14:30 - 14:45SCG48-09Source characteristics of low-frequency earthquakes in Nankai subduction zone inferred from analysis of large event datasetNatalia Poiata予稿
14:45 - 15:00SCG48-10High-frequency radiation prior to semi-volcanic low-frequency earthquake in Eastern Shimane, SW Japan, illuminated by “0.1 manten” Hyper Dense Seismic Observation加藤 愛太郎予稿
15:00 - 15:15SCG48-11Variation of Focal Mechanisms of Low Frequency Earthquakes in Parkfield麻生 未季予稿
口頭発表 5月29日 PM2
15:30 - 16:00SCG48-12Mapping seismic data to slow slip using machine learningBertrand Rouet-Leduc予稿
16:00 - 16:15SCG48-13Revealing the slow earthquake activity in the Japan Trench and its relation to the 2011 Tohoku-Oki earthquake西川 友章予稿
16:15 - 16:30SCG48-14Tremor and slow slip associated with afterslip of the 2011 Tohoku earthquake太田 和晃予稿
16:30 - 16:45SCG48-15High definition imaging of the Japan Trench by OBS Array of Arrays: Does shallow tectonic tremor occur in the plate interface?Shukei Ohyanagi予稿
16:45 - 17:00SCG48-16東北地方太平洋沖地震後の繰り返し地震活動:海陸地震観測網による検討内田 直希予稿
口頭発表 5月30日 AM1
09:00 - 09:15SCG48-17Three-dimensional seismic structure of the shallow plate boundary in the northern Hikurangi margin from NZ3D OBS data新井 隆太予稿
09:15 - 09:45SCG48-18Using earthquake focal mechanisms to investigate slow slip driving forces in the northern HikurangiEmily Warren-Smith予稿
09:45 - 10:00SCG48-19広帯域レシーバ関数が示す南海トラフ沈み込み帯スロー地震発生域の地震学的構造変化佐脇 泰典予稿
10:00 - 10:15SCG48-20Slip tendency maps for compressional and extensional stress states on a shallow decollement in Nankai Trough橋本 善孝予稿
10:15 - 10:30SCG48-21Permeability and its anisotropy on creeping Chihshang Fault, TaiwanTyas Dwi Aprilniadi予稿
口頭発表 5月30日 AM2
10:45 - 11:00SCG48-22Short fluid infiltration events in the low permeable metamorphic rocks triggered by crustal fracturing at amphibolite–granulite facies conditionsDiana Mindaleva予稿
11:00 - 11:15SCG48-23Generation of high fluid pressure at the base of the shallow mantle wedge—evidence from serpentinite of the Sanbagawa belt, SW Japanウォリス サイモン予稿
11:15 - 11:30SCG48-24Overpressured subduction plate boundary caused by infiltration of mantle-derived fluids: Evidence from helium isotope analysis on veins in subduction mélange西山 直毅予稿
11:30 - 11:45SCG48-25Geological and rheological conditions of subduction plate boundary between the seismogenic zone and the ETS zone in warm-slab environments氏家 恒太郎予稿
11:45 - 12:00SCG48-26Temperature variation in tectonic mélanges of the Shimanto Belt, SW JapanTsai-Wei Chen予稿
12:00 - 12:15SCG48-27Frictional properties of opal gouge at low-temperature hydrothermal conditions and their implications for seismogenic faulting along subduction-zone megathrusts金川 久一予稿
口頭発表 5月30日 PM1
13:45 - 14:00SCG48-28Rate and State Dependent Friction Law and Static Friction Force松川 宏予稿
14:00 - 14:30SCG48-29Stable sliding, slow and silent slip events and laboratory earthquakes across the brittle ductile transitionAlexandre Schubnel予稿
14:30 - 14:45SCG48-30Dramatic velocity weakening of dry quartz friction at relatively slow slip velocities堤 昭人予稿
14:45 - 15:00SCG48-31ゲルの摩擦実験における微動とゆっくりすべりを伴う破壊核形成過程山口 哲生予稿
15:00 - 15:15SCG48-32多孔質媒質中の乱流におけるk-εモデルの解軌道鈴木 岳人予稿
口頭発表 5月30日 PM2
15:30 - 16:00SCG48-33Modelling precursory seismicity in the laboratory using a roughness derived rate and state friction modelPaul A Selvadurai予稿
16:00 - 16:15SCG48-34Exponential dependence on perturbation stress of earthquake nucleation齋藤 拓也予稿
16:15 - 16:30SCG48-35Stochastic modeling of slow earthquakes comparable to observations麻生 尚文予稿
16:30 - 16:45SCG48-36Migration of aqueous fluid near the subducting plate interface森重 学予稿
16:45 - 17:00SCG48-37EnKF estimation of frictional properties and slip evolution on a LSSE fault and the changing slip deficit rate on a megathrust fault平原 和朗予稿
講演番号タイトル発表者予稿原稿
ポスター発表 5月29日 AM2
SCG48-P012004年海底地震観測から明らかになった紀伊半島南東沖の浅部低周波微動活動溜渕 功史予稿
SCG48-P02The development of pressure vessel on gouges for rock deformation at seismic rates under water-saturated conditionsWei-Ting Lin予稿
SCG48-P03室戸岬沖から紀伊半島南東沖にかけての領域の浅部超低周波地震活動の空間変化武村 俊介予稿
SCG48-P04Evaluation of Magnitude and Characteristics of Seismicity of Low Frequency Earthquakes in Parkfield麻生 未季予稿
SCG48-P05Tectonic tremor catalog in the Tohoku-Hokkaido-Oki region using S-net井出 哲予稿
SCG48-P06Spontaneous Slow Slip and Runaway Slip in Laboratory高橋 美紀予稿
SCG48-P07高速断層すべり過程における石英質岩の水和化、非晶質化 : 人工水晶を用いた摩擦実験による検討尾上 裕子予稿
SCG48-P08Constraining S Wave Velocity of the Source Region of Shallow Very Low-Frequency Earthquakes悪原 岳予稿
SCG48-P09Quantitative relationship between aseismic slip propagation speed and frictional properties有吉 慶介予稿
SCG48-P10Comprehensive detection of very low frequency earthquakes off the Pacific coasts of Hokkaido and Tohoku, northeastern Japan馬場 慧予稿
SCG48-P11GNSSデータを用いた1997-2017年東海地方スロースリップイベントの推定坂上 啓予稿
SCG48-P12Broadband excitation of acoustic emission in granular stick-slip : experiments and spectral analyses福水 秀和予稿
SCG48-P13Episodic tremor and slip silently invades strongly locked megathrust in the Nankai Trough加納 将行予稿
SCG48-P14Spatial distribution of the electrical resistivity beneath western part of Shikoku Island where long-term SSE events have repeatedly occurred上嶋 誠予稿
SCG48-P15Variations of scaling relationships for shallow tremor observed along the Nankai trough中野 優予稿
SCG48-P16Low-frequency earthquakes triggered by teleseismic surface waves by Ryukyu subduction zone.中村 衛予稿
SCG48-P17四国地方における深部低周波微動に同期する地表変位の検出岡田 悠太郎予稿
SCG48-P18Long-term temporal change in crustal resistivity beneath western Shikoku山下 太予稿
SCG48-P19Slow decay of postseismic deformation compared with aftershocks following the 2011 Tohoku-oki Earthquake三井 雄太予稿
SCG48-P20スロー地震発生深度で形成された沈み込み剪断帯における蛇紋岩の脱水森 康予稿
SCG48-P21中部琉球海溝における超低周波地震群発地震活動に続いて起こる群発地震活動中村 衛予稿
SCG48-P22Seismic imaging in the central Nankai trough, off Shionomisaki to Kii channel中村 恭之予稿
SCG48-P23Attempt to Detect Intra-plate SSEs Based on F3 Solution of GEONET田中 優作予稿
SCG48-P24A new hydrothermal, low to high speed rotary-shearing apparatus: Reproduction of slow/megathrust earthquakes in laboratory廣瀬 丈洋予稿
SCG48-P25Very low-frequency earthquakes in western Shikoku remotely triggered by the 2016 Mw5.9 off-Kii Peninsula earthquake宮澤 理稔予稿
SCG48-P26Underground structure around source region of slow earthquakes in western Shikoku obtained by receiver function analysis小原 一成予稿
SCG48-P27地震計アレイデータの逆投影による紀伊半島下の深部低周波微動の震源決定寒河江 皓大予稿
SCG48-P28Triggered tremors and stress perturbations due to surface waves池田 亮平予稿
SCG48-P29Numerical modeling of long- and shallow slow slip events including shallow region in Hyuganada and western Nankai, Japan松澤 孝紀予稿
SCG48-P30南海トラフ東部の浅部VLFE震源分布が示唆する、沈み込む海嶺が及ぼす空間的ひずみ蓄積解放様式への影響藤 亜希子予稿
SCG48-P31Evidence for semi-brittle flow in mantle-wedge serpentinites under high pore fluid pressure and their implications for deep low frequency earthquakes平内 健一予稿
SCG48-P32疎性モデリングで得られた房総半島沖スロースリップイベントのすべり分布中田 令子予稿
SCG48-P33Marine electromagnetic observations around a slow earthquake region in the western Nankai trough市原 寛予稿
SCG48-P34構造媒質中で凝集が生じる系で見られる注入先端のダイナミクス住野 豊予稿
SCG48-P35Permeability changes of simulated low permeable fault rocks induced by intermediate velocity friction test谷川 亘予稿
SCG48-P36Modified relation between the coupling and tremor rates around the Shikoku region落 唯史予稿
SCG48-P37Spatiotemporal distribution of regular and very low-frequency earthquakes in the northern part of the Ryukyu subduction zone浅野 陽一予稿
SCG48-P38Possible tectonic tremor activities near the VLFE epicenters in the Sanriku-Oki region in 2011高橋 秀暢予稿
SCG48-P39Heterogeneous structure around a region of slow earthquake activity off Ibaraki prefecture along the Japan Trench望月 公廣予稿
SCG48-P40Shallow low-frequency tremor triggered by nearby moderate earthquakes off Sanriku田中 佐千子予稿
SCG48-P41GNSSデータに基づく15年間の豊後水道スロースリップの推定(1996-2011年)宮崎 真一予稿
SCG48-P42加速度計記録を用いたS-netのセンサー姿勢・方位推定と地殻変動検出可能性の検討高木 涼太予稿
SCG48-P43Spatiotemporal variation of released seismic energy from shallow low-frequency tremor in Hyuga-nada, revealed by ocean bottom seismological observation山下 裕亮予稿
SCG48-P44Unified description of fast and slow earthquakes using velocity strengthening patches小澤 創予稿
SCG48-P45The b-value of the earthquake swarm activities accompanied by the Boso slow slip events野田 雄貴予稿
SCG48-P46琉球海溝周辺におけるフィリピン海プレートの沈み込みに伴う3次元熱対流数値シミュレーション末永 伸明予稿