固体地球科学(S)
セッション小記号 地震学(SS)
セッションID S-SS03
タイトル 和文 Seismological advances in the ocean
英文 Seismological advances in the ocean
タイトル短縮名 和文 Seismological advances in the ocean
英文 Seismological advances in the ocean
代表コンビーナ 氏名 和文 山谷 里奈
英文 Lina Yamaya
所属 和文 防災科学技術研究所
英文 National Research Institute for Earth Science and Disaster Resilience
共同コンビーナ 1 氏名 和文 利根川 貴志
英文 Takashi Tonegawa
所属 和文 海洋研究開発機構 地震津波海域観測研究開発センター
英文 Research and Development center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology
共同コンビーナ 2 氏名 和文 久保田 達矢
英文 Tatsuya Kubota
所属 和文 国立研究開発法人防災科学技術研究所
英文 National Research Institute for Earth Science and Disaster Resilience
発表言語 E
スコープ 和文
Advances in ocean-bottom seismic observations with seismometers, hydrophones, and pressure gauges have provided us with the opportunity to study seismicity, subsurface structures, earthquake and tsunami generation, and wave phenomena in offshore areas. Permanent (cabled) observatories enable long-term monitoring for these targets, and deployments of dense temporary arrays or fiber optic technologies produce higher-resolution researches. Also, such developments in ocean seismology have invoked the community to create data processing and analyzing techniques. The purpose of this session is to share recent advances in the ocean seismology, such as seismicity, seismic velocity structure conducted from active and passive approaches, progresses in the development of seafloor instrumentation, processing and analyzing techniques for offshore seismic datasets, findings of submarine earthquakes and tsunamis, observation of the seafloor strong motion, characterization of ambient noise and interpretation of its sources, propagation processes of various waves in the atmosphere, ocean, and solid Earth recorded by ocean instruments, and all relevant topics. This session welcomes observation or analysis of enigmatic phenomena such as the 2023 Torishima earthquake. We recommend presentations by early-career researchers and students who would like to try the presentation in an international session.
英文
Advances in ocean-bottom seismic observations with seismometers, hydrophones, and pressure gauges have provided us with the opportunity to study seismicity, subsurface structures, earthquake and tsunami generation, and wave phenomena in offshore areas. Permanent (cabled) observatories enable long-term monitoring for these targets, and deployments of dense temporary arrays or fiber optic technologies produce higher-resolution researches. Also, such developments in ocean seismology have invoked the community to create data processing and analyzing techniques. The purpose of this session is to share recent advances in the ocean seismology, such as seismicity, seismic velocity structure conducted from active and passive approaches, progresses in the development of seafloor instrumentation, processing and analyzing techniques for offshore seismic datasets, findings of submarine earthquakes and tsunamis, observation of the seafloor strong motion, characterization of ambient noise and interpretation of its sources, propagation processes of various waves in the atmosphere, ocean, and solid Earth recorded by ocean instruments, and all relevant topics. This session welcomes observation or analysis of enigmatic phenomena such as the 2023 Torishima earthquake. We recommend presentations by early-career researchers and students who would like to try the presentation in an international session.
発表方法 口頭および(または)ポスターセッション
招待講演 Ana Ferreira (University College London)
松本 圭晶 (東北大学理学研究科地震・噴火予知研究観測センター)
Dan Bassett (GNS Science)
大柳 修慧 (京都大学大学院理学研究科)
時間 講演番号 タイトル 発表者
口頭発表 5月27日 PM1
13:45 - 14:00 SSS03-01 Hypocenter determination using S-net data of shallow earthquakes off Fukushima and Ibaraki prefectures, Japan 松本 圭晶
14:00 - 14:15 SSS03-02 Shallow tectonic tremor activity in Off Sanriku, near the Japan Trench: does tremor occur in the tsunami earthquake source regions? 大柳 修慧
14:15 - 14:30 SSS03-03 2006年10月の月曜海山近傍の地震活動:詳細な震央分布推定による火山活動の示唆 青山 哲也
14:30 - 14:45 SSS03-04 High-resolution CMT inversion for shallow offshore earthquake utilizing ocean-influenced Rayleigh wave thanks to thick seawater layer 山谷 里奈
14:45 - 15:00 SSS03-05 Spectral characteristics, time variations and estimation of source directions of marine microseisms recorded in Cuba Viana Poveda Brossard
口頭発表 5月27日 PM2
15:30 - 15:45 SSS03-06 Evidence of a shear zone inside the Philippine Sea plate slab in Suruga Bay, provided by long term OBS observations. Yannis Panayotopoulos
15:45 - 16:00 SSS03-07 Crustal scale controls on megathrust slip behaviour - Insights from margin-wide high-resolution tomography of Nankai Trough and the Hikurangi subduction zone Dan Bassett
16:00 - 16:15 SSS03-08 Lithosphere and Asthenosphere Seismic Structure Beneath the Hawaiian Swell from Rayleigh Wave Dispersion Kai Xun Chen
16:15 - 16:30 SSS03-09 Low-Velocity Anomalies beneath the Outer-Rise Regions: A New Type of Abnormal Oceanic Mantle 竹内 希
16:30 - 16:45 SSS03-10 The UPFLOW experiment: Peeking from the sea floor to the deep mantle with an ∼1,500 km aperture array of 50 ocean bottom seismometers in the mid-Atlantic Ana Ferreira
講演番号 タイトル 発表者
ポスター発表 5月27日 PM3
SSS03-P01 Estimations for seismic energy and source duration of shallow tremors along the Nankai Trough incorporating the effects of thick sedimentary layer 武村 俊介
SSS03-P02 南海トラフ沿いの浅部微動モニタリングと誤検出識別 溜渕 功史
SSS03-P03 Detection of slow slip event from seafloor pressure record using PCA: A case study in Hikurangi Subduction zone 大塚 英人
SSS03-P04 Ocean infragravity waves at seafloor DONET stations Hou-Sheng Cheng
SSS03-P05 Empirical Green's Function Retrieval of Infra-gravity Waves in the Pacific Ocean via Ambient Noise Interferometry Kun Chi Ho
SSS03-P06 Infragravity wave generation and propagation in the Pacific Ocean revealed by ambient noise correlation Kai Xun Chen
SSS03-P07 Noise on Ocean Bottom Seismometers: Observations and New Directions Helen A Janiszewski
SSS03-P08 Space-time monitoring of seafloor shear-wave velocity changes using seismic ambient noise Peng Guo
SSS03-P09 地震波干渉法による日本海溝北部の海底下構造の時空間変化とその解釈 東 龍介
SSS03-P10 Seafloor Rayleigh ellipticity, measured from unoriented data, and its significance for passive seismic imaging in the ocean Sanxi AI
SSS03-P11 High-resolution Tomographic Imaging of the Indo-Australian Plate with Multimode Surface Waves Debasis D Mohanty
SSS03-P12 The Oldest-2 array observation: Second seafloor observation to study the lithosphere–asthenosphere system beneath the oldest Pacific Ocean 一瀬 建日
SSS03-P13 Seismic and thermal structure imaging in NE Japan: New insights into slab melting and arc magmatism Zhi Wang